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Home›Generac›Generac IQ3500

Generac IQ3500 Generator Set

The Generac IQ3500 is a 3000 kW (3500 kVA) Unleaded standby generator set powered by a iQ3500 engine. It is available at 120 V, Single-phase, 60 Hz and rated 25 A. It holds about 0.6 L (0.2 gal) of oil. Starting uses 1 battery rated 6000 CCA at 12 V. The set measures 601×457.6×552.4 mm (23.7×18.0×21.7 in) and weighs about 49.5 kg (109 lb). An integrated tank holds 10 L (2.6 gal), roughly 8.9 hours of runtime.

3000 kW
Standby
0.212 L
Displacement
0.6 L
Oil capacity
4
Document types

How to read your Generac serial & model number →

Specifications

FuelUnleaded
Frequency60.0 Hz
Standby power3000 kW
Prime power3 kW
Oil capacity0.6 L
Voltage options120 V
PhaseSingle
Rated current25 A
Circuit breaker25 A
Battery cranking6000 CCA
Battery voltage12 V
Battery quantity1
Dimensions (L×W×H)601×457×552 mm
Dry weight49 kg
Fuel tank10.0 L
Tank runtime8.9 hr

Engine

iQ3500
Oil capacity0.6 L
Displacement0.212 L
Aspiration4-stroke

Maintenance & consumables

for the iQ3500
ItemSpecCapacityPart #Interval
Air filter007634300 hr PartsGeek
Fuel filterRemplacement du filtre à carburant +—300 hr find
Oil filter—300 hr find
Belt— find
Coolant—50 hr
Coolant filter— find
Oil0.6 L005487100 hr PartsGeek

Common questions

What is the power rating of the Generac IQ3500?

The Generac IQ3500 is rated 3000 kW standby.

What engine does the Generac IQ3500 use?

The Generac IQ3500 is powered by the iQ3500 engine.

What fuel does the Generac IQ3500 use?

The Generac IQ3500 runs on Unleaded.

What is the oil capacity of the Generac IQ3500?

The None iQ3500 engine in the Generac IQ3500 has an oil capacity of 0.6 liters.

Troubleshooting

26

Fault codes

CodeMeaningRemedy
14Output Fault
008034Fault Output M
007846Output Fault
000141Accidental start-up. Disconnect spark plug wires when working on unit.Disconnect spark plug wires before working on unit.
002404Inspect Spark Arrestor ScreenInspect and clean the screen every 50 hours of operation or every season, whichever comes first.
007634(000209b) Fallecimiento. Este producto no se ha diseñado para que se utilice en aplicaciones de apoyo vital crítico. En caso de hacerlo, podría provocar la muerte o lesiones graves.
23Electrical TripCheck the system for any faults and correct them before restarting.
18Oil Level LowAdd oil to the specified level before restarting.
19OverloadReduce load or check if the generator is overloaded.
22Oil Level LowAdd oil to the specified level before restarting.
007843OUTPUT FAULT
005483Daños a los equipos y la propiedad.

