Why generators show "engine stops unexpectedly": 23 documented causes and brand-specific fixes, compiled across 11 manufacturers.
Fuel tank empty.
4 brands- Continental: Refill.
- Cummins/Onan: Fill with fresh fuel.; Refill.
- Doosan: Refill. Check the ignition system. Repair or replace parts necessary.
- generatorpartspro: Refill, Water temperature high. Add water.
Fuel tank empty
2 brands- Cummins/Onan: Fill with fresh fuel; Refill
- Doosan: Refill
Empty fuel tank. Defective ignition system. Fuel pump failure.
2 brands- Garretson: Refill. Check the ignition system. Repair or replace as needed. See that the STOP button lead is not grounded. Repair or replace.
- NEC: Refill. Check the ignition system. Repair or replace as needed. See that the STOP button lead is not grounded. Repair or replace.
Empty fuel tank.
1 brand- Cummins/Onan: Refill fuel tank as often as needed to prevent running out of fuel.; Refill.
Fuel tank empty. Defective ignition.
1 brand- Cummins/Onan: Fill with fresh fuel. Check ignition system.; Réfill. Check the ignition system. Repair or replace parts necessary.
Fuel tank empty, Fuel pump failure, High water temperature, Defective ignition
1 brand- Cummins/Onan: Refill, Repair or replace, See symptoms for engine overheating, Check the ignition system. Repair or replace parts necessary
Empty fuel tank. Defective ignition system.
1 brand- Cummins/Onan: Refill. Check the ignition system. Re- pair or replace as needed. See that the STOP button lead is not grounded.; Refill. Check the ignition system. Repair or replace as needed. See that the STOP button lead is not grounded.
Empty fuel tank, Defective ignition system. Fuel pump failure.
1 brand- Cummins/Onan: Refill. Check the ignition system. Repair or replace as needed. See that the STOP button lead is not grounded.
Fuel tank empty, Transfer Pump failure, Safety switch operated (where used)
1 brand- Cummins/Onan: Refill, Repair or replace, Correct the overheating or lubrication failure. Press reset switch
Empty fuel tank. Refill. Check the ignition system. Repair or replace as needed. See that the STOP button lead is not 5 founded. Defective ignition system. Fuel pump idilure. Repair or replace.
1 brandFuel tank empty, Defective ignition, Dull metallic thud if not bad may disappear after few minutes operation if bad increases with load
1 brand- Cummins/Onan: Refill fuel tank, Check and repair or replace parts of ignition system as necessary, Replace unless one of the next two remedies permanently corrects trouble
Out of fuel
1 brand- Allis-Chalmers: 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts.; 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts. 4. Replace inoperative parts.
Restricted fuel supply
1 brand- Allis-Chalmers: 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts.; 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts. 4. Replace inoperative parts.
Broken or loose fuel lines
1 brand- Allis-Chalmers: 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts.; 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts. 4. Replace inoperative parts.
Fuel feed (transfer) pump or fuel injection pump inoperative
1 brand- Allis-Chalmers: 1. Fill fuel tank with specified fuel and prime the fuel system. 2. Check fuel system. 3. Correct or replace affected parts. 4. Replace inoperative parts.