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Generac G-Force 1000 Series Engine

The Generac G-Force 1000 Series is a 1 L 2-cylinder air-cooled engine rated at 3600 rpm. It powers generator sets from Generac, including the 15 kW EcoGen, G007034-0, G007035 and G007036. It holds 1.8 L (0.5 gal) of oil.

Also known as: Generac G-Force 1000 Series, G-Force 1000 Series

Part of the Generac G-Force 1000 engine family — 3 variants share parts & fitment.

0.999 L

Displacement

Cylinders

3600 rpm

Rated speed

1.8 L

Oil capacity

On this pageSpecs Generator sets Maintenance FAQ Service intervals Torque & specs Fluids Fault codes Procedures Wiring

Engine specifications

Oil capacity	1.8 L
Displacement	0.999 L
Cylinders	2
Aspiration	Air-cooled
Rated speed	3600 rpm

Generator sets powered by this engine

Generac 15 kW EcoGen Generac G007034-0 Generac G007035 Generac G007036 Generac G007037 Generac G0070420 Generac G007045-0 Generac G007046-0 Generac G007145-0 Generac G007146-0 Generac G007163-0 Generac G007189-0 Generac G0072100 Generac G007219-0

How to read your Generac engine serial & model number →

Troubleshooting

Fault codes

Code	Meaning	Remedy
HIGH TEMPERATURE	Unit shuts down during operation — LED RED	Inspect ventilation around generator, intake, exhaust, and rear of generator. If no obstructions are present, contact an IASD.
OVERLOAD REMOVE LOAD	Unit shuts down during operation — LED RED	Clear alarm and remove household loads from generator. Put back in AUTO and restart.
RPM SENSE LOSS	Unit was running and shuts down, attempts to restart — LED RED	Clear alarm and remove household loads from generator. Put back in AUTO and restart. If generator does not start, contact an IASD.
NOT ACTIVATED	Unit will not start in AUTO with utility loss — LED NONE	Verify if screen says unit not activated. See Activation.
LOW OIL PRESSURE	Unit will not start in AUTO with utility loss — LED RED

Symptoms & remedies

Symptom	Cause	Remedy
Engine will not crank	Blown fuse	Correct short circuit condition by replacing 7.5A fuse in generator control panel; Contact an IASD if fuse continues to blow
Engine will not crank	Loose, corroded, or faulty battery cables	Tighten, clean, or replace as necessary
Engine will not crank	Faulty starter contact
Engine will not crank	Faulty starter motor
Engine will not crank	Discharged battery	Charge or replace battery
Engine cranks but will not start	No fuel	Replenish fuel / turn on fuel shutoff valve
Engine cranks but will not start	High fuel pressure	Check and adjust fuel pressure
Engine cranks but will not start	Fuel selector in wrong position	Set fuel conversion valve to correct position and program controller for fuel type, if necessary
Engine cranks but will not start	Faulty fuel solenoid (FS)	Contact an IASD for assistance
Engine cranks but will not start	Harness/wiring issue
Engine cranks but will not start	Faulty spark plug(s)	Replace spark plug(s)
Engine cranks but will not start	Valve clearance out of adjustment. (If applicable. See Specification section in owner's manual.)	Inspect and adjust valve clearance
Engine starts hard and runs rough	Plugged or damaged air cleaner	Inspect and clean or replace air cleaner
Engine starts hard and runs rough	Faulty spark plug(s)	Replace spark plug(s)
Engine starts hard and runs rough	Incorrect fuel pressure	Verify fuel pressure to fuel regulator is 10–12 in water column (2.49–2.99 kPa) for LP, and 3.5–7.0 in water column (0.87–1.74 kPa) for NG
Engine starts hard and runs rough	Fuel selector in wrong position	Set fuel conversion valve to correct position and program controller for fuel type, if necessary
Engine starts hard and runs rough	Valve clearance out of adjustment. (If applicable. See Specification section in owner's manual.)	Inspect and adjust valve clearance
Engine starts hard and runs rough	Internal engine issue	Contact an IASD for assistance
Unit is set to OFF, but engine continues to run	Controller wired incorrectly	Contact an IASD for assistance
Unit is set to OFF, but engine continues to run	Faulty control board
No AC output from generator	Generator MLCB (generator disconnect) is OFF (OPEN)	Set generator MLCB (generator disconnect) to ON (CLOSED)
No AC output from generator	Generator internal failure	Contact an IASD for assistance
No AC output from generator	Engine may be warming up. See Cold Smart Start.	Check controller screen to verify status
No transfer to standby after utility source failure	Generator MLCB (generator disconnect) is OFF (OPEN)	Set generator MLCB (generator disconnect) to ON (CLOSED)
No transfer to standby after utility source failure	Faulty transfer switch coil	Contact an IASD for assistance
No transfer to standby after utility source failure	Faulty transfer relay
No transfer to standby after utility source failure	Transfer relay circuit open
No transfer to standby after utility source failure	Faulty control logic board
No transfer to standby after utility source failure	Engine may be warming up. See Cold Smart Start.	Check controller screen to verify status
Unit consumes large amounts of oil	Excessive engine oil	Adjust oil to correct level. See checking engine oil level section in owner's manual.
Unit consumes large amounts of oil	Faulty engine breather	Contact an IASD for assistance
Unit consumes large amounts of oil	Incorrect type or viscosity of oil	See engine oil requirements in owner's manual.
Unit consumes large amounts of oil	Damaged gasket, seal, or hose	Inspect for oil leaks.
Unit consumes large amounts of oil	Restricted air filter	Replace air filter.
Wi-Fi network connection broken or intermittent	Various	See Wi-Fi module owner's manual.
Unit running in AUTO but no power in house — LED FLASHING GREEN		Check generator MLCB (generator disconnect). If it is ON, contact an IASD.
Unit will not start in AUTO with utility loss — LED GREEN		Check screen for start delay countdown. If startup delay is greater than expected, contact an IASD to adjust between 2 to 1500 seconds.

Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.

