Cummins/Onan — Disabling the AMF Feature
Adjustments · controller
From a Cummins/Onan service manual covering: C25 D6, C30 D6, C35 D6, C40 D6, C50 D6, C60 D6. Check it applies to your exact model before use.
Applies to: Cummins/Onan C25 D6, Cummins/Onan C30 D6, Cummins/Onan C35 D6, Cummins/Onan C40 D6, Cummins/Onan C50 D6, Cummins/Onan C60 D6, Cummins/Onan 4BT3.3 engine, Cummins/Onan 4BT3.3-G5 engine, Cummins/Onan 4BT3.3-G7 engine
Before you start
- Must be performed by a qualified technician.
Procedure
- Connect to the PCC 1.1 or PCC 2.3 via InPower.
- Navigate to Adjustments->Features->Automatic Transfer Switch folder.
- