HomeEnginesGenerac GT-530

Generac GT-530 Engine

The Generac GT-530 is a 530 L 2-cylinder naturally aspirated engine rated at 3600 rpm. It powers generator sets from Generac, including the 8.1 GN. It holds 1.6 L (0.4 gal) of oil.

Also known as: Generac GT-530

530.0 L
Displacement
2
Cylinders
3600 rpm
Rated speed
1.6 L
Oil capacity

Engine specifications

Oil capacity1.6 L
Displacement530.0 L
Cylinders2
AspirationNaturally aspirated
Rated speed3600 rpm

Common problems

15
  • Wiring Error ALARM 2099
  • Voltage and Frequency Drop Excessively When Loads Are Applied
    Fix: TEST 14 - CHECK VOLTAGE AND FREQUENCY UNDER LOAD, BOTH LOW -> TEST 15 - CHECK FOR OVERLOAD CONDITION, NOT OVERLOADED -> GOOD -> IF RECONFIGURED TO LP GAS, VERIFY THAT PROPER PROCEDURE WAS FOLLOWED (REFER TO INSTALLATION MANUAL), GOOD -> OVERLOADED -> DISCONTINUE TESTING, REDUCE LOADS TO UNIT’S RATED CAPACITY, TEST 12 - CHECK STEPPER MOTOR CONTROL, GOOD -> BAD -> REPAIR OR REPLACE, LOOK FOR A SHORTED CONDITION IN A CONNECTED LOAD OR IN ONE OF THE LOAD CIRCUITS, GOOD -> TEST 7 - CHECK STATOR AC POWER WINDINGS, ENGINE CONDITION GOOD -> REPAIR OR REPLACE, BAD -> TEST 16 - CHECK ENGINE CONDITION, GOOD -> GO TO “PROBLEM 18 - ENGINE STARTS HARD AND RUNS ROUGH/LACKS POWER” SECTION 4.3
  • Unstable Voltage or Incorrect Output Which is Not Triggering a Shutdown
    Fix: TEST 1 - CHECK AC OUTPUT VOLTAGE, ERRATIC -> PROCEED TO PROBLEM 3
  • Undervoltage 1902
  • Stepper Overcurrent ALARM 2100
  • RPM Sensor ALARM 1501
  • Prolonged Over-Voltage Undervoltage 1900
  • Problem 22 – Battery is Dead Battery is Dead
    Fix: Test 45 – Check Battery and Cables
  • Problem 21 – No Low Speed Exercise No Low Speed Exercise
  • Problem 20 – Generator Will Not Exercise Generator Will Not Exercise
    Fix: Test 45 – Check Battery and Cables
  • Overspeed ALARM
    Cause: Prolonged (60 Hz on a 50 Hz unit, 72Hz on 60Hz unit) Over specified Hz for 3 seconds. Possible cause: Stepper motor/mixer body assembly issue.
  • Overloaded ALARM 2102
  • Overload Remove Load ALARM 2399
  • Low Oil Pressure ALARM
    Fix: Occurred while running The default Extended alarm for low oil pressure. Check oil level and pressure.
  • Instantaneous Undervoltage 1901

Compiled from service & troubleshooting documentation across every generator set that uses the Generac GT-530.

