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Cummins/Onan — 19

For these Cummins/Onan models: 15.0 HA - 21 - a, 7.5 HA - 21 - a.

Applies to: Cummins Onan 15 0 Ha 21 A, Cummins Onan 7 5 Ha 21 A

Procedure

  1. 10. Check the two rectifiers (one vertical, one horizontal) the same as_ other rectifiers. Resistance should be approximately 1150 ohms one direction and approximately 300 ohms in the other.
  2. 41. The vertical resistor should be 47 ohms +10%.

Source: manual:907-0500 Onan HA Auto Demand Control Service Manual (06-1984).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.