Common problems

Unit will not start in AUTO with utility loss — LED RED LOW OIL PRESSURE
Cause: Check LEDs / screen for alarms.
Fix: Check oil level and add oil as needed. If oil level is correct, contact an IASD.
Engine cranks but will not start
Cause: No fuel
Fix: Replenish fuel / turn on fuel valve.
Engine starts hard and runs rough
Cause: Plugged or damaged air cleaner
Fix: Inspect and clean air cleaner.
No transfer to standby after utility source failure
Cause: Generator MLCB (generator disconnect) is OFF (OPEN)
Fix: Set generator MLCB (generator disconnect) to ON (CLOSED).
Unit will not start in AUTO with utility loss
Cause: Start delay countdown
Fix: If the start up delay is greater than expected, contact servicing dealer to adjust from 2 to 1500 seconds.
Engine will not crank
Cause: Blown fuse
Fix: Correct short circuit condition by replacing 7.5 A fuse in generator control panel. Contact an IASD if fuse continues to blow.
Unit consumes large amounts of oil
Cause: Excessive engine oil
Fix: Adjust oil to correct level. See Checking Engine Oil Level.
Yellow LED illuminated in any state LOW BATTERY
Fix: Clear alarm. Using control panel, check battery by navigating to BATTERY MENU option from MAIN MENU. If battery condition displays GOOD, contact an IASD. If control panel displays CHECK BATTERY, replace battery
Unit will not start in AUTO with utility loss — LED: RED LOW OIL PRESSURE
Fix: Check oil level and add oil as needed. If oil level is correct, contact an IASD
Unit will not start in AUTO with utility loss. NOT ACTIVATED
Cause: Unit not activated
Fix: Refer to activation section in owners manual.
No AC output from generator
Cause: Generator MLCB (generator disconnect) is OFF (OPEN)
Fix: Set generator MLCB (generator disconnect) to ON (CLOSED).
Engine cranks but won't start
Cause: Fuel supply and pressure faulty
Fix: Test 66 - Check fuel supply and pressure; find and correct cause of no fuel or low pressure
Yellow LED illuminated in any state — LED YELLOW LOW BATTERY
Cause: Check screen for additional information.
Fix: Clear alarm. Using control panel, check battery by navigating to BATTERY MENU option from MAIN MENU. If battery condition displays GOOD, contact an IASD. If control panel displays CHECK BATTERY, replace battery.
Unit shuts down during operation — LED RED HIGH TEMPERATURE
Cause: Check LEDs / screen for alarms.
Fix: Inspect ventilation around generator, intake, exhaust, and rear of generator. If no obstructions are present, contact an IASD.
Engine will not crank when AUTO-OFF-MANUAL switch is set to "MANUAL"
Cause: Battery faulty
Fix: Test 61 - Check battery; replace

Compiled from service & troubleshooting documentation across every generator set that uses the Generac G-Force 1000 Series.

Maintenance schedule

Item	Spec	Capacity	Part #	Interval
Air filter			0J8478	1000 hr	Amazon eBay $20.00 NAPA $24.32 KuduParts $15.00
Fuel filter	Approx. 1.9 qt/1.8 L		—	200 hr
Oil filter			070185E	500 hr	Amazon eBay $30.00 NAPA $9.09 FridayParts $45.99
Battery	12 volts, Group 26R-540CCA minimum or Group 35AGM-650CCA minimum		0H3421S		Amazon eBay $283.32
Belt	Approx. 1.9 qt/1.8 L		—	200 hr
Coolant			—
Oil	Synthetic SAE 5W-30 for all temperature ranges; API SJ, SL, or better	3.75 Quarts (3.55 Liters)	—	500 hr
Spark plug	Gap 0.040 in. (1.02 mm); torque to 18.4 ft-lbs (25 Nm)		RC12YC	1000 hr	Amazon eBay $12.90 NAPA $11.52 FridayParts $19.99

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

Item	Action	Hours	Months	Notes
Oil level	Check	24 hr	1 mo	Monthly or 24 hours of continuous operation
Aceite del motor	Change	25 hr		First service — Después del período de asentamiento de 25 horas, se recomienda utilizar el aceite 5W-20 propiedad de Generac para uso continuo.
Huile moteur et filtre à huile	Change	25 hr		First service — Après les premières 25 heures de marche
Oil	Change	200 hr	24 mo	First service — After the first 25 hours of operation
Oil filter	Change	200 hr	24 mo	First service — After the first 25 hours of operation
Valve Clearance	Check	400 hr		First service — Check/adjust after first 25 hours of operation
Engine governor oil level	Check	50 hr		Check prior to initial use and every 50 operating hours thereafter.
Engine oil and filter	Replace	100 hr	12 mo	First service — After first 25 hours; then every 100 hours or 1 year. Cold weather (<4.4°C) or continuous hot (>29.4°C): every 100 hours or 1 year
Coolant Level and Hoses	Check	125 hr	12 mo	Schedule A; also daily if running continuously
Enclosure Louvers	Check	125 hr	12 mo	Schedule A; also daily if running continuously
Fuel Lines	Check	125 hr	12 mo	Schedule A; also daily if running continuously
Lubricating Oil Level and Drain Hose	Check	125 hr	12 mo	Schedule A; also daily if running continuously
Lubricating Oil and Oil Filter	Replace	125 hr	12 mo	First service — Schedule A
Radiator for Clogging	Check	125 hr	12 mo	Schedule A; also daily if running continuously
Aceite de motor y filtro de aceite	Change	200 hr	24 mo	First service — Programa de mantenimiento A
Air cleaner	Inspect	200 hr		2 years or 200 hours; replace as necessary
Batería (condición, nivel de electrolito y estado de carga)	Check	200 hr	24 mo	Programa de mantenimiento A
Battery condition	Check	200 hr	24 mo	Schedule A.
Battery condition and charge	Check	200 hr	24 mo	Schedule A maintenance
Change Air Filter	Change	200 hr		200 hours or 2 years
Change Oil & Filter	Change	200 hr		200 hours or 2 years; 20kW: 100 hours or 2 years
Complete Tune-Up	Other	200 hr	24 mo	Independent Authorized Dealer must perform; 2 years or 200 hours
Engine oil	Change	200 hr	24 mo	First service — up to a 2 year/200 hour oil change interval
Huile à moteur et filtre à huile	Change	200 hr	24 mo	First service — Calendrier A: tous les deux ans ou toutes les 200 heures. Changer l'huile et le filtre après les 25 premières heures. En conditions froides (moins de 4,4 °C/40 °F) ou fonctionnant en continu à plus de 29,4 °C/85 °F, changer annuellement ou toutes les 100 heures.
Inspect Air Filter	Inspect	200 hr		200 hours or 2 years
Inspect Spark Plugs	Inspect	200 hr		200 hours or 2 years
Óleo lubrificante e filtro de óleo	Change	200 hr	24 mo	First service — Trocar após as primeiras 25 horas; Programação A (2 anos ou 200 h); em clima frio (<4,4 °C) ou quente contínuo (>29,4 °C) anualmente ou 100 h
Aceite del motor y filtro de aceite	Replace	400 hr	48 mo	First service — Programa B: cada cuatro años o 400 horas.
Air cleaner	Clean	400 hr		Clean or replace as necessary; R = Replace as Necessary; 400 hours
Air filter	Replace	400 hr	48 mo	Schedule B maintenance
Battery condition, electrolyte level, and state of charge	Inspect	400 hr	48 mo	Schedule B
Bougies d'allumage	Clean	400 hr	48 mo	Nettoyer les bougies, vérifier l'écartement ou les remplacer. Calendrier A et Calendrier B.
Bujía(s)	Replace	400 hr	48 mo	Programa B: cada cuatro años o 400 horas.
Bujías	Replace	400 hr	48 mo	Programa B; limpiar, comprobar separación y sustituir
Change spark Plugs	Change	400 hr		400 hours or 10 years
Engine air filter	Replace	1000 hr	48 mo	Schedule B; emissions-critical maintenance
Engine oil and oil filter	Change	400 hr	48 mo	First service — Schedule B.
Engine oil and oil filter	Replace	400 hr	48 mo	First service — Schedule B
Filtre à air du moteur	Replace	400 hr	48 mo	Calendrier B: tous les quatre ans ou toutes les 400 heures.
Filtro de aire del motor	Replace	400 hr	48 mo	Programa de mantenimiento B