Service intervals

40
ItemActionHoursMonthsNotes
Oil levelCheck24 hr1 moMonthly or every 24 hours of continuous operation
Aceite del motorChange25 hrFirst service — Después del período de asentamiento de 25 horas, se recomienda utilizar el aceite 5W-20 propiedad de Generac para uso continuo.
Oil and filterChange25 hrFirst service — After first 25 hours of operation
Engine oil and filterReplace100 hr12 moFirst 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
Aceite de motor y filtro de aceiteChange200 hr24 moFirst service — Programa de mantenimiento A
Air cleanerReplace500 hr24 moEvery 2 years or 200 hours
Batería (condición, nivel de electrolito y estado de carga)Check200 hr24 moPrograma de mantenimiento A
Battery condition and chargeCheck200 hr24 moSchedule A maintenance
Complete tune-upOther500 hr24 moTo be completed by a dealer, every 2 years or 200 hours
Engine oil and oil filterReplace200 hr24 moFirst service — Schedule A (Every Two Years or 200 Hours) and Schedule B (Every Four Years or 400 Hours). Change engine oil and filter after first 25 hours. In cold weather (below 40 F / 4.4 C) or continuous hot weather (above 85 F / 29.4 C), change every year or 100 hours.
Huile à moteur et filtre à huileChange200 hr24 moFirst 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.
OilChange500 hr24 moFirst service — Every 2 years or 200 hours; change after first 8 hours then every 200 hrs/2 yrs thereafter, more often under heavy load, dust, or high temp
Oil filterChange500 hr24 moFirst service — Every 2 years or 200 hours
Óleo lubrificante e filtro de óleoChange200 hr24 moFirst 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 aceiteReplace400 hr48 moFirst service — Programa B: cada cuatro años o 400 horas.
Air cleanerClean400 hrClean or replace as necessary; R = Replace as Necessary; 400 hours
Air cleanerInspect400 hr24 moInspect and change; every 400 hours
Air filterReplace400 hr48 moSchedule B maintenance
Bougies d'allumageClean400 hr48 moNettoyer les bougies, vérifier l'écartement ou les remplacer. Calendrier A et Calendrier B.
Bujía(s)Replace400 hr48 moPrograma B: cada cuatro años o 400 horas.
BujíasReplace400 hr48 moPrograma B; limpiar, comprobar separación y sustituir
Engine air filterReplace400 hr48 moSchedule B. Emissions-critical.
Engine oil and oil filterChange400 hr48 moFirst service — Schedule B (every four years or 400 hours).
Filtre à air du moteurReplace400 hr48 moCalendrier B: tous les quatre ans ou toutes les 400 heures.
Filtro de aire del motorReplace400 hr48 moPrograma de mantenimiento B
Filtro de ar do motorReplace400 hr48 moProgramação B (4 anos ou 400 h)
Folga da válvulaAdjust400 hr48 moFirst service — Inspecionar/ajustar após as primeiras 25 h e depois a cada 400 h; Programação B; exclui 14/18 kW com motor 816 cc
Jeu des soupapesAdjust400 hrFirst service — Vérifier et régler après les 25 premières heures de fonctionnement, puis toutes les 400 heures.
Luz de válvulasAdjust400 hr48 moFirst service — Programa B; inspeccionar/ajustar cada 400 horas
Sediment trapClean400 hr48 moSchedule B maintenance
Separación de la válvulaAdjust400 hr48 moFirst service — Programa B. Inspeccione y ajuste después de las primeras 25 horas y luego cada 400 horas. No necesario en unidades 14/18 kW con motor 816 cc.
Spark plug(s)Clean400 hrReplace every 4 years or 400 hours
Spark plug(s)Inspect400 hr48 moSchedule B maintenance; clean, inspect gap, replace if necessary
Spark plug(s)Replace500 hr48 moSchedule B. Emissions-critical.
Spark plugsReplace400 hr48 moEvery Four Years or 400 Hours (Schedule B); clean, check gap, replace
Valve clearanceAdjust500 hr48 moFirst service — Schedule B; inspect/adjust valve clearance after first 25 hours of operation, then at 400 hour intervals. Where applicable; excludes units with hydraulic lifters (14 or 18 kW with 816cc engine).
Vela(s) de igniçãoReplace400 hr48 moProgramação B (4 anos ou 400 h)
Air cleanerChange500 hr24 mo2Y or 500 hours
Spark plug(s)Change500 hr24 mo2Y or 500 hours
Alternator Rotor BrushesCheck2500 hr

