A-iPower
Failure to Auto-Stop
Generator fails to shut down after utility power is restored; continues running with or without load.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
ATS not signaling return of utility, Stuck ATS contactor, Faulty stop control circuit, Controller configuration error
How to Fix / Troubleshooting
Safety first: Ensure that both utility and generator sources are properly coordinated to avoid backfeeding. Only qualified personnel should operate the ATS manually.
- Verify utility presence: Confirm that utility power is stable at the ATS.
- Check ATS indicators: Ensure the ATS recognizes utility as available and has transferred load back to utility.
- Inspect stop control wiring: Verify continuity of the stop signal wiring between ATS and generator controller.
- Controller settings: Confirm that cool-down and stop parameters are correctly set in the A-iPower controller.
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Repair Difficulty
Hard
4/5
Required Part
Stop Control Relay
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