Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 45 kW |
| Controller | Engine Circuit Board |
| Voltage options | 120/240 V |
| Circuit breaker | [30, 20] A |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | find | |||
| Oil filter | — | find | |||
| Belt | — | find | |||
| Coolant | — | ||||
| Oil | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Generac Q?
The Generac Q is rated 45 kW standby.
What engine does the Generac Q use?
The Generac Q is powered by the 2.4L engine.
Troubleshooting
66Fault codes
| Code | Meaning | Remedy |
|---|---|---|
| 9202-1 | Bottom out | |
| 9203-1 | Bottom out | |
| 9204-1 | Bottom out | |
| 9205-1 | Bottom out | Out-the-side | |
| 9206-1 | Bottom out | Out-the-side | |
| 9207-1 | NP 6600 120/240 55/27 60 3600 | 2300 | Bottom out |Out-the-side| 89405 | |
| 9290-2 | Bottom out | Bottom out | |
| 9509-2 | 6600 | |
| 9592-1 | 5500 120/240 Bottom out Universal | |
| 9592-2 | 5500 | |
| 9593-1 | 7000 120/240 Bottom out Universal | |
| 9593-2 | 7000 120/240 Bottom out | Universal | |
| 9600-0 | NP 6600 120/240 55/27 60 3600 | 2700 | Bottom out | Universal 92116 | |
| 9600-1 | 6600 120/240 Bottom out Universal | |
| 9600-2 | 6600 | |
| 9677-1 | 7200 120/240 Bottom out Universal | |
| 9677-2 | 7000 120/240 Bottom out Universal | |
| 9677-3 | Q 7000 120/240 58/29 60 3600 | 2570 | Bottom out | Universal 92116 | |
| 9677-4 | Q 7000 120/240 58/29 60 3600 | 2570 | Bottom out | Universal 92116 | |
| 9712-0 | NP 5000 120/240 41/20 60 3600 | 2751 Bottom out | Universal 92116 | |
| 9712-1 | NP 5000 120/240 41/20 60 3600 | 2751 Bottom out | Universal 92116 | |
| 9734-1 | NP 6600 120/240 55/27 60 3600 | 2700 | Bottom out | Universal 92116 | |
| 9735-1 | Q 5500 120/240 46/23 60 3600 | 2570 | Bottom out | Universal 92116 | |
| 9736-1 | Q 7000 120/240 58/29 60 3600 | 2570 | Bottom out | |
| LOP | Low Oil Pressure | |
| HTO | High Oil Temperature | |
| Safety-001 | Not stated | Not stated |
| Safety 001 | Not stated |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine won’t crank. | 1. 15 amp fuse blown. 2. Loose or corroded or defective battery cables. 3. Defective starter contactor. 4. Defective starter motor. 5. Dead or Defective Battery. 6. 5 amp fuse blown. | 1. Replace fuse. 2. Tighten, clean or replace battery cables as necessary. 3. Replace contactor.* 4. Replace starter motor.* 5. Remove, change or replace battery. 6. Replace fuse.* |
| Engine cranks but won't start | 1. Out of fuel. 2. Fuel solenoid (FS) is defective 3. Open Wire #14A from Engine Control circuit board. 4. Spark plugs defective. 5. Door on tank not closed. | 1. Replenish fuel. 2. Replace solenoid.* 3. Reconnect wire. 4. Clean, regap or replace plugs. 5. Close door on tank. |
| Engine starts hard, runs rough. | 1. Flame arrestor (air cleaner) plugged or damaged. 2. Plugged fuel line. 3. Defective spark plugs. 4. Fuel pressure incorrect. | 1. Clean or replace as needed. 2. Unclog fuel line. 3. Clean, regap or replace plugs. 4. Confirm fuel pressure to regulator is as recommended in SPECIFICATIONS. |
| Engine oil level is low. | Check oil and add oil as needed. | |
| Engine is overheated. | Check cooling system for leaks. | |
| Defective Low Oil Pressure Switch | Replace switch.* | |
| Defective Coolant Temperature Switch | Replace switch.* | |
| Defective Control Module circuit board. | Replace board.* | |
| Coolant Level is Low. | Repair leak - Add coolant. | |
| Defective AUTO/OFF/MANUAL switch | Replace switch.* | |
| Open/disconnected wire #15A between AUTO/OFF/MANUAL switch and Control Module circuit board. | Reconnect/close wire. | |
| Engine starts then shuts down. | *Contact the nearest Authorized Dealer for assistance. | |
| AUTO/OFF/MANUAL Switch at OFF, engine continues to run | 1. Reset to ON or CLOSED. 2. Reset and replace, if necessary. | |
| Transfer switch set to NORMAL position | Set to GENERATOR position. | |
| Generator internal failure. | * | |
| Thermal circuit breaker open. | Auto-reset - Wait 5 min. and attempt restart. | |
| Defective Control Module circuit board | Replace board.* | |
| No AC output from generator. | 1. Reset to ON or CLOSED. 2. Reset and replace, if necessary. 3. Set to GENERATOR position. 4. Auto-reset - Wait 5 min. and attempt restart. | |
| Engine starts hard, runs rough | 1. Flame arrestor (air cleaner) plugged or damaged. | 1. Clean or replace as needed. |