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

60
TypeItemValueUnitCondition
GapFolga da vela de ignição0,020pol
GapFolga da vela de ignição0,040pol
GapFolga da vela de ignição0,508mm
GapFolga da vela de ignição1,02mm
GapIgnition magneto (armature) air gap0.008-0.012inch (0.20-0.30 mm)
GapIgnition magneto air gap0.008-0.012 inch (0.20-0.30 mm)gapV-twin engines; fixed non-adjustable on single cylinder
GapMagneto gap between flywheel0.010inch
GapSeparación de electrodos de bujía (11 kW)0.030in (0.76 mm)
GapSeparación de electrodos de bujía (16/20/22 kW)0.040in (1.02 mm)
GapSeparación de electrodos de bujía (9 kW)0.020in (0.508 mm)
GapSeparación de las bujías0.508mm (0.020 pulg.)
GapSeparación de las bujías1.02mm (0.040 pulg.)
GapSpark Plug Gap0.020in (0.508 mm)9 kW (GH-426)
GapSpark Plug Gap0.030in (0.76 mm)11 kW (GTH-530)
GapSpark Plug Gap0.040in (1.02 mm)16/20/22 kW (GT-999)
GapSpark plug gap0.508mm
GapSpark plug gap0.76mm (0.030 in)8, 11, and 20kW units
GapSpark plug gap0.76 mm (0.030 inch)gap410 cc and 530 cc engines
GapSpark plug gap1.02mm (0.040 in)13, 14, 15, 16, 17kW units
GapSpark plug gap1.02 mm (0.040 inch)gap990 cc and 999 cc engines
GapSpark plug gap (10 kW)0.020in (0.508 mm)
GapSpark plug gap (11 kW)0.030in (0.76 mm)
GapSpark plug gap (14-24 kW)0.040in (1.02 mm)
GapSpark plug gap (16/20/22 kW)0.040in (1.02 mm)
GapSpark plug gap (9 kW)0.020in (0.508 mm)
GapÉcartement des électrodes des bougies d'allumage0.508mm (0,020 po)
GapÉcartement des électrodes des bougies d'allumage0.76mm (0,030 po)
GapÉcartement des électrodes des bougies d'allumage1.02mm (0,040 po)
OtherCompression Ratio GH-4108.6:1
OtherCompression Ratio GT-5309.5:1
OtherCompression Ratio GT-9909.5:1
OtherCompression Ratio GT-9999.5:1
OtherCompression difference between cylinders shall not exceed25percent
OtherCompression ratio9.5:1
OtherCylinder leak down acceptable leakage20percentregulated pressure 80 psi
OtherExercise time length (16-22 kW)5minutes
OtherExercise time length (9-11 kW)12minutes
OtherFusível do painel de controle7,5A
OtherGood starter motor maximum62Ampsstarter performance test
OtherLP fuel supply pressure10 to 12inches water column (0.36-0.43 psi)
OtherOrdem 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 repousocinco ciclos de manivela
OtherOrdem de partida (14 a 24 kW)16 s de arranque, 7 s de repouso, 16 s de arranque, 7 s de repouso, seguidos por três ciclos adicionais de 7 s de arranque e 7 s de repousocinco ciclos de manivela
OtherPerda de potência do motor por altitude3,5% a cada 304,8 m (1.000 pés) acima do nível do mar
OtherPerda de potência do motor por temperatura1% a cada 6 °C (10 °F) acima de 15 °C (60 °F)
OtherRated Horsepower @ 3,600 rpm GH-41014.8HP
OtherRated Horsepower @ 3,600 rpm GT-53018HP
OtherRated Horsepower @ 3,600 rpm GT-99032HP
OtherRated Horsepower @ 3,600 rpm GT-99936HP
OtherRedução de classificação GN vs PL10 a 20%
OtherRetardo de calentamiento con Arranque inteligente en frío30segundostemperatura ambiente por debajo de la temperatura fijada
OtherRetardo de calentamiento normal6segundostemperatura ambiente en o sobre la temperatura fijada
OtherStarter motor performance, V-twinMinimum rpm 3250; Maximum Amps 62
OtherStarter motor performance, single cylinderMinimum rpm 4500; Maximum Amps 9
OtherTamanho mínimo de tanque de PL ao converter de GN946L (250 gal)
OtherUnder-frequency shutdownbelow 55 Hz for more than 30 secondsHz
OtherUtility failure detection threshold65% of nominal (for five consecutive seconds)
OtherUtility restoration threshold80% of nominal (for 15 consecutive seconds)
PressureCylinder leak down tester regulated pressure80psiair source at least 90 psi
PressureFuel pressure LP10 to 12inches water columnrequired
PressureFuel pressure at regulator - LP10-12in water column (19-22 mm Hg)