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Belt deflection	3/8 - 5/8	in	22 Ibs (10 kgf) force midway between water pump and alternator pulleys
Clearance	Belt deflection	7.6 - 12.7	mm	22 Ibs (10 kgf) force midway between water pump and alternator pulleys
Gap	Armature Air Gap	0.008-0.012	inch
Gap	Breaker Point Gap	0.018-0.022	inch
Gap	Folga da vela de ignição	0,020	pol
Gap	Folga da vela de ignição	0,040	pol
Gap	Folga da vela de ignição	0,508	mm
Gap	Folga da vela de ignição	1,02	mm
Gap	Ignition magneto air gap	0.008-0.012	inch
Gap	Ignition magneto air gap	0.008-0.012 inch (0.20-0.30 mm)	gap	V-twin engines; fixed non-adjustable on single cylinder
Gap	Ignition magneto air gap (V-twin)	0.008-0.012 inch (0.20-0.30 mm)	inch / mm
Gap	Ignition magneto gap to flywheel (replacement)	0.010 inch	inch
Gap	Separación de electrodos de bujía (11 kW)	0.030	in (0.76 mm)
Gap	Separación de electrodos de bujía (16/20/22 kW)	0.040	in (1.02 mm)
Gap	Separación de electrodos de bujía (9 kW)	0.020	in (0.508 mm)
Gap	Separación de las bujías	0.508	mm (0.020 pulg.)
Gap	Separación de las bujías	1.02	mm (0.040 pulg.)
Gap	Spark Plug Gap	0.030	in (0.76 mm)	11 kW (GTH-530)
Gap	Spark Plug Gap	0.031-0.035	inch
Gap	Spark Plug Gap	0.040	in. (1.02 mm)
Gap	Spark Plug Gap	1.02	mm	recommended specification
Gap	Spark Plug Gap (1.5L engines, 25/30 kW)	0.9	mm
Gap	Spark Plug Gap (2.4L engines, 22/27/36/45 kW)	1.07-1.17	mm
Gap	Spark Plug Gap (32/38 kW and 60 kW)	0.71	mm
Gap	Spark plug gap	0.020	in (0.508 mm)
Gap	Spark plug gap	0.020 in (0.508 mm)	in (mm)
Gap	Spark plug gap	0.040 in (1.02 mm)	in (mm)
Gap	Spark plug gap	0.508	mm
Gap	Spark plug gap	0.76	mm (0.030 in)
Gap	Spark plug gap	0.76 mm (0.030 inch)	gap	410 cc and 530 cc engines
Gap	Spark plug gap	1.02 mm (0.040 inch)	gap	990 cc and 999 cc engines
Gap	Spark plug gap (10 kW)	0.020	in (0.508 mm)
Gap	Spark plug gap (11 kW)	0.030	in (0.76 mm)
Gap	Spark plug gap (12/14/16/17/20 kW)	1.02	mm
Gap	Spark plug gap (14-24 kW)	0.040	in (1.02 mm)
Gap	Spark plug gap (14–24 kW)	0.040	in (1.02 mm)	cold
Gap	Spark plug gap (16/20/22 kW)	0.040	in (1.02 mm)
Gap	Spark plug gap (8/10 kW)	0.76	mm
Gap	Spark plug gap (9 kW)	0.020	in (0.508 mm)
Gap	Spark plug gap 10kW	0.030 inch	inch
Gap	Spark plug gap 13/14/15/16/17kW	0.040 inch	inch
Gap	Spark plug gap 20kW	0.030 inch	inch
Gap	Spark plug gap 8kW	0.030 inch	inch
Gap	Écartement de bougie	0,508	mm (0,020 po)
Gap	Écartement de bougie	1,02	mm (0,040 po)
Gap	Écartement des électrodes des bougies d'allumage	0.508	mm (0,020 po)
Gap	Écartement des électrodes des bougies d'allumage	0.76	mm (0,030 po)
Gap	Écartement des électrodes des bougies d'allumage	1.02	mm (0,040 po)
Other	Cold Smart Start fixed temperature	20 F (-7 C)	F (C)	22-26 kW
Other	Cold Smart Start fixed temperature	50 F (10 C)	F (C)	10-20 kW
Other	Compression Ratio (1.5L)	11:1
Other	Compression Ratio (2.4L)	9.5:1
Other	Compression difference maximum between cylinders	25 percent	percent
Other	Compression ratio	9.5:1
Other	Cylinder leak down acceptable leakage	20	percent
Other	Engine start sequence	16 sec on, 7 rest	90 sec maximum duration	cyclic cranking
Other	Exercise time length (16-22 kW)	5	minutes
Other	Exercise time length (9-11 kW)	12	minutes
Other	Fusível do painel de controle	7,5	A
Other	Ordem de partida (10 kW)	15 s de arranque, 7 s de repouso, seguidos por quatro ciclos adicionais de 7 s de arranque e 7 s de repouso		cinco ciclos de manivela

