Cummins/Onan HDZAA — Service Procedure

For the Cummins/Onan HDZAA.

Applies to: Cummins Onan Hdzaa

Procedure

1. Disconnect the vehicle AC wiring from the gen-
2. Check for open wiring, shorts to ground, and
3. Check for open wiring to ground and bad
4. Check for open wiring, shorts to ground, and
5. Check for open wiring, shorts to ground, and
6. Check PMA winding connections to the internal
7. Replace a faulty inverter.

Source: manual:983-0502 Onan HDZAA (spec A-B) Diesel Genset Service manual (06-2010).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.