The Auto-Off (unspecified model) is a generator-set controller. It is used on generator sets from Generac, including the 7.5 kW PowerPact.
| Symptom | Cause | Remedy |
|---|---|---|
| Engine cranks but will not start. | 1. Out of fuel. 2. Defective fuel solenoid (FS). 3. Defective spark plug(s). 4. Valve clearance out of adjustment. 5. In cold weather condition. | 1. Replenish fuel / Turn on fuel valve. 2. * 3. Clean, re-gap or replace plug(s). 4. Reset valve clearance. 5. Install recommended cold weather kit. |
| Engine starts hard and runs rough. | 1. Air cleaner plugged or damaged. 2. Defective spark plug(s). 3. Fuel pressure incorrect. 4. Fuel selector in wrong position. | 1. Check / replace air cleaner. 2. Clean, re-gap or replace plug(s). 3. Confirm fuel pressure to regulator is 10–12 in. water column (19-22 mm mercury) for LP, and 5–7 in. water column (9-13 mm mercury) for natural gas. 4. Turn fuel conversion valve to correct position. |
| Engine will not crank. | 1. Fuse blown. 2. Loose, corroded or defective battery cables. 3. Defective starter contact. 4. Defective starter motor. 5. Dead battery. | 1. Correct short circuit condition by replacing 7.5 Amp fuse in generator control panel. 2. Tighten, clean or replace as necessary.* 3. *See #2. 4. *See #2. 5. Charge or replace battery. |
| Generator is set to OFF, but the engine continues to run. | 1. Controller wired incorrectly 2. Defective control board. | 1. Repair wiring.* 2. Replace control panel* |
| No AC output from generator. | 1. Main line circuit breaker is in the OFF (or OPEN) position. 2. Generator internal failure. | 1. Reset circuit breaker to ON (or CLOSED). 2. * |
| No transfer to standby after utility source failure. | 1. Main line circuit breaker is in the OFF (or OPEN) position. 2. Defective transfer switch coil. 3. Defective transfer relay. 4. Transfer relay circuit open. 5. Defective control logic board. | 1. Reset circuit breaker to ON (or CLOSED). 2. * 3. * 4. * 5. * |
| Unit consumes large amounts of oil. | 1. Engine overfilled with oil. 2. Engine breather defective. 3. Improper type or viscosity of oil. 4. Damaged gasket, seal or hose. | 1. Adjust oil to proper level. 2. * 3. See Engine Oil Requirements. 4. Check for oil leaks. |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.