Why generators show "engine does not start": 156 documented causes and brand-specific fixes, compiled across 18 manufacturers.
Fuel filter clogged
2 brands- MQ Power: Clean or change fuel filter
- Westerbeke: Clean or renew
Actuator leads not connected or shorted.
2 brands- Kohler: Check and correct actuator wiring.
Clogged fuel filter
2 brandsGenerator set master switch not in the AUTO position.
2 brands- Kohler: Move the generator set master switch to the AUTO position.
- Spectrum: Move the generator set master switch to the AUTO position.
Engine starting battery connections or generator set problem.
2 brands- Kohler: Check the engine starting battery connections and troubleshoot the generator set. See the generator set manuals.
- Spectrum: Check the engine starting battery connections and troubleshoot the generator set. See the generator set manuals.
Accessory board problem.
2 brands- Kohler: Troubleshoot the accessory board. See Section 5.12.
- Spectrum: Remove the Accessory board and perform the engine start test procedure in Section 5.8. If the controller's engine start contacts operate correctly, troubleshoot the Accessory Board. See Section 5.11.
Fuel tank empty
2 brands- Cummins/Onan: Check fuel supply system
- Honda: Fill fuel tank
No 12 Volts DC present at electric fuel pump and anti-dieseling solenoid
1 brand- Kohler: Replace circuit board (K2 relay defective)
K4 relay LED not lit
1 brand- Kohler: Replace circuit board (Defective K4 relay)
Local and remote start/stop switches do not function properly
1 brand- Kohler: Replace defective start/stop switch
Engine fault (fuel supply, spark plug, ignition system etc.)
1 brand- Kohler: Check fuel supply, spark plug, ignition system etc.
Circuit Breaker is tripped or DC Circuit Protector has opened the circuit.
1 brand- Honda: Reset the Circuit Breaker or replace the DC Circuit Protector.
Air in the fuel system?
1 brand- MQ Power: Bleed the system