Symptoms & remedies

SymptomCauseRemedy
Engine fires, but does not continue to runRotate the Off/On/Choke dial to OFF and repeat starting instructions.
Engine won't start.1. Dial turned off. 2. Out of fuel. 3. Defective spark plug. 4. Plugged fuel filter. 5. Defective or stuck Dial assembly. 6. Incorrect engine oil level. 7. Defective ignition coil. 8. Fuel cap vent OFF. 9. Carb is flooded. 10. Throttle plate closed.1. Turn on Dial. 2. Fill fuel tank. 3. Replace spark plug. 4. Replace fuel and fuel filter. 5. Contact IASD. 6. Check/fill engine oil. 7. Contact IASD. 8. Turn fuel cap vent ON. 9. Drain carb. 10. Open throttle plate (push toward back of unit).
Engine starts, then shuts down.1. Out of fuel. 2. Incorrect engine oil level. 3. Contaminated fuel. 4. Defective low oil level switch.1. Fill fuel tank. 2. Check engine oil level. 3. Contact IASD. 4. Contact IASD.
Engine will not start; or starts and runs rough.*1. Choke is stuck or left on. 2. Dirty or clogged air filter. 3. Defective or dirty spark plug. 4. Dirty fuel filter. 5. Dirty or gummed up carburetor. 6. Unit not warmed up. 7. Spark arrestor clogged.1. Turn choke off. 2. Clean or replace air filter. 3. Replace spark plug. 4. Replace fuel and fuel filter. 5. Clean carburetor. 6. Gradually adjust Dial and reduce choke until engine runs smoothly in RUN position. 7. Clean spark arrestor.
No AC output.1. Generator is overloaded. 2. Inverter module is overheated. 3. Short circuit in electrical device. 4. Defective inverter assembly.1. Disconnect all loads. Shut down generator t
No AC OutputBAD REPAIR OR REPLACE COMPONENT, BAD REPAIR OR REPLACE WIREREPLACE INVERTER MODULE
No DC Output (iX Units Only)REPLACE INVERTER MODULE
Overload Light Is OnDISCONNECT LOAD, RESTART ENGINE AND CHECK AC OUTPUT AGAIN. (iX Units) DISCONNECT LOAD, PRESS AND HOLD RESET BUTTON, THEN RELEASE. IF OVERLOAD LIGHT GOES OUT, LOAD IS TO MUCH FOR THE UNIT. (iQ2000)
Engine Will Not Pull StartNOTHING FOUND, BAD REPLACE COMPONENT, VISUALLY INSPECT FOR OBSTRUCTIONS THAT WOULD CAUSE BINDING OF THE RECOIL ONCE INSTALLED
Flex Power/Mode Feature is Not RespondingREPLACE INVERTER MODULE, REPLACE SWITCH, TEST FLEX POWER/MODE SWITCH
Engine Will Not StartREPLACE CARBURETOR, REPLACE FUEL PUMP, REPAIR OR REPLACE STATOR, REPLACE IGNITION WINDING
Engine Hunts / Erratic Idle or Will Not Come Up to SpeedProblem 7
Unit Shuts Down for Low OilProblem 8
LED Display INOPReplace LED MODULE

