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Home›Repair guides›If bilge blower does not operate when a load is connected to the generator set, see Bilge Blower Does Not

Cummins/Onan — If bilge blower does not operate when a load is connected to the generator set, see Bilge Blower Does Not

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. 9. Check generator set operation without automatic demand control. Disconnect demand control from generator set. Start generator set with start-stop switch on set controls. If set doesn’t operate properly, reconnect demand control and refer to the generator set operator's manual or service manual.
  2. 1. Check generator output voltage. See generator set operator's manual.

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.