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Capacity	Notes
Coolant	50 percent soft water and 50 percent ethylene glycol base anti-freeze	low silicate anti-freeze	2.0 U.S. gallons	Do not use chromate base rust inhibitor or high silicate anti-freeze boosters.
Coolant	50/50 ethylene glycol	Generac 50/50 ethylene glycol type coolant	9.5 liters	Use demineralized or distilled water; do not use propylene glycol. Coolant mix 40-60% volume.
Engine oil		API SJ, SL ou mieux		Changer l'huile chaque année ou toutes les 100 heures par temps froid (< 4,4 °C) ou exploitation continue par temps chaud (> 29,4 °C)
Engine oil	10W-30	API Service Class SJ, SL or better		Between 40ºF and -10ºF
Engine oil	30 weight organic oil (factory fill)			Units run and tested at factory prior to shipping, no break-in required
Engine oil	5W-20	Generac proprietary 5W-20 Synthetic (after 30 hour break-in)	3.8 liters	Factory filled with 5W-20; 60 kW capacity 5.25 quarts (5 liters). Do not use special additives.
Engine oil	5W-20 (Generac proprietary)	API Service Class SJ, SL, or better	1.03 L	Oil capacity including filter. Use for continuous use after the 25 hour break-in period; specifically formulated for gaseous powered Generac generators. Do not use special additives. Change every year or 100 hours in cold weather (below 40 F) or continuous hot weather (above 85 F).
Engine oil	5W-30	Aceite orgánico 5W-30 (la unidad se entrega de fábrica llena con este aceite)		Compruebe el nivel de aceite y, de ser necesario, añada la cantidad apropiada con la viscosidad correcta. No llene en exceso. Consulte 'Recomendaciones para el aceite de motor' para tipo/viscosidad.
Engine oil	5W-30 (factory fill) / 5W-20 GEO (continuous)	Generac proprietary gaseous engine oil (GEO)		Unit comes filled with 5W-30 organic oil; after 25 hour break-in use 5W-20 GEO
Engine oil	Generac 5W-20 exclusive	API SJ, SL ou mieux		Après la période de rodage de 25 heures et à chaque intervalle; spécialement formulée pour les génératrices Generac alimentées au gaz
Engine oil	SAE 30	API Service Class SJ, SL or better	1.5 Qts	Above 32ºF; capacity varies by engine
Engine oil	SAE 30 above 32°F; 10W-30 between 40°F and -10°F; Synthetic 5W-30 10°F and below	API Service Class SJ, SL or better; use no special additives	1.5 Qts	Oil capacity including filter
Engine oil	SAE 40 above 86 F; SAE 30 32-85 F; SAE 20W below 32 F; SAE 10W-30 all seasons	API Service SC, SD, SE or SF	3.0 U.S. quarts	Liquid-cooled 1.2 liter engine with filter change; 2.5 U.S. quarts without filter change.
Engine oil	SAE 5W-30 Synthetic	API Service Class SJ, SL or better		Do not use special additives
Engine oil	SAE 5W-30 sintético	API SJ, SL o mejor	1.03 l	9 kW; no usar aditivos especiales
Engine oil	SAE 5W-30 synthetic; SAE 30 above 60 F; SAE 10W-30 20-59 F; SAE 5W-20/5W-30 below 20 F	API Service SF, SF/CC, or SF/CD	1.5 U.S. quarts	Air-cooled V-Twin engine crankcase capacity about 1.5 U.S. quarts. Oil makeup tank capacity about 2.5 U.S. quarts on Model 9067.
Engine oil	SAE 5W-30 synthétique	API classe de service SJ, SL ou supérieure		Huile SAE 5W-30 synthétique pour toutes les plages de température. N'utilisez aucun additif spécial.
Engine oil	Synthetic 5W-30	API Service Class SJ, SL or better		10ºF and below
Engine oil	Synthetic SAE 5W-30	API SJ, SL, or better	3.75 Quarts (3.55 Liters)	For all temperature ranges; do not use special additives
Fuel		Gas natural: contenido de BTU de por lo menos 1000 BTU/ft3 (37,26 MJ/m3). Gas LP: por lo menos 2500 BTU/ft3 (93,15 MJ/m3)	250.0 gal (946 l)	Tamaño mínimo del tanque de LP es 250 gal (946 l), salvo que los cálculos de la unidad indiquen uno mayor. Solo sistema de extracción de vapor para LP.
Fuel	Gas natural	mínimo 1000 BTU por pie cúbico (37.26 megajulios por metro cúbico)		Reducciones típicas de gas natural 10-20 % respecto a LP
Fuel	Gaz naturel		37.26 mégajoules par mètre cube (1 000 BTU par pied cube) minimum	Teneur en BTU minimale du gaz naturel.
Fuel	Gaz naturel d'au moins 37,26 mégajoules par mètre cube (1 000 BTU par pied cube)	NFPA 54
Fuel	Gaz propane liquide (gazeux)		93.15 mégajoules par mètre cube (2 500 BTU par pied cube) minimum	Capacité de réservoir de gaz propane liquide minimum recommandée de 946 litres (250 gallons).
Fuel	Gaz propane liquide d'au moins 93,15 mégajoules par mètre cube (2 500 BTU par pied cube)	NFPA 58 / ICC IFGC		Réservoir de gaz propane liquide d'une capacité minimale de 946 litres (250 gallons).
Fuel	LP (vapor)	mínimo 2500 BTU por pie cúbico (93.15 megajulios por metro cúbico)	946.0 l	Se recomienda tanque de LP de 250 gal. (946 l) de tamaño mínimo si se convierte de NG a LP
Fuel	LP Gas	at least 2,520 Btus per cubic foot		Vapor withdrawal; required pressure 10-12 inches water column
Fuel	LP Gas (vapor), min 2500 BTU/ft3 (93.15 MJ/m3)			Minimum LP tank size 250 gal (946 L) recommended when converting
Fuel	LP gas (vapor), minimum 2,500 BTUs per ft3 (93.15 megajoules per m3)			Vapor withdrawn liquid propane.
Fuel	LP vapor	at least 2,520 BTU’s per cubic feet		Required pressure 10 inches to 12 inches water column; vapor withdrawal system only