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

Parts

131
Part #DescriptionQtySystem
000399SAE 301Oil PartsGeek
002404Air filterSpark arrestor screen PartsGeek
005482Service Warranty1Warranty PartsGeek
005483Main Unit1Owner's manual PartsGeek
005484Oil Funnel1Owners manual PartsGeek
005485Oil Funnel1Oil funnel PartsGeek
005486Air FilterAir filter PartsGeek
007843Tool Kit2Tool kit PartsGeek
007846Voyant d’alimentation c.a.1Warranty PartsGeek
007851Port USB 1A/2,1 A, 5 VCC1Electrical PartsGeek
007852Prises parallèles1Electrical PartsGeek
007853Disjoncteurs CA1Electrical PartsGeek
007856Bouchon du réservoir de carburant1Fuel PartsGeek
007858Filtre à airAir filter PartsGeek
007861Batterie1Battery PartsGeek
007864Bougie1Spark plug PartsGeek
009207Spark plugSpark plug PartsGeek
022304WASHER, FLAT 13X22Washer PartsGeek
048031BCLAMP, HOSE, 094Clamp PartsGeek
067989NUT, M84Nut PartsGeek
070264WASHER, FLAT, M10X41Washer PartsGeek
0B1214BOLT, M8X455Bolt PartsGeek
0D4968OUTLET 20A 120V DPLX2Outlet PartsGeek
0D4999PIN, COTTER2Pin PartsGeek
0E9470BOLT, M8X164Bolt PartsGeek
0E9507BBOLT, M8X252Bolt PartsGeek
0E9507CBOLT, M8X204Bolt PartsGeek
0G5442SnapButton1Button PartsGeek
0G8321METER, HOUR1Meter PartsGeek
0G8382SCREW, PAN, M5 X 168Bolt PartsGeek
0G84420107NUT, M104Nut PartsGeek
0G84420194BOLT, M6X121Bolt PartsGeek
0G84420272NUT, M61Nut PartsGeek
0G8442CENGINE, 389cc1Engine PartsGeek
0G8442C113GRIP, HANDLE1Handle PartsGeek
0G8542BRACKET, MUFFLER1Bracket PartsGeek
0G8758OUTLET 30A 120/250V SPCGR1Outlet PartsGeek
0G9028GASKET, EXH, CYLNDR1Gasket PartsGeek
0G9391COVER, OUTLET1Cover PartsGeek
0G9392COVER, OUTLET2Cover PartsGeek
0G9756COVER, BACK PANEL1Cover PartsGeek
0G9757AHOSE, FUEL, 08X551Hose PartsGeek
0G9757BHOSE, FUEL, 08X801Hose PartsGeek
0G9911SWITCH, ON/OFF RED-ROTARY1Switch PartsGeek
0G9914FILTER, FUEL1Filter PartsGeek kuduparts $8.00
0H0204PIN, AXLE2Pin PartsGeek
0H0265CBREAKER, CIRCUIT, 20A2Breaker PartsGeek
0H0265EBREAKER, CIRCUIT, 30A2Breaker PartsGeek
0H0919BRUSH, ALTERNATOR1Brush PartsGeek
0H0958CAP, FUEL1Cap PartsGeek
0H12810104BOLT, M6X1854Bolt PartsGeek
0H1326FILTER, FUEL1Filter Amazon eBay $7.99 PartsGeek
0H1411BRUBBER, FUEL TANK4Rubber PartsGeek
0H1610ALINING, ANTI-CRUSH4Lining PartsGeek
0H1780BOLT, CURVED HEAD, M8X406Bolt PartsGeek
0H1781BOLT, CARRIAGE HEAD M8XX462Bolt PartsGeek
0H1782NUT, LOCKING CAP, M89Nut PartsGeek
0H1783MOUNT, RUBBER VIB4Mount PartsGeek
0H2579BAVR1Avr PartsGeek FridayParts $20.69
0H3049COVER, GEN-END1Cover PartsGeek
0H7510A0SRVTANK, FUEL, 7 GAL1Tank PartsGeek
0H9005METER, FUEL1Meter PartsGeek
0H91980158BOLT, FLANGE, M5X2202Bolt PartsGeek
0H91980171HOUSING, REAR BEARING1Housing PartsGeek
0H9749AST03PANEL RAIL BACK1Panel PartsGeek
0H97560ST15HANDLE1Handle PartsGeek
0H9760CAP, END1Cap PartsGeek
0H9761ALTERNATOR SCROLL1Scroll PartsGeek
0H9763AMUFFLER1Muffler PartsGeek
0H97670ST15BRACKET, HANDLE1Bracket PartsGeek
0H9775BPANEL ASSY., CONTROL1Panel PartsGeek
0J00620100BOLT, M5X101Bolt PartsGeek
0J00620106Spark Plug1Spark plug Amazon eBay $18.49 PartsGeek
0J0974SHUT-OFF VALVE, FUEL1Valve PartsGeek
0J35220156BOLT, M6X201Bolt PartsGeek
0J35220161NUT, M82Nut PartsGeek
0J35220173CLAMP, 0121Clamp PartsGeek
0J35220174CLAMP, 0101Clamp PartsGeek
0J4535AMANIFOLD, EXHAUST1Manifold PartsGeek
0J4536FACE PLATE, CNTRL PNL ASSY.1Plate PartsGeek