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

FluidGradeStandardAmbientCapacityNotes
Coolant50% ethylene glycol-based long-life coolant / 50% clean, softened water37°C to 149°CNot applicable to this air-cooled 6kW model per Section 1.7 note (coolant table appears in the 24RCL doc, not this one); freezing protection to -37C, overheating protection to 149C if used
Engine oilAPI Service Class SJ, SL or better1.9 QtsEngine crankcase oil capacity including filter, approximately
Engine oil30 weight organic oil (factory fill)Units run and tested at factory prior to shipping, no break-in required
Engine oil5W-20Aceite 5W-20 propiedad de Generac para uso continuo, después del período de asentamiento de 25 horas.
Engine oil5W-20 (Generac proprietary)API Service Class SJ, SL, or better1.03 LOil 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 oil5W-30Aceite 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 oilSAE 30 above 32°F; 10W-30 between 40°F and -10°F; Synthetic 5W-30 10°F and belowAPI Service Class SJ, SL or better; use no special additives1.5 QtsOil capacity including filter
Engine oilSAE 5W-30 SyntheticAPI Service Class SJ, SL or betterDo not use special additives
Engine oilSAE 5W-30 sintéticoAPI SJ, SL o mejor1.03 l9 kW; no usar aditivos especiales
Engine oilSAE 5W-30 synthétiqueAPI classe de service SJ, SL ou supérieureHuile SAE 5W-30 synthétique pour toutes les plages de température. N'utilisez aucun additif spécial.
Engine oilSynthetic 5W-30API SJ, SL or betterFor all temperature ranges
Engine oilSynthetic SAE 5W-30API Service Class SJ, SL, or betterSynthetic SAE 5W-30 for all temperature ranges. Do not use special additives. Capacities incl. filter: approx. 1.1 qt (1.03 L) 9 kW; approx. 1.7 qt (1.6 L) 11 kW; approx. 1.9 qt (1.8 L) 16/20/22 kW.
Engine oil10W-30API SJ, SL or better-23°C to 4°CBetween 40ºF and -10ºF (4ºC and -23ºC)
Engine oilSAE 30API SJ, SL or betterabove 0°CAbove 32ºF (0ºC)
FuelGas 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.
FuelGas naturalmínimo 1000 BTU por pie cúbico (37.26 megajulios por metro cúbico)Reducciones típicas de gas natural 10-20 % respecto a LP
FuelGaz naturel37.26 mégajoules par mètre cube (1 000 BTU par pied cube) minimumTeneur en BTU minimale du gaz naturel.
FuelGaz naturel d'au moins 37,26 mégajoules par mètre cube (1 000 BTU par pied cube)NFPA 54
FuelGaz propane liquide (gazeux)93.15 mégajoules par mètre cube (2 500 BTU par pied cube) minimumCapacité de réservoir de gaz propane liquide minimum recommandée de 946 litres (250 gallons).
FuelGaz propane liquide d'au moins 93,15 mégajoules par mètre cube (2 500 BTU par pied cube)NFPA 58 / ICC IFGCRéservoir de gaz propane liquide d'une capacité minimale de 946 litres (250 gallons).
FuelLP (vapor)mínimo 2500 BTU por pie cúbico (93.15 megajulios por metro cúbico)946.0 lSe recomienda tanque de LP de 250 gal. (946 l) de tamaño mínimo si se convierte de NG a LP
FuelLP VaporNFPA 58Vapor withdrawal only. Recommended Btu content at least 2,520 Btus per cubic foot. Required fuel pressure 0.025 to 0.0305 kg/cm2 (10 to 12 inches water column); must never drop below 0.025 kg/cm2 (10 inches water column)
FuelLP vapor onlyMinimum 2,520 Btu per cubic footRequired fuel pressure 10-12 inches water column (0.36-0.43 psi)
FuelLP vapor, minimum 2,520 Btu per cubic footRequired fuel pressure 10-12 inches water column (0.36-0.43 psi)
FuelLiquid Propane (LP) VaporBtu content at least 2,520 Btus per cubic foot; pressure 10-12 inches water column (0.36-0.43 psi)Use vapor withdrawal system only
FuelLiquid Propane (LP) vapor withdrawn or pipeline Natural GasNG min 1000 BTU/cu ft (37.26 MJ/m3); LP min 2500 BTU/cu ft (93.15 MJ/m3); min LP tank size 250 gal (946 L) recommended if converting from NG
FuelLiquid Propane (vapor)2500.0 BTU/ft3 (93.15 MJ/m3) minimumVapor withdrawn; minimum tank size 250 gal (946 L) when converting from NG
FuelLiquid propane (LP) gas (vapor)at least 2,500 Btus per cubic foot (93.15 megajoules per cubic meter)250.0 gallons (946 liters)Minimum LP tank size recommended when converting from natural gas
FuelLiquid propane (LP) vaporBTU content at least 2,500 BTUs per ft3 (93.15 megajoules per m3)If converting to LP gas from NG, a minimum LP tank size of 250 gal (946 L) is recommended.
FuelNatural GasNFPA 54Recommended Btu content at least 1,000 Btus per cubic foot. Required fuel pressure 0.0127 to 0.0178 kg/cm2 (5 to 7 inches water column); must never drop below 0.0178 kg/cm2 (4 inches water column)

