The Auto-Off (unspecified model) is a generator-set controller. It is used on generator sets from Generac, including the 7.5 kW PowerPact.
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| BATTERY PROBLEM | Control panel indicates battery problem. | Check for additional information. | Contact Independent Authorized Service Dealer. |
| BATTERY PROBLEM | Yellow LED illuminated in any state | Check the screen for additional information | Contact Independent Authorized Service Dealer |
| BREAK-IN MAINTENANCE DUE | Control panel indicates break-in maintenance due | Check the screen for additional information | Perform |
| Break-In Maintenance Due | Control panel indicates break-in maintenance due. | Check for additional information. | Perform break-in maintenance. Clear maintenance due light. |
| CHARGER PROBLEM | Control panel indicates charging problem. | Check for additional information. | Contact Independent Authorized Service Dealer. |
| CHARGER WARNING | Yellow LED illuminated in any state | Check the screen for additional information | Contact Independent Authorized Service Dealer |
| HIGH TEMPERATURE | Unit shuts down during operation | Check the LED's / Screen for alarms | Check ventilation around the generator, intake, exhaust and rear of generator. If no obstructions exist, contact an Independent Authorized Service Dealer |
| HIGH TEMPERATURE | Unit shuts down during operation. — LED: RED | Check the LED’s / Screen for alarms. | Check ventilation around the generator, intake, exhaust and rear of generator. If no obstruction, contact an Independent Authorized Service Dealer. |
| LOW OIL PRESSURE | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Check oil level / add oil per Owners Manual. If oil level is correct, contact an Independent Authorized Service Dealer |
| LOW OIL PRESSURE | Unit will not start in AUTO with utility loss. — LED: RED | Check the LED’s / Screen for alarms. | Check oil level. Add oil per Engine Oil Requirements. If oil level is correct, contact an Independent Authorized Service Dealer. |
| MISWIRE | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Contact Independent Authorized Service Dealer |
| NO LEDs LIT | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Check ATO 7.5 Amp ATO® fuse. Replace with same type fuse if bad. Contact Independent Authorized Service Dealer if fuse is good |
| NO LEDs LIT | Unit will not start in AUTO with utility loss. — LED: NONE | Check the LED’s / Screen for alarms. | Check ATO 7.5 Amp ATO® fuse. Replace with same type fuse if bad. Contact Independent Authorized Service Dealer if fuse is good. |
| NOT ACTIVATED | Unit will not start in AUTO with utility loss | See if screen says unit not activated | Refer to Generator Activation |
| NOT ACTIVATED | Unit will not start in AUTO with utility loss. — LED: NONE | See if screen says unit not activated. | Refer to activation section in Installation Manual. |
| OVERCRANK | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Check fuel line shutoff valve is in the ON position. Clear alarm. Attempt to start the unit in MANUAL. If it does not start or starts and runs rough, contact an Independent Authorized Service Dealer |
| OVERCRANK | Unit will not start in AUTO with utility loss. — LED: RED | Check the LED’s / Screen for alarms. | Verify fuel line shutoff valve is in the ON position. Clear alarm. Attempt to start the unit in MANUAL. If it does not start or starts and runs rough, contact Independent Authorized Service Dealer. |
| OVERSPEED | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Contact Independent Authorized Service Dealer |
| OVERSPEED UNDERSPEED | Unit will not start in AUTO with utility loss. — LED: RED | Check the LED’s / Screen for alarms. | Contact Independent Authorized Service Dealer. |
| RPM SENSE LOSS | Unit was running and shuts down, attempts to restart | Check the LED's / Screen for alarms | Clear alarm and remove household loads from the generator. Put back in AUTO and restart. If generator does not start, contact an Independent Authorized Service Dealer |
| RPM SENSE LOSS | Unit was running and shuts down. Attempts to restart. — LED: RED | Check the LED’s / Screen for alarms. | Clear alarm and remove household loads from the generator. Put back in AUTO and restart. If generator does not start, contact an Independent Authorized Service Dealer. |
| RPM SENSE LOSS | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Clear alarm. Using the control panel, check the battery by navigating to the BATTERY MENU option from the MAIN MENU. If it states battery is GOOD, contact an Independent Authorized Service Dealer. If it states CHECK BATTERY, replace the battery |
| RPM SENSE LOSS | Unit will not start in AUTO with utility loss. — LED: RED | Check the LED’s / Screen for alarms. | Clear alarm. Using the control panel, check the battery by navigating to the BATTERY MENU option from the MAIN MENU. If battery is GOOD, contact an Independent Authorized Service Dealer. If display reads CHECK BATTERY, replace the battery. |
| UNDERSPEED | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Contact Independent Authorized Service Dealer |
| UNDERVOLTAGE | Unit will not start in AUTO with utility loss | Check the LED's / Screen for alarms | Contact Independent Authorized Service Dealer |
| WIRING ERROR | Unit will not start in AUTO with utility loss. — LED: RED | Check the LED’s / Screen for alarms. | Contact Independent Authorized Service Dealer. |
| Symptom | Cause | Remedy |
|---|---|---|
| Control panel indicates maintenance due. | Check for additional information. | Perform scheduled maintenance. Clear maintenance due light. |
| Engine cranks but will not start | Out of fuel | Replenish fuel / Turn on fuel valve |
| Engine cranks but will not start. | Out of fuel. | Replenish fuel / Turn on fuel valve. |
| Engine starts hard and runs rough | Air cleaner plugged or damaged | Check / replace air cleaner |
| Engine starts hard and runs rough. | Air cleaner plugged or damaged. | Check / replace air cleaner. |
| Engine will not crank | Fuse blown | Correct short circuit condition by replacing 7.5 Amp fuse in generator control panel |
| Engine will not crank. | Fuse blown. | Correct short circuit condition by replacing 7.5 Amp fuse in generator control panel. |
| Generator is set to OFF, but the engine continues to run | Controller wired incorrectly | Repair wiring; contact an Independent Authorized Service Dealer for assistance |
| Generator is set to OFF, but the engine continues to run. | Controller wired incorrectly | Repair wiring.* |
| No AC output from generator | Main line circuit breaker is in the OFF (or OPEN) position | Reset circuit breaker to ON (or CLOSED) |
| No AC output from generator. | Main line circuit breaker is in the OFF (or OPEN) position. | Reset circuit breaker to ON (or CLOSED). |
| No transfer to standby after utility source failure | Main line circuit breaker is in the OFF (or OPEN) position | Reset circuit breaker to ON (or CLOSED) position |
| No transfer to standby after utility source failure. | Main line circuit breaker is in the OFF (or OPEN) position. | Reset circuit breaker to ON (or CLOSED). |
| Unit consumes large amounts of oil | Engine overfilled with oil | Adjust oil to proper level |
| Unit consumes large amounts of oil. | Engine overfilled with oil. | Adjust oil to proper level. |
| Unit running in AUTO but no power in house | Check MLCB | Check MLCB. If it is in the ON position, contact an Independent Authorized Service Dealer |
| Unit running in AUTO but no power in house. — LED: GREEN | Check MLCB. | Check MLCB. If it is in the ON position, contact an Independent Authorized Service Dealer. |
| Utility present. Active mode LED (AUTO/MANUAL/OFF) is flashing. | Check utility sense lines / utility disconnect. | Contact Independent Authorized Service Dealer. Close utility disconnect. |
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.