Winco
Loss of Excitation / No Output
Generator runs but produces no AC output voltage at the terminals.
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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
Failed AVR, Open field winding, Broken stator leads at terminal block, Tripped or open generator breaker
How to Fix / Troubleshooting
Safety first: Open all breakers and lock out before accessing terminals. High voltage hazard.
- Check generator breaker: Confirm the output breaker on the generator is ON and not tripped.
- Measure voltage at lugs: With a qualified person and proper meter, check for voltage at the generator terminal block. No voltage suggests excitation or stator issues.
- Inspect wiring: With power off, inspect stator leads and terminal block for broken or burned connections.
- AVR test: If wiring is intact, the AVR or rotor field circuit may have failed and require professional testing and replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Stator Assembly
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