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

71
CodeNameMeaningSeverityAction
ADVERTENCIA DEL CARGADORADVERTENCIA DEL CARGADORIndicador LED amarillo encendido en cualquier estado.WarningComuníquese con un IASD.
AUXILIARY SHUTDOWNDesligamento auxiliarA unidade não inicia.ShutdownColoque as chaves de parada auxiliares em FECHADO (I). Apague o alarme.
BAJA PRESIÓN DEL ACEITEBAJA PRESIÓN DEL ACEITELa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownRevise el nivel de aceite y reponga si es necesario. Si el nivel de aceite es correcto, comuníquese con un IASD.
BAJA VELOCIDADBAJA VELOCIDADLa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
BATERÍA BAJABATERÍA BAJAIndicador LED amarillo encendido en cualquier estado.WarningBorre 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 PROBLEMProblema de bateríaYellow LED illuminated in any state.WarningEntre em contato com uma IASD.
Battery ProblemBattery FaultBattery condition poor or battery charger issueWarningInspect battery condition and connections. Contact IASD if needed.
CARGADOR SIN CACARGADOR SIN CAIndicador LED amarillo encendido en cualquier estado.WarningComuníquese con un IASD.
CHARGER MISSING ACCharger Missing ACLED amarelo aceso em qualquer estado.WarningEntre em contato com uma IASD.
CHARGER WARNINGCharger WarningYellow LED illuminated in any state.WarningEntre em contato com uma IASD.
CONTROLLER FAULTAnomalia no controladorFalha do controlador.ShutdownEntre em contato com uma IASD.
Controller FaultControl Module FailureInternal controller fault detectedShutdownContact IASD for assistance
DESCONEXIÓN AUXILIARDESCONEXIÓN AUXILIARLa unidad no arranca.ShutdownColoque los interruptores de desconexión auxiliar en posición CERRADA (I).
DOWNLOAD FAILUREFalha na importaçãoFalha de download.WarningVerifique o ficheiro e tente novamente.
EMERGENCY STOPParagem de emergênciaParagem de emergência ativada.ShutdownEntre em contato com uma IASD.
ERROR DE CABLEADOERROR DE CABLEADOLa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
EXERCISE SET ERRORExercise Set ErrorExercise timer setting errorWarningEntre em contato com uma IASD.
FALLA DE ARRANQUEFALLA DE ARRANQUELa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownVerifique que la válvula de cierre de la tubería de combustible esté en la posición ON. Borre la alarma. Arranque la unidad en MANUAL. Si no arranca o funciona de forma dificultosa, comuníquese con un IASD.
FIRMWARE ERROR-7Erro de firmware 7Erro de firmware.ShutdownEntre em contato com uma IASD.
FIRMWARE ERROR-9Erro de firmware 9Erro de firmware.ShutdownEntre em contato com uma IASD.
FUEL PRESSUREFuel PressureFuel pressure warningWarning
FUSE PROBLEMProblema de fusibleUnit will not start in AUTO with utility loss. (Firmware 1.11 and older only.)WarningComprobar el fusible de 7.5 A; sustituir con fusible ATO de 7.5 A si está fundido, o contactar un IASD
HIGH TEMPERATURETemperatura elevadaUnit shuts down during operation.ShutdownInspecione a ventilação ao redor do gerador, admissão, exaustão e parte traseira. Se não existirem obstruções, entre em contato com uma IASD.
High TemperatureOverheatEngine operating temperature too highShutdownInspect ventilation around generator, intake, exhaust, and rear. Ensure no obstructions present.
INSPECCIONE LA BATERÍAINSPECCIONE LA BATERÍAIndicador LED amarillo encendido en cualquier estado.WarningInspeccione la batería. Presione ENTER para borrar.
INSPECT BATTERYInspect BatteryYellow LED illuminated in any state.WarningInspect battery; press ENTER to clear.
INTERNAL FAULTInternal FaultInternal controller faultShutdownContact servicing dealer.
LOW BATTERYLow BatteryYellow LED illuminated in any state.WarningDesactivar la alarma; comprobar batería en BATTERY MENU; si GOOD contactar un IASD, si CHECK BATTERY sustituir la batería
LOW OIL PRESSUREPressão de óleo baixaUnit will not start in AUTO with utility loss.ShutdownVerifique o nível de óleo e adicione óleo se necessário. Se o nível estiver correto, entre em contato com uma IASD.
LOW VOLTS REMOVE LOADVoltaje bajo, retirar cargaUnit will not start in AUTO with utility loss.ShutdownDesactivar la alarma, retirar cargas domésticas, poner en AUTO y reanudar
Low BatteryBattery Voltage LowStarting battery voltage below acceptable levelWarningInspect battery and battery cables. Charge or replace battery if necessary.
Low Oil PressureLow Oil Level or PressureInsufficient oil pressure in engineShutdownCheck engine oil level and top up if necessary. Contact IASD if problem persists.
MISWIREMiswire / Wiring ErrorUnit will not start in AUTO with utility loss.ShutdownContactar un IASD
NINGUNANINGUNA (LED verde parpadeando)La unidad funciona en AUTO, pero no energiza la casa.InfoRevise el MLCB del generador (desconexión del generador). Si está encendido, comuníquese con un IASD.
NO ACTIVADANO ACTIVADALa unidad no arranca en AUTO con una pérdida de energía eléctrica.InfoVerifique si la pantalla indica que la unidad no está activada. Consulte Activación.
NOT ACTIVATEDNão ativadoUnit will not start in AUTO with utility loss.WarningRefer to activation section in owners manual
OVER VOLTAGEOver VoltageOvervoltage alarmShutdownContact servicing dealer.
OVERCRANKOvercrankUnit will not start in AUTO with utility loss.ShutdownVerifique se a válvula de corte da linha de combustível está ligada. Apague o alarme. Inicie em MANUAL. Se não iniciar, entre em contato com uma IASD.
OVERLOAD REMOVE LOADSobrecarga, retirar cargaUnit shuts down during operation.ShutdownDesactivar la alarma, retirar cargas domésticas, poner en AUTO y volver a poner en marcha
OVERLOAD WARNINGOverload WarningOverload warningWarningRemova as cargas domésticas do gerador.
OVERSPEEDSobrevelocidadUnit will not start in AUTO with utility loss.ShutdownEntre em contato com uma IASD.
OVERVOLTAGETensão excessivaUnit will not start in AUTO with utility loss.ShutdownEntre em contato com uma IASD.
OvercrankExtended CrankingEngine failing to start after extended crank attemptsShutdownCheck fuel supply, spark plugs, and fuel system. Contact IASD for further diagnosis.
OverloadOverload DetectedElectrical load exceeds generator capacityShutdownRemove household electrical loads from generator
OverspeedRPM OverspeedEngine running at excessive RPMShutdownContact IASD for assistance
OvervoltageOutput Voltage HighGenerator voltage exceeding nominal ratingShutdownReduce electrical load and restart. Contact IASD if issue persists.
PROBLEMA DE BATERÍAPROBLEMA DE BATERÍAIndicador LED amarillo encendido en cualquier estado.WarningComuníquese con un IASD.
PÉRDIDA DE DETECCIÓN DE RPMPÉRDIDA DE DETECCIÓN DE RPMLa unidad funcionaba, se apagó e intenta reiniciarse, o no arranca en AUTO con una pérdida de energía eléctrica.ShutdownBorre la alarma y retire del generador las cargas del hogar. Vuelva a poner en AUTO y reinicie. Si el generador no arranca, comuníquese con un IASD.
RPM SENSE LOSSRPM Sense LossUnit was running and shuts down, attempts to restartShutdownDesactivar la alarma, retirar cargas, poner en AUTO y reanudar; si no arranca contactar un IASD
RPM Sensor LossRPM Signal LossRPM sensor signal not detectedShutdownContact IASD for assistance
SERVICE AServicio AYellow LED illuminated, maintenance dueWarningRealize a manutenção SERVICE A. Pressione ENTER para apagar.
SERVICE BServicio BYellow LED illuminated, maintenance dueWarningRealize a manutenção SERVICE B. Pressione ENTER para apagar.
SERVICIO ASERVICIO AIndicador LED amarillo encendido en cualquier estado.WarningRealice el mantenimiento SERVICIO A. Presione ENTER para borrar.
SERVICIO BSERVICIO BIndicador LED amarillo encendido en cualquier estado.WarningRealice el mantenimiento SERVICIO B. Presione ENTER para borrar.
SOBRECARGA. RETIRE LA CARGASOBRECARGALa unidad se apaga durante el funcionamiento.ShutdownBorre la alarma y retire del generador las cargas del hogar. Vuelva a poner en AUTO y reinicie.
SOBRECORRIENTE DEL MOTOR DE VELOCIDAD GRADUALSOBRECORRIENTE DEL MOTOR DE VELOCIDAD GRADUALLa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
SOBREVELOCIDADSOBREVELOCIDADLa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
SOBREVOLTAJESOBREVOLTAJELa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
STEPPER OVER CURRENTStepper Over CurrentStepper motor over currentShutdownContact servicing dealer.
STEPPER OVERCURRENTStepper OvercurrentUnit will not start in AUTO with utility loss.ShutdownEntre em contato com uma IASD.
SUBVOLTAJESUBVOLTAJELa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownComuníquese con un IASD.
TEMPERATURA ALTATEMPERATURA ALTALa unidad se apaga durante el funcionamiento.ShutdownInspeccione la ventilación alrededor del generador, además de las secciones de entrada, escape y trasera. Si no hay obstrucciones, comuníquese con un IASD.
UNDER VOLTAGEUnder VoltageUndervoltage alarmShutdownContact servicing dealer.
UNDERSPEEDUnderspeedUnit will not start in AUTO with utility loss.ShutdownEntre em contato com uma IASD.
UNDERVOLTAGEUndervoltageUnit will not start in AUTO with utility loss.ShutdownEntre em contato com uma IASD.
USB WARNINGAviso de USBAviso relacionado ao dispositivo USB.WarningTente novamente com USB de melhor qualidade. Os nomes dos ficheiros no USB não podem ter mais de 8 caracteres.
UnderspeedEngine Speed Too LowEngine RPM below nominal specificationShutdownContact IASD for assistance
UndervoltageOutput Voltage LowGenerator voltage below nominal ratingShutdownReduce electrical load and restart. Contact IASD if issue persists.
VOLTIOS BAJOS. RETIRE LA CARGAVOLTIOS BAJOSLa unidad no arranca en AUTO con una pérdida de energía eléctrica.ShutdownBorre la alarma y retire del generador las cargas del hogar. Ponga en AUTO y reinicie.
WIRING ERRORWiring Error / MiswireController wiring errorShutdownEntre em contato com uma IASD.
Wiring ErrorElectrical Wiring FaultWiring configuration error detectedShutdownContact 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

