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36 Generac
®
Power Systems, Inc.
Appendix 1 – Troubleshooting
QUIETPACT™ 65D Recreational Vehicle Generator
TROUBLESHOOTING GUIDE
PROBLEM CAUSE CORRECTION
The engine will not crank. 1. System control fuse blown 1. Replace fuse.
2. Loose corroded or defective 2. Tighten, clean, or replace,
battery cables as necessary.
3. Defective engine Start/Stop 3. Replace Start/Stop switch.
switch
4. Defective starter contactor 4. Replace contactor.
5. Defective starter motor 5. Replace starter motor.
6. Low or defective battery 6. Charge or replace battery.
7. Defective engine control board 7. Replace control board.
The engine cranks but 1. Vehicle fuel shutoff valve closed 1. Open valve, if so equipped.
will not start. 2. Out of fuel 2. Replenish fuel.
3. Defective fuel solenoid (FS) 3. Replace solenoid.
4. Defective fuel pump (FP) 4. Repair or replace fuel pump.
5. Open #14 wire from 5. Check connections and
engine control board insulation of #14 wires.
6. Plugged fuel filter or fuel line 6. Clean or replace fuel filter or line.
7. Engine mechanical parts failure 7. Repair or replace parts.
8. Defective engine control board 8. Replace control board.
The engine starts hard 1. Plugged or damaged 1. Check, clean, or replace, as needed.
and runs rough. air filter
2. Defective fuel pump (FP) 2. Repair or replace fuel pump.
3. Plugged fuel filter or fuel line 3. Clean or replace fuel filter or line.
4. Water in fuel 4. Drain fuel system and refill.
5. Improper preheat 5. Preheat unit.
The engine starts, but shuts 1. Low engine oil level 1. Check oil and add oil, as needed.
down when the Start/Stop 2. Overheated engine 2. Check cooling system for leaks.
switch is released. 3. Defective Start/Stop Switch 3. Disconnect Remote Harness
on panel or remote Start/Stop Check/Replace Start/Stop Switch
4. Defective low-oil 4. Replace pressure switch.
pressure switch
5. Defective high-coolant 5. Replace temperature switch.
temperature switch
6. No AC output 6. Contact a Generac Authorized
Service Dealer
7. Defective engine control board 7. Replace control board.
The Start/Stop switch is 1. Defective Start/Stop switch 1. Replace switch.
set to Stop, but the engine 2. Open/Disconnected #18 wire 2. Reconnect or close wire.
continues to run. between Start/Stop switch
and engine control board
3. Open/Disconnected #0 wire 3. Reconnect or close wire.
between Start/Stop switch
and engine control board
4. Defective engine control board 4. Replace control board.
There is no AC output from 1. Main-line circuit breaker open 1. Reset line breaker
the generator. to ON (or closed).
2. Fault with vehicle circuit 2. Reset and replace, if necessary.
breaker and/or fuses
3. Generator internal failure 3. Contact a Generac Authorized
Service Dealer.