| Engine starts then shuts down | 2. Plugged fuel line. 3. Defective spark plugs. 4. Fuel pressure incorrect. | 2. Unclog fuel line. 3. Clean, regap or replace plugs. 4. Confirm fuel pressure to regulator is as recommended in SPECIFICATIONS. |
| Engine oil level is low | 1. Engine starts hard, runs rough. | 1. Check oil and add oil as needed. |
| Engine is overheated | 2. Engine starts then shuts down. | 2. Check cooling system for leaks. |
| Coolant Level is Low | 7. Defective Control Module circuit board. | 6. Repair leak - Add coolant. |
| Defective Low Coolant Level Switch | 7. Coolant Level is Low. | 7. Replace Switch. |
| No AC output from generator | 1. Check main line circuit breaker. 2. Check circuit breaker & fuses. 3. Transfer switch set to NORMAL position 4. Generator internal failure. 5. Thermal circuit breaker open. | 1. Reset to ON or CLOSED. 2. Reset and replace, if necessary. 3. Set to GENERATOR position. 4. * 5. Auto-reset - Wait 5 min. and attempt restart. |
| Engine does not start | Low coolant level | Check and refill engine coolant to proper level |
| Generator produces no power | Overcrank shutdown | Allow the engine to cool down before attempting to start again |
| Engine RPM is erratic | RPM sensor loss | Check and replace RPM sensor if necessary |
| AUTO/OFF/MANUAL Switch at OFF, engine continues to run. | 1. Defective AUTO/OFF/MANUAL switch 2. Open/disconnected wire #15A between AUTO/OFF/MANUAL switch and Control Module circuit board. | |
| Engine oil level is low, engine is overheated, defective Low Oil Pressure Switch, defective Coolant Temperature Switch, defective Control Module circuit board, coolant level is low, defective Low Coolant Level Switch. | 1. Check oil and add oil as needed. 2. Check cooling system for leaks. 3. Replace switch.* 4. Replace switch.* 5. Replace board.* 6. Repair leak - Add coolant. 7. Replace Switch.* | |
| NO-LOAD VOLTAGE & FREQUENCY GOOD | ZERO VOLTS NO-LOAD FREQUENCY LOW OR ZERO VOLTAGE & BOTH HIGH RESIDUAL VOLTS FREQUENCY OR LOW GOOD | GO TO PROBLEM 1 GO TO PROBLEM 2 GO TO PROBLEM 3 GO TO PROBLEM 4 |
| FREQUENCY GOOD BUT VOLTAGE LOW OR RESIDUAL | TEST 2- CHECK & ADJUST ENGINE GOVERNOR GO TO TEST 6 GO TO TEST 7 | |
| FREQUENCY AND VOLTAGE BOTH READ ZERO | TEST 14- TEST 13- CHECK MAIN CIRCUIT BREAKERS MAIN CIRCUIT BREAKERS GOOD OPEN BAD CLOSE MAIN BREAKER(S) REPLACE BAD BREAKER(S) GO TO TEST 12 | |
| EXCESSIVE VOLTAGE/FREQUENCY DROOP WHEN LOAD IS APPLIED | TEST 16- CHECK LOAD WATTS & AMPERAGE TEST 15- CHECK LOAD VOLTAGE NOT OVERLOADED & FREQUENCY ; GOOD OVERLOADED END TEST | |
| PRIMING FUNCTION DOES NOT WORK | REDUCE LOAD TEST 17- CHECK ENGINE POWER TEST 19- TEST 18- TRY ENGINE STILL CRANKING THE CRANKS WON'T sen PRIMER ENGINE NORMALLY PRIME SWITCH GO TO PROBLEM 6 | |
| ENGINE WILL NOT CRANK | TEST 21- CHECK 15 AMP FUSE GOOD TEST 22- CHECK BATTERY & CABLES FUSE BAD REPLACE FUSE RECHARGE OR REPLACE BATTERY CLEAN, REPAIR OR REPLACE BAD CABLE(S) TEST 23- CHECK TEST 24- CHECK POWER SUPPLY START-STOP TO ENGINE CIRCUIT BOARD GOOD BAD CHECK WIRING AND REPLACE WIRE CONNECTIONS. DEFECTIVE REPAIR, RECONNECT SWITCH OR REPLACE BAD WIRES AS REQUIRED. TEST 26- CHECK STARTER CONTACTOR TEST 25- CHECK POWER SUPPLY TO WIRE 56 GOOD REPLACE ENGINE CONTROLLER CIRCUIT BOARD ; STARTER CONTACTOR BAD GOOD TEST 27- CHECK REPLACE STARTER MOTOR IF DEFECTIVE STARTER MOTOR | |
| ENGINE STARTS HARD AND RUNS ROUGH | TEST 32- CHECK IGNITION SPARK TEST 33- CHECK ENGINE MISS IS APPARENT BAD CLEAN & REGAP OR REPLACE SPARK PLUG TEST 35- TEST IGNITION SYSTEM TEST 34- CHECK IGNITION POWER SUPPLY BAD REPLACE ENGINE CIRCUIT BOARD TEST 37- CHECK CHOKE OPERATION TEST 36- CHECK CARBURETION GOOD ENGINE RUNS OK NOW BAD STOP TESTS ADJUST, REPAIR OR REPLACE AS NECESSARY | |
| Engine Starts and Then Shuts Down | OIL LEVEL LOW | REPLENISH OIL |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 1.5L | Engine | 1 | Engine | PartsGeek |
| 63709 | Plunger Bushing | 1 | Bushings | PartsGeek |
| 0K8624-D | 22/27 kW (2.4 L) | 1 | Service part / kit | PartsGeek |
| DSE7310 | Control Panel | Service 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.
Available documents
Owner's manual — 0F3527A (Generac)Owner's manual — 0F3608 (Generac)Owner's manual — 0F7911 (1) (Generac)Owner's manual — 0F7911 (Generac)Owner's manual — 0G0201 (Generac)Owner's manual — 0G0201A (Generac)Owner's manual — 0G0202 (Generac)Owner's manual — 0G0239 (Generac)Owner's manual — 0G3660 (Generac)Service manual — Generac IM-NP-Q (Generac)