12
Adjust Valve Clearance adjustment

⚠ Allow engine to cool before adjusting valve clearance.

Tools: feeler gauge, 10 mm wrench, 13 mm wrench, 14 mm wrench, 8 mm wrench, 10 mm Allen wrench, torque wrench

  1. Make sure piston is at TDC of compression stroke (both valves closed).
  2. Remove spark plug wire(s) and position away from plugs.
  3. Remove spark plug(s).
  4. Remove the four screws attaching valve cover; remove and discard gasket.
  5. Loosen rocker jam nut (10 mm wrench 9-11 kW; 13 mm wrench 16-22 kW).
  6. Turn pivot ball stud (14 mm wrench 9 kW; 8 mm wrench 11 kW; 10 mm Allen 16-22 kW) while checking clearance with feeler gauge.
  7. Hold rocker arm jam nut in place as pivot ball stud is turned.
  8. When clearance correct, hold pivot ball stud and tighten rocker arm jam nut to torque spec.
  9. Recheck valve clearance after tightening jam nut.
  10. Install new valve cover gasket.
  11. Install valve cover; tighten fasteners in cross pattern to torque spec.
  12. Install spark plugs and torque to 18 ft-lbs (25 Nm).
  13. Reattach spark plug wire to spark plug.
  14. Repeat process for other cylinder if necessary.
Adjusting GT-530 Valve Clearance adjustment