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity	Action
1048	VSCF Overload	Unit shuts down during operation	Shutdown	Alternator, AVR or wiring damaged. Contact servicing dealer.
1049	VSCF Overload	Unit shuts down during operation	Shutdown	Generator output shorted or severely overloaded; clear overload and restart
1051	VSCF High Battery	Yellow LED illuminated in any state	Warning	Voltage supply to AVR is high; check external battery charger installation or contact servicing dealer
1052	VSCF DC Overvoltage	Unit shuts down during operation	Shutdown	Generator temporarily overloaded or output shorted; try restart
1053	VSCF Gate Fault	Unit shuts down during operation or starting	Shutdown	AVR is damaged; contact servicing dealer
1054	VSCF IGBT Overtemp.	Unit shuts down during operation or starting	Shutdown	Replace AVR filter, inspect fan, check intake/exhaust, check ambient temperature; contact servicing dealer
1055	VSCF Phase Error	Unit shuts down during starting	Shutdown	Check stepper motor, linkage, gas pressure; contact servicing dealer if alternator damaged
1056	VSCF Undervoltage	Unit shuts down during operation or starting	Shutdown	Load too large, remove and restart; or alternator/AVR damage, contact servicing dealer
1057	VSCF Overvoltage	Unit shuts down during operation or starting	Shutdown	Generator overloaded; remove load and restart
1058	VSCF DC Undervoltage	Unit shuts down during operation or starting	Shutdown	Alternator damage; contact servicing dealer
1059	VSCF Field Loss	Unit shuts down during starting	Shutdown	Alternator damage; contact servicing dealer
1060	Big Fan Failure	Unit shuts down during operation	Shutdown	AVR electronics exceeded 70°C; replace AVR filter, check intake/exhaust/ambient temp; contact servicing dealer
1061	VSCF Field Loss	Unit shuts down during operation	Shutdown	Alternator damage; contact servicing dealer
1065	Overfrequency	Unit shuts down during operation	Shutdown	Overload, RPM sensor failure, or stepper motor problem; contact servicing dealer
1066	VSCF Speed mismatch	Unit shuts down during operation or starting	Shutdown	Fuel pressure loss, large overload, or throttle/engine problem; contact servicing dealer
1070	Small fan failure	Small fan failure displayed; continues 80 minutes without fan if running in AUTO	Warning	Check fan wiring/mechanical, check AVR filter for blocked air path
AUXILIARY SHUTDOWN	Auxiliary Shutdown	Unit will not start	Shutdown	Set auxiliary shutdown switch(es) to CLOSED (I); clear alarm
BATERÍA BAJA	BATERÍA BAJA	Indicador LED amarillo encendido en cualquier estado.	Warning	Borre la alarma. Navegue hasta BATTERY MENU del MAIN MENU para revisar la batería. Si indica GOOD, comuníquese con un IASD. Si indica CHECK BATTERY, reemplace la batería.
BATTERY PROBLEM	Battery Problem	Yellow LED illuminated	Warning	Contact servicing dealer
Battery Problem	Battery Fault	Battery condition poor or battery charger issue	Warning	Inspect battery condition and connections. Contact IASD if needed.
CARGADOR SIN CA	CARGADOR SIN CA	Indicador LED amarillo encendido en cualquier estado.	Warning	Comuníquese con un IASD.
CHARGER MISSING AC	Charger Missing AC	AC power unavailable for battery charging	Warning	Restore AC power supply or check generator AC output.
CHARGER WARNING	Charger Warning	Yellow LED illuminated	Warning	Contact servicing dealer
Controller Fault	Control Module Failure	Internal controller fault detected	Shutdown	Contact IASD for assistance
CONTROLLER FAULT	Controller Fault	Alarm message listed on controller menu.	Shutdown	Contact an IASD.
DESCONEXIÓN AUXILIAR	DESCONEXIÓN AUXILIAR	La unidad no arranca.	Shutdown	Coloque los interruptores de desconexión auxiliar en posición CERRADA (I).
DOWNLOAD FAILURE	Download Failure	Firmware download or update failed	Warning	Retry firmware update. Contact authorized service dealer if problem persists.
EMERGENCY STOP	Emergency Stop	Alarm message listed on controller menu.	Shutdown	Check emergency shutdown switch and reset.
FUSE PROBLEM	Fuse Problem	Unit will not start in AUTO with utility loss	Warning	Check 7.5amp fuse, replace with ATO 7.5Amp fuse if bad
HIGH TEMPERATURE	High Temperature	Unit shuts down during operation	Shutdown	Check ventilation around generator, intake, exhaust and rear of generator
High Temperature	Overheat	Engine operating temperature too high	Shutdown	Inspect ventilation around generator, intake, exhaust, and rear. Ensure no obstructions present.
INSPECCIONE LA BATERÍA	INSPECCIONE LA BATERÍA	Indicador LED amarillo encendido en cualquier estado.	Warning	Inspeccione la batería. Presione ENTER para borrar.
INSPECT BATTERY	Inspect Battery	Yellow LED illuminated indicating battery inspection due	Warning	Inspect battery. Press ENTER to clear.
LOW BATTERY	Low Battery	Yellow LED illuminated	Warning	Clear alarm; check battery via control panel BATTERY MENU; if GOOD contact dealer, else replace battery
Low Battery	Battery Voltage Low	Starting battery voltage below acceptable level	Warning	Inspect battery and battery cables. Charge or replace battery if necessary.
LOW OIL PRESSURE	Low Oil Pressure	Unit will not start in AUTO with utility loss	Shutdown	Check oil level / add oil per Owners Manual
Low Oil Pressure	Low Oil Level or Pressure	Insufficient oil pressure in engine	Shutdown	Check engine oil level and top up if necessary. Contact IASD if problem persists.
LOW VOLTS	Low Volts / Remove Load	Unit will not start in AUTO with utility loss	Shutdown	Clear alarm and remove household loads from the generator. Put in AUTO and restart.
LOW VOLTS REMOVE LOAD	Low Volts Remove Load	Unit will not start in AUTO with utility loss	Shutdown	Clear alarm and remove household loads, put back in AUTO and restart
MISWIRE	Miswire	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
NOT ACTIVATED	Not Activated	Unit will not start in AUTO with utility loss	Warning	Refer to activation section in owners manual
OVERCRANK	Overcrank	Unit will not start in AUTO with utility loss	Shutdown	Check fuel line shutoff valve ON, clear alarm, attempt manual start
Overcrank	Extended Cranking	Engine failing to start after extended crank attempts	Shutdown	Check fuel supply, spark plugs, and fuel system. Contact IASD for further diagnosis.
OVERLOAD	Overload	Load current exceeds generator rated capacity	Shutdown	Clear alarm and remove household loads from the generator. Put back in AUTO and restart.
Overload	Overload Detected	Electrical load exceeds generator capacity	Shutdown	Remove household electrical loads from generator
OVERLOAD REMOVE LOAD	Overload Remove Load	Unit shuts down during operation	Shutdown	Clear alarm, remove household loads, put back in AUTO and restart
OVERLOAD WARNING	Aviso de sobrecarga	Aviso de sobrecarga.	Warning	Remova as cargas domésticas do gerador.
OVERSPEED	Overspeed	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
Overspeed	RPM Overspeed	Engine running at excessive RPM	Shutdown	Contact IASD for assistance
OVERVOLTAGE	Overvoltage	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
Overvoltage	Output Voltage High	Generator voltage exceeding nominal rating	Shutdown	Reduce electrical load and restart. Contact IASD if issue persists.
PROBLEMA DE BATERÍA	PROBLEMA DE BATERÍA	Indicador LED amarillo encendido en cualquier estado.	Warning	Comuníquese con un IASD.
RPM SENSE LOSS	RPM Sense Loss	Unit was running and shuts down, attempts to restart	Shutdown	Clear alarm, remove household loads, put back in AUTO and restart; may be fuel issue, contact servicing dealer
RPM SENSOR LOSS	RPM Sensor Loss	Engine speed sensor failure or loss of RPM signal	Shutdown	Clear alarm and remove household loads from generator. Set back to AUTO and restart. If alarm returns, contact servicing dealer to investigate possible fuel issue.
RPM Sensor Loss	RPM Signal Loss	RPM sensor signal not detected	Shutdown	Contact IASD for assistance
SERVICE A	Service A	Yellow LED illuminated, maintenance due	Info	Perform SERVICE A maintenance, hit ENTER to clear
SERVICE B	Service B	Yellow LED illuminated, maintenance due	Info	Perform SERVICE B maintenance, hit ENTER to clear
SHUTDOWN SWITCH	Shutdown Switch	Unit will not start. Flashing red LED.	Shutdown	Check emergency shutdown switches. Set switch(es) to CLOSED (I). Clear alarm.
STEPPER OVERCURRENT	Stepper Overcurrent	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
UNDERSPEED	Underspeed	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
Underspeed	Engine Speed Too Low	Engine RPM below nominal specification	Shutdown	Contact IASD for assistance
UNDERVOLTAGE	Undervoltage	Unit will not start in AUTO with utility loss	Shutdown	Contact servicing dealer
Undervoltage	Output Voltage Low	Generator voltage below nominal rating	Shutdown	Reduce electrical load and restart. Contact IASD if issue persists.
USB WARNING	USB Warning	USB port firmware update issue detected	Warning	Check USB device compatibility or firmware update status.
WIRING ERROR	Wiring Error	Electrical wiring configuration error detected	Shutdown	Contact authorized service dealer.
Wiring Error	Electrical Wiring Fault	Wiring configuration error detected	Shutdown	Contact IASD for assistance

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Adjust Valve Clearance adjustment

⚠ Allow engine to cool before adjusting valve clearance

⚠ AVR fan operates for 80 minutes after shutdown

Tools: 13mm wrench, 10mm Allen wrench, Feeler gauge

Remove spark plug wires and spark plugs
Remove four screws attaching valve cover, discard gasket
Verify piston at top dead center (TDC) of compression stroke
Loosen rocker jam nut with 13mm wrench
Turn pivot ball stud with 10mm Allen wrench while checking clearance with feeler gauge
Tighten jam nut to 174 in-lbs (19.68 Nm) while holding pivot ball stud
Recheck valve clearance
Install new valve cover gasket and valve cover, torque fasteners to 60 in-lbs (6.8 Nm) in cross pattern
Install spark plugs, torque to 18 ft-lbs (25 Nm)
Connect AVR fan and 4-pin connector
Install AVR filter housing, torque to 50-96 in-lbs (6-11 Nm)
Repeat for other cylinder if necessary

Adjust ignition magneto air gap — V-twin adjustment

Tools: 0.008-0.012 inch thickness gauge

Rotate flywheel until magnet is under module laminations.
Place 0.008-0.012 inch (0.20-0.30mm) thickness gauge between magnet and laminations.
Loosen mounting screws and let magnet pull magneto against gauge.
Tighten both mounting screws.
Rotate flywheel to remove thickness gauge.
Repeat for second magneto.

Adjusting Magneto Flywheel Gap adjustment

⚠ Air gap between ignition magneto and flywheel on single cylinder engines is not adjustable.

Tools: 0.008-0.012 inch thickness gauge

Rotate the flywheel until the magnet is under the module (armature) laminations.
Place a 0.008-0.012 inch (0.20-0.30mm) thickness gauge between flywheel magnet and module laminations.
Loosen the mounting screws and let the magnet pull the magneto down against the thickness gauge.
Tighten both mounting screws.
To remove the thickness gauge, rotate the flywheel.
Repeat the above procedure for the second magneto.

Adjusting Valve Clearance adjustment

⚠ Risk of Burn. Allow the engine to cool before performing the following procedure.

Tools: Feeler gauge, 10 mm wrench, 13 mm wrench, 14 mm wrench, 10 mm hex key

Allow engine to cool before adjusting valve clearance.
Remove spark plug wire(s) away from plugs and remove spark plug(s).
Remove the four screws attaching the valve cover; remove and discard gasket.
Verify piston is at TDC of its compression stroke (both valves closed).
Loosen rocker jam nut using a 10 mm wrench (10 kW) or 13 mm wrench (20–22 kW).
Turn pivot ball stud with a 14 mm wrench (10 kW) or 10 mm hex key (20–22 kW) while checking clearance with a feeler gauge.
Hold pivot ball stud and tighten rocker arm jam nut to specification.
After tightening jam nut, verify valve clearance did not change.
Install new valve cover gasket and valve cover; tighten fasteners in a cross pattern.
Install spark plugs and tighten to 18 ft-lbs (25 Nm).
Attach spark plug wire to spark plug.
Repeat process for other cylinder if equipped.

Ajustar a folga das válvulas adjustment

⚠ Risco de queimaduras. Deixe o motor esfriar antes de executar o procedimento.

Tools: Chave de 10 mm, Chave de 13 mm, Chave de 14 mm, Chave sextavada de 10 mm, Calibrador

Remova os fios das velas de ignição e remova as velas de ignição.
Remova os quatro parafusos que prendem a tampa da válvula; descarte a junta.
Verifique se o pistão está no TDC do seu curso de compressão.
Solte a contraporca do balanceiro (C) com chave de 10 mm ou 13 mm.
Gire o pino de esfera articulada (D) com chave de 14 mm ou sextavada de 10 mm e ajuste a folga.
Aperte a contraporca do braço oscilante e inspecione a folga novamente.
Instale a nova junta e as tampas das válvulas; aperte em padrão transversal.
Instale as velas e aperte a 25 Nm; conecte os fios das velas.

Ajuste de la luz de válvulas adjustment

⚠ Dejar enfriar el motor antes de ajustar.

⚠ Iniciar los cuatro tornillos antes de apretar.

Tools: Calibre de espesores, Llaves de 8/10/13/14 mm, Llave de casquillo, Casquillo grande

Cerrar la válvula de combustible y desconectar la batería.
Retirar cable(s) de bujía y alejarlos.
Retirar la(s) bujía(s).
Llevar el pistón al PMS de la carrera de compresión.
Retirar los cuatro tornillos de la cubierta de válvulas y desechar la junta.
Aflojar la contratuerca del balancín.
Girar el prisionero de bola pivote para ajustar la luz con calibre.
Sostener el prisionero y apretar la contratuerca; verificar y reinstalar con junta nueva.

Ajuste de la separación de la válvula adjustment

⚠ Deje que el motor se enfríe antes del procedimiento.

⚠ Desconecte el cable negativo y luego el positivo de la batería.

⚠ No necesario en unidades 14 o 18 kW con motor de 816 cc.

Tools: Llave de 10 mm, Llave de 13 mm, Llave de 14 mm, Llave hexagonal de 10 mm, Galga de espesores

Retire los hilos de las bujías y las bujías.
Retire los cuatro tornillos de la cubierta de la válvula y deseche la junta.
Verifique que el pistón esté en el PMS de su carrera de compresión.
Suelte la contratuerca del balancín (llave 10 mm en 10 kW, 13 mm en 20 a 24 kW).
Gire el espárrago del pivote (llave 14 mm en 10 kW, hexagonal 10 mm en 20 a 24 kW) ajustando la separación.
Sostenga el espárrago y apriete la contratuerca del balancín.
Inspeccione la separación para verificar que no cambió.
Instale una junta nueva y la cubierta de la válvula; apriete en patrón cruzado.
Instale las bujías y apriete a 25 Nm (18 lb-pie).
Conecte los hilos de las bujías.

Ajuster le jeu des soupapes adjustment

⚠ Risque de brûlure : laisser le moteur refroidir avant d’exécuter la procédure.

⚠ Réglage non requis sur les modèles de 14 ou 18 kW à moteur de 816 cc.