0J4691GASKET, EXH., MUFFLER1Gasket PartsGeek
0J47870118WASHER, FLAT 6X0.81Washer PartsGeek
0J4967BOLT, M5X126Bolt PartsGeek
0J4968BOLT, M5X163Bolt PartsGeek
0J6072TERMINAL1Terminal PartsGeek
0J7921ROLL OVER VALVE1Valve PartsGeek
0J86620100FRAME1Frame PartsGeek
0J86620103BOLT, M10X2751Bolt PartsGeek
0J86620104BAFFLE1Baffle PartsGeek
0J86620108NUT, M46Nut PartsGeek
0K0091HOSE FORMED ROV-AIRBOX1Hose PartsGeek
0K0092WIRE ASSY., GRND1Wire PartsGeek
0K0093WASHER, SPECIAL LOCK1Washer PartsGeek
0K0094NUT, M61Nut PartsGeek
0K0097FRAME, BENT FOOT2Frame PartsGeek
0K0098NUT, M84Nut PartsGeek
0K0099FOOT, RUBBER2Foot PartsGeek
0K0100BOLT, M6X282Bolt PartsGeek
0K0105NUT, M62Nut PartsGeek
0K1291ALTERNATOR ASSY.1Alternator PartsGeek
0K6011WHEEL2Wheel PartsGeek
10000033207pieza Nº 10000033207 Rev. A1Spark plug PartsGeek
10000038386Battery Type: Lead Acid (12V DC, 6 Ah)1Battery PartsGeek
006806-0Scheduled Maintenance KitService part / kit Amazon eBay PartsGeek
007634AVERTISSEMENTService part / kit PartsGeek
007841Commutateur de fonctionnement au ralenti1Service part / kit PartsGeek
007842Toma de corriente de 120 V, 30 A (NEMA L5-30R)1Service part / kit PartsGeek
007844Toma de corriente de 120 V, 20 A1Service part / kit PartsGeek
007845Avertissement de surcharge1Service part / kit PartsGeek
007847Oil filter1Service part / kit PartsGeek
007848Commutateur de mise à l’arrêt/mise en marche/commande d’étrangleur1Service part / kit PartsGeek
007849Commutateur de démarrage1Service part / kit PartsGeek
007850Système de commande intelligent du moteur (ESC)1Service part / kit PartsGeek
007854Emplacement de la mise à la terre1Service part / kit PartsGeek
007855Lanceur à rappel1Service part / kit PartsGeek
007857Poignée1Service part / kit PartsGeek
007859Silencieux1Service part / kit PartsGeek
007860Panneau de commande1Service part / kit PartsGeek
007862Vidange d'huile1Service part / kit PartsGeek
007863Bouchon de remplissage d'huile1Service part / kit PartsGeek
007865Carburateur1Service part / kit PartsGeek
0H97480ST03FRAME, RAIL1Service part / kit PartsGeek
696471068528Transfer Switch Model 6852Service part / kit PartsGeek
696471068535Transfer Switch Model 6853Service part / kit PartsGeek
696471071481Transfer Switch Model 9854Service part / kit PartsGeek
696471071498Transfer Switch Model 9855Service part / kit PartsGeek
7129-0UPC: 696471072716 (50-State/CSA)1Service part / kit PartsGeek
7668-0UPC: 696471073102 (50-State/CSA)1Service part / kit PartsGeek
96471068542Transfer Switch Model 6854Service part / kit PartsGeek
A0001920610-BOperator’s Manual for Power WasherService part / kit PartsGeek
G006806-0Scheduled Maintenance KitService part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h

Available documents

Brochure — 201901199-soccer-lighting-case-study (Generac)Brochure — 7723-iq3500-cosense-portable-generator-spec-sheet (Generac)Operator's manual — 10000016701-(1) (Generac)Operator's manual — iq3500-spec-sheet (Generac)Operator's manual — iq3500-spec-sheet 10000016701 (Generac)Owner's manual — 10000033207-(1) (Generac)Owner's manual — 7127-iq3500-portable-generator-owners-manual (Generac)Owner's manual — 7723-iq3500-cosense-portable-generator-owners-manual (Generac)Service manual — Generac GP-i GP-iQ iQ and iX Series Inverter Service Manaul 0H5039 (Generac)