⚠ Contact dealer if uncomfortable performing this procedure or lacking proper tools

Tools: 10mm allen wrench, Feeler gauge, Torque wrench

  1. Remove spark plug wires and spark plugs
  2. Rotate the flywheel clockwise to bring the piston to Top Dead Center of compression stroke
  3. Remove the four valve cover screws and the valve cover
  4. Loosen the rocker jam nut and turn the pivot ball stud while checking clearance with a feeler gauge
  5. Set clearance to 0.002-0.004 inch (0.05-0.1 mm) and hold pivot stud while tightening jam nut to 174 in/lbs
  6. Recheck clearance after tightening
  7. Install a new valve cover gasket and reattach the valve cover
  8. Reinstall spark plugs and reattach spark plug wires
Adjusting GT-530/990/999 Valve Clearance adjustment

⚠ Check after first six months of operation

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

  1. Engine should be cool before checking
  2. Remove spark plug wires and spark plugs
  3. Rotate flywheel nut clockwise to bring piston to TDC of compression stroke
  4. Ensure engine is at 60-80°F
  5. Remove the four screws attaching the valve cover
  6. Loosen rocker jam nut, turn pivot ball stud with 10mm allen wrench while checking clearance with feeler gauge
  7. Set clearance to 0.002-0.004 inch (0.05-0.1mm)
  8. Tighten rocker arm jam nut to 174 in/lbs torque while holding pivot ball stud
  9. Recheck valve clearance
  10. Install new valve cover gasket and re-attach valve cover
  11. Install spark plugs and re-attach wires
  12. Repeat for other cylinder
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

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

Tools: feeler gauge, 10mm Allen wrench, torque wrench

  1. Ensure the engine is cool (60-80°F) before checking
  2. Remove spark plug wires and spark plugs
  3. Rotate the flywheel nut clockwise to bring the piston to Top Dead Center (both valves closed)
  4. Remove the four screws attaching the valve cover; remove and discard the rocker cover gasket
  5. Loosen the rocker jam nut; use a 10mm Allen wrench to turn the pivot ball stud while checking clearance with a feeler gauge
  6. Correct clearance is 0.002-0.004 inch (0.05-0.1 mm)
  7. Hold the pivot ball stud and tighten the rocker arm jam nut to 174 in/lbs torque
  8. Recheck valve clearance after tightening
  9. Install new valve cover gasket and re-attach valve cover, torque fasteners in a cross pattern to 4 ft/lbs
  10. Install spark plug and re-attach spark plug wire
  11. Repeat for the other cylinder
Adjusting the Fuel Regulator - 7kW (Natural Gas Only) adjustment

⚠ Do not make any unnecessary adjustments. Factory settings are correct for most applications.

Tools: frequency meter

  1. Start the generator; let it stabilize and warm up at no-load.
  2. Connect a frequency meter across the generator's AC output leads.
  3. Turn the primary adjust screw to obtain a frequency reading.
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

  1. Remova os fios das velas de ignição e remova as velas de ignição.
  2. Remova os quatro parafusos que prendem a tampa da válvula; descarte a junta.
  3. Verifique se o pistão está no TDC do seu curso de compressão.
  4. Solte a contraporca do balanceiro (C) com chave de 10 mm ou 13 mm.
  5. Gire o pino de esfera articulada (D) com chave de 14 mm ou sextavada de 10 mm e ajuste a folga.
  6. Aperte a contraporca do braço oscilante e inspecione a folga novamente.
  7. Instale a nova junta e as tampas das válvulas; aperte em padrão transversal.
  8. 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

  1. Cerrar la válvula de combustible y desconectar la batería.
  2. Retirar cable(s) de bujía y alejarlos.
  3. Retirar la(s) bujía(s).
  4. Llevar el pistón al PMS de la carrera de compresión.
  5. Retirar los cuatro tornillos de la cubierta de válvulas y desechar la junta.
  6. Aflojar la contratuerca del balancín.
  7. Girar el prisionero de bola pivote para ajustar la luz con calibre.
  8. 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

  1. Retire los hilos de las bujías y las bujías.
  2. Retire los cuatro tornillos de la cubierta de la válvula y deseche la junta.
  3. Verifique que el pistón esté en el PMS de su carrera de compresión.
  4. Suelte la contratuerca del balancín (llave 10 mm en 10 kW, 13 mm en 20 a 24 kW).
  5. Gire el espárrago del pivote (llave 14 mm en 10 kW, hexagonal 10 mm en 20 a 24 kW) ajustando la separación.
  6. Sostenga el espárrago y apriete la contratuerca del balancín.
  7. Inspeccione la separación para verificar que no cambió.
  8. Instale una junta nueva y la cubierta de la válvula; apriete en patrón cruzado.
  9. Instale las bujías y apriete a 25 Nm (18 lb-pie).
  10. Conecte los hilos de las bujías.
Check and Adjust Engine Governor (Single Cylinder Units) adjustment

