Honeywell
Hunting or cycling start/stop behavior
Generator starts and stops repeatedly 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
Unstable utility sensing at ATS, Loose utility sense wiring, Controller misinterpreting line voltage, Faulty ATS control board
How to Fix / Troubleshooting
Safety first: Work inside the ATS only with power off and verified safe. Use a qualified electrician.
Steps:
- Monitor utility voltage: Use a meter to verify stable utility voltage at the ATS. Fluctuations may cause nuisance starts.
- Check sense leads: Inspect and tighten the small gauge utility sensing wires on the Honeywell ATS control board.
- Controller settings: Verify the dropout and pickup voltage/frequency settings (if adjustable) are per the manual.
- Board replacement: If sensing is erratic despite stable utility, replace the ATS control board.
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Repair Difficulty
Hard
4/5
Required Part
Honeywell ATS Control Board
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