Tools: Clé de 10 mm ou 13 mm, Clé de 14 mm ou clé hexagonale de 10 mm, Jauge d’épaisseur

Laisser le moteur refroidir.
Débrancher les câbles de bougie et les placer à l’écart.
Retirer les bougies.
Retirer les quatre vis du cache-culbuteurs et mettre le joint au rebut.
S’assurer que le piston est au point mort haut (PMH) de sa course de compression.
Desserrer le contre-écrou de culbuteur.
Faire tourner le goujon pivot tout en contrôlant le jeu avec une jauge d’épaisseur.
Ajuster le jeu conformément à la section Moteur.
Tenir le goujon pivot et serrer le contre-écrou au couple spécifié.
Poser un joint de cache-culbuteurs neuf et remonter le cache-culbuteurs.
Mettre les bougies en place au couple de 25 Nm (18 pi-lb).

Check and Adjust Accessory / Drive Belt adjustment

Tools: Belt deflection gauge

Inspect belt for cracks, fraying, excessive wear or other damage.
Verify belt is free of grease and oil; replace if contaminated.
Using a suitable gauge, apply 22 Ibs (10 kgf) force midway between water pump and alternator pulleys.
Loosen DC alternator tension bracket screw.
Rotate alternator outward to reduce belt deflection.
Rotate inward to increase belt deflection.
Tighten DC alternator tension bracket screw to 17-22 ft-lbs (23-30 Nm).
Recheck belt deflection and repeat steps as necessary.

Check and Adjust Engine Governor (Single Cylinder Units) adjustment

Tools: Frequency meter, torque wrench

Loosen the governor clamp bolt.
Hold the governor lever at wide open throttle position.
Rotate the governor shaft clockwise as far as it will go.
Tighten the governor lever clamp bolt to 70 inch-pounds (8 N-m).
Start the generator; let it stabilize and warm up at no-load.
Connect a frequency meter across the generator AC output leads.
Turn the primary adjust screw to obtain a frequency of 61.5 Hz.
Turn the secondary adjust screw to obtain a frequency of 62.5 Hz.

Check and Adjust Ignition Magnetos adjustment

Tools: 0.008-0.012 inch thickness gauge

Rotate flywheel until magnet is under module laminations.
Place 0.008-0.012 inch thickness gauge between magnet and laminations.
Loosen mounting screws and let magnet pull magneto down.
Tighten both mounting screws.
Rotate flywheel to remove gauge.
Repeat for second magneto.

Check and Adjust Valves adjustment

Tools: 10mm allen wrench, flat feeler gauge, torque wrench

Remove the four (4) screws from the rocker cover.
Remove the rocker cover and rocker cover gasket.
Loosen the rocker arm jam nut.
Use a 10mm allen wrench to turn the pivot ball stud.
Check clearance between rocker arm and valve stem with a flat feeler gauge.
Set valve clearance to 0.05-0.1mm (0.002-0.004 in.) cold.
Hold pivot ball stud with allen wrench and tighten rocker arm jam nut to 174 inch pounds.
Recheck valve clearance to make sure it did not change.
Re-install rocker cover gasket, rocker cover and the four screws.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
		0 – c.c. (-)	NOIR no 3	Fil de mise à la terre normal; obligatoire si jumelé à un commutateur de transfert de gestion intelligente de l'alimentation de Generac.
		23	BLANCO Núm. 5	Cable de señal lógica del control de transferencia
		23 (White #5)	E	Transfer Control Signal Wire
		Conductor Lug	250 MCM - #6	Transfer switch wire range
		Generator control wiring - 1-115 ft (1-35 m)	N1, N2, T1, 23, 194	No. 18 AWG
		Generator control wiring - 116-185 ft (36-56 m)	N1, N2, T1, 23, 194	No. 16 AWG
		Generator control wiring - 186-295 ft (57-89 m)	N1, N2, T1, 23, 194	No. 14 AWG
		Generator control wiring - 296-460 ft (90-140 m)	N1, N2, T1, 23, 194	No. 12 AWG
		Ground Lug	2/0 - #14	Transfer switch wire range
		Longueur de fil 1 à 35 m (1 à 115 pi)	Calibre 18 AWG	Conducteurs en cuivre seulement.
		Longueur de fil 35 à 56 m (115 à 185 pi)	Calibre 16 AWG	Conducteurs en cuivre seulement.
		Longueur de fil 56 à 89 m (185 à 295 pi)	Calibre 14 AWG	Conducteurs en cuivre seulement.
		Longueur de fil 89 à 140 m (295 à 460 pi)	Calibre 12 AWG	Conducteurs en cuivre seulement.
		Neutral Lug	350 MCM - #6	Transfer switch wire range
		Neutral for battery charger	WHITE NEU/00	Must be connected to keep battery charged whether unit is running or not
	1	Connect a 2008 and later load center switch to a pre-2008 air-cooled generator: Wire 0 will not be utilized. Remove battery charger from the transfer switch. Connect N1 (BLU) to N1 (YEL), N2 (YEL) to N2 (YEL), 23 (BRN) to 23 (WHT), 194 (ORG) to 15B (RED) using UL approved wire nuts.	N1, N2, 23, 194, 15B, 0	Battery charger in transfer switch will not be utilized in operation of the generator.
	1	Connect a pre-2008 load center switch to a current or future air-cooled generator: Wire 0 will not be utilized. Connect N1 (BLU) to N1 (YEL), N2 (YEL) to N2 (YEL), 23 (BRN) to 23 (WHT), 194 (ORG) to 15B (RED) using UL approved wire nuts.	N1, N2, 23, 194, 15B, 0	Wire 194 changed to 15B on current model air-cooled generators.
0 VCC		0	NEGRO Núm. 3	CC (-) Cable común de conexión a tierra. Requerido si el generador está apareado con un interruptor de transferencia de gestión de alimentación inteligente Generac.
12 V c.c.		194 – c.c. (+)	ROUGE no 4	Pour les commandes de transfert.
12 VCC		194	ROJO núm. 4	CC (+) para los controles de transferencia
12 VDC		194 (Red #4)	D	DC (+) 12 VDC for Transfer Controls
12 VDC		DC (+) 12 VDC for transfer controls	RED 194
12 VDC		DC (-) common ground wire	BLACK 0
12 VDC		Transfer control signal wire	WHITE 23	Required if generator is paired with optional Digital Power Management (DPM) smart technology
120 V c.a.		T1	BLEU no 3	Avec fusible 120 V c.a. pour le chargeur de la batterie; doit être branché pour que la batterie demeure chargée.
120 VAC		Fused 120 VAC for battery charger	BLUE T1	Must be connected to keep battery charged whether unit is running or not
120 VAC		T1 (White #3)	B	Fused 120VAC for Battery Charger
120 VCA		T1	AZUL Núm. 3	Con fusible para el cargador de baterías (debe estar conectado para mantener la batería cargada, esté o no funcionando la unidad)
120/208	3	parallel wye	S1 through S12; bolted junctions: 4,5,6,10,11,12 to Neutral (00); S1 and S7 to Line E1; S2 and S8 to Line E2; S3 and S9 to Line E3	Voltage Code B. Six coils, twelve leads brought out to AC connection panel.
120/240	1	3-wire	Leads 11 and 44 are hot; junction of Leads 22 and 33 is neutral	Voltage Code A. Stator AC power windings each supply 120 volts AC; in series they supply 240 volts AC.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the Generac G-Force 1000 family