Tools: Frequency meter, torque wrench

  1. Loosen the governor clamp bolt.
  2. Hold the governor lever at wide open throttle position.
  3. Rotate the governor shaft clockwise as far as it will go.
  4. Tighten the governor lever clamp bolt to 70 inch-pounds (8 N-m).
  5. Start the generator; let it stabilize and warm up at no-load.
  6. Connect a frequency meter across the generator AC output leads.
  7. Turn the primary adjust screw to obtain a frequency of 61.5 Hz.
  8. Turn the secondary adjust screw to obtain a frequency of 62.5 Hz.
Check and Adjust Ignition Magnetos (Adjusting Magneto Flywheel Gap) adjustment

Tools: 0.008-0.012 inch thickness gauge

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

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

  1. Remove the four (4) screws from the rocker cover.
  2. Remove the rocker cover and rocker cover gasket.
  3. Loosen the rocker arm jam nut.
  4. Use a 10mm allen wrench to turn the pivot ball stud.
  5. Check clearance between rocker arm and valve stem with a flat feeler gauge.
  6. Set valve clearance to 0.05-0.1mm (0.002-0.004 in.) cold.
  7. Hold pivot ball stud with allen wrench and tighten rocker arm jam nut to 174 inch pounds.
  8. Recheck valve clearance to make sure it did not change.
  9. 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

VoltagePhaseConnectionLeadsNotes
0 – c.c. (-)NOIR no 3Fil de mise à la terre normal; obligatoire si jumelé à un commutateur de transfert de gestion intelligente de l'alimentation de Generac.
23BLANCO Núm. 5Cable de señal lógica del control de transferencia
23 (White #5)ETransfer Control Signal Wire
Control system interconnectionsN1, N2, 0, 15B, 23Can be run in same conduit as AC power if length < 35 feet and all wiring rated 600V
Longueur de fil 1 à 35 m (1 à 115 pi)Calibre 18 AWGConducteurs en cuivre seulement.
Longueur de fil 35 à 56 m (115 à 185 pi)Calibre 16 AWGConducteurs en cuivre seulement.
Longueur de fil 56 à 89 m (185 à 295 pi)Calibre 14 AWGConducteurs en cuivre seulement.
Longueur de fil 89 à 140 m (295 à 460 pi)Calibre 12 AWGConducteurs en cuivre seulement.
1Connect 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, 0Battery charger in transfer switch will not be utilized in operation of the generator.
1Connect 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, 0Wire 194 changed to 15B on current model air-cooled generators.
0 VCC0NEGRO Núm. 3CC (-) 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 4Pour les commandes de transfert.
12 VCC194ROJO núm. 4CC (+) para los controles de transferencia
12 VDC194 (Red #4)DDC (+) 12 VDC for Transfer Controls
1201Battery charger AC input to generator backed-up 120VAC circuit120VAC hot, neutralConnect via wire nuts
120 V c.a.T1BLEU no 3Avec fusible 120 V c.a. pour le chargeur de la batterie; doit être branché pour que la batterie demeure chargée.
120 VACT1 (White #3)BFused 120VAC for Battery Charger
120 VCAT1AZUL Núm. 3Con fusible para el cargador de baterías (debe estar conectado para mantener la batería cargada, esté o no funcionando la unidad)
120/2401GENERATOR (STANDBY) source power cables to ATS GENERATOR supply terminalsE1, E2200A models
120/2401Non-essential customer LOAD leads to LSS switch terminalsE1, E2Load shed switch
120/2401UTILITY (NORMAL) power source cables to top of UTILITY SERVICE DISCONNECT circuit breakerN1, N2200A models
2401Transfer switch terminal lugs: connect utility source hot lines to N1 and N2; connect standby source hot lines (E1, E2) to E1 and E2; connect load lines from T1 and T2 to electrical load circuit; connect UTILITY, STANDBY and LOAD neutral lines to neutral block.N1, N2, E1, E2, T1, T2In 1-phase systems with a 2-pole transfer switch.
240 V c.a.N1 et N2JAUNE no 1 et no 2Détectent les chutes et les hausses du réseau public.
240 VACN1 & N2 (Yellow #1 & #2)ASensing for Utility Dropout and Pickup
240 VCAN1 y N2AMARILLO Núm. 1 y Núm. 2Detección de desenganche y activación del servicio público
DC0 (Black #3)CDC (-) Common Ground Wire

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

Common questions

What is the oil capacity of the Generac GT-530?

The Generac GT-530 engine has an oil capacity of 1.6 liters.

What is the displacement of the Generac GT-530?

The Generac GT-530 has a displacement of 530.0 liters with 2 cylinders.

Which generators use the Generac GT-530 engine?

The Generac GT-530 powers 1 generator set(s), including Generac 8.1 GN.

What is a common problem with the Generac GT-530 engine?

A commonly reported issue on generators using the Generac GT-530 is: Wiring Error ALARM.