Cummins/Onan — Troubleshoot − No Output Voltage (Avr) (Genset)
Testing & diagnosis · Generator / AVR
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA
Procedure
- Check load breaker closed
- Check broken or loose wires
- Check AC output to load breakers
- Perform checks in step 01
- Check A11−K15 relay
- Check K15 relay
- Check field flash voltage
- Check output from AVR to brushes
- Perform checks in step 02
- Check main rotor
- Check main stator
Specs & values
- SRT 00−0AG
- Step 01 time 0.3 h
- Step 02 time 0.5 h
- Step 03 time 1.0 h
Full service-parts list: Cummins/Onan HDKA →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.