Part #	Description	Category
0J8478	Air Filter	Air filter
0J8478S	Air filter	Air filter
0K3054	AVR Air filter	Air filter
A0006487350	AGM Group BTX20L Battery	Battery
G005819-0	26R Wet Cell Battery	Battery
0J8318	Rotor Brushes	Brush
0C2979	GASKET, VALVE COVER	Gasket
070185E	Oil Filter	Oil filter
070185ES	Filtre à huile recommandé	Oil filter
070185F	Recommended Oil Filter	Oil filter
073590A	FUSE 5A X BUSS	Service part / kit
098290	ASM MOTOR STEPPER	Service part / kit
098941A	HOUSING GOVERNOR CONNECTOR	Service part / kit
098958A	CONNECTOR INTERFACE ASSEMBLY	Service part / kit
0A7568	Door weldment 1.5EPS	Service part / kit
0D7178T	Control panel fuse	Service part / kit
0D8656	BASE MOUNTING 1.5L STNRD & ACSTC	Service part / kit
0D8657	Radiator support 1.5L Mitsubishi	Service part / kit
0D8660	Side brace 1.5L Mitsubishi	Service part / kit
0D8664	Duct acoustic & standard compartment 1.5L	Service part / kit
0D8666	Roof acoustic & standard compartment 1.5L	Service part / kit
0E7886G	CB 70A 2P 240V S BQ2 LB (16KW, 15KW ECOGEN)	Service part / kit
0G66240KEY	Juego de llaves (solo para personal de mantenimiento)	Service part / kit
0G7714	ASSY PCB TRI LED DISPLAY	Service part / kit
0H34215	26R Exide Battery	Service part / kit
0H3421S	26R Exide battery	Service part / kit
0H7853	TERM BLOCK 3P UL 12-20 AWG LBL	Service part / kit
0H7853A	TERM BLOCK 3P UL 12-20 AWG LBL	Service part / kit
0K2098	RELAY 12VDC 30A SPST PILOT DUTY (13, 16-24KW, 15KW ECOGEN)	Service part / kit
0L4836A	FUEL LINE FLEX 3/4 NO PVC (13,16-24KW)	Service part / kit
10000003275	ASSY CONTROLLER 2020 AC HSB	Service part / kit
10000013645	DECAL AUX SHUTDOWN (13,16-24KW)	Service part / kit
10000016218	SWITCH ROCKER SPST ON-OFF IP65	Service part / kit
10000028268	HARN AC HSB EVO2 60HZ 999 ECOGEN W/ CT (15KW ECOGEN) (NOT SHOWN)	Service part / kit
10000029476	BADGE ADHESITIVE GUARDIAN (24KW)	Service part / kit
10000044454	EWAR SEGSI (ESE1) EN (13, 16-24KW)	Service part / kit
A0002197676	WIFI ASSY HSB	Service part / kit
G005621-0	Auxiliary Transfer Switch Contact Kit	Service part / kit
G005703-0	Paint Kit	Service part / kit
G005704-0	Paint Kit	Service part / kit
G006186-0	Power Management Module (50 Amps)	Service part / kit
G006463-4	Mobile Link	Service part / kit
G006485-0	Scheduled Maintenance Kit	Service part / kit
G006829-0	Scheduled Maintenance Kit	Service part / kit
G007000-0	Smart Management Module (50 amp)	Service part / kit
G007000-1	Generac Load Manager (50 amp)	Service part / kit
G007005-0	Wi-Fi LP Fuel Level Monitor	Service part / kit
G007006-0	Smart Management Module (100 amp)	Service part / kit
G007006-1	Generac Load Manager (100 amp)	Service part / kit
G007009-0	LTE LP Tank Fuel Level Monitor	Service part / kit
G007027-0	Fascia Base Wrap Kit	Service part / kit
G007101-0	Battery Pad Warmer	Service part / kit
G007102-0	Oil Warmer	Service part / kit
G007102-1	Oil Heater	Service part / kit
G007103-1	Breather Warmer	Service part / kit
G007103-2	Breather Heater	Service part / kit
G007169-0	Mobile Link® Cellular Accessories - 4G LTE	Service part / kit
G007170-0	Mobile Link® Cellular Accessories - Wi-Fi/Ethernet	Service part / kit
G007211-0	Battery Heater	Service part / kit
G007216-0	Scheduled Maintenance Kit	Service part / kit
G007220-0	Base Plug Kit - Bisque	Service part / kit
G007301-0	High Altitude Kit	Service part / kit
G007303-0	High Altitude Kit (20 kW)	Service part / kit
G007305-0	High Altitude Kit	Service part / kit
G009918-0	Touch-Up Paint Kit	Service part / kit
G050277	DECAL OIL DRAIN (10,20-24KW)	Service part / kit
0K3717	EcoGen Oil System Drain Pump Kit	Pump
0G0767A	Spark Plug (RC12YC or equivalent)	Spark plug
RC12YC	Recommended Spark Plug	Spark plug
G006199-0	PMM Starter Kit	Starter

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

What is the oil capacity of the Generac G-Force 1000 Series?

The Generac G-Force 1000 Series engine has an oil capacity of 1.8 liters.

What is the displacement of the Generac G-Force 1000 Series?

The Generac G-Force 1000 Series has a displacement of 0.999 liters with 2 cylinders.

Which generators use the Generac G-Force 1000 Series engine?

The Generac G-Force 1000 Series powers 14 generator set(s), including Generac 15 kW EcoGen, Generac G007034-0, Generac G007035, Generac G007036, Generac G007037.

How often should you change the oil in the Generac G-Force 1000 Series?

The Generac G-Force 1000 Series oil change interval is every 500 hours.

What is a common problem with the Generac G-Force 1000 Series engine?

A commonly reported issue on generators using the Generac G-Force 1000 Series is: Unit will not start in AUTO with utility loss — LED RED. Cause: Check LEDs / screen for alarms.. Fix: Check oil level and add oil as needed. If oil level is correct, contact an IASD..

Generac G-Force 1000 Series Engine

Engine specifications

Generator sets powered by this engine

Troubleshooting

Fault codes

Symptoms & remedies

Common problems

Maintenance schedule

Repair guides

Service intervals

Service specifications

Recommended fluids

Fault codes

Procedures

Voltage reconnection

Parts cataloged across the Generac G-Force 1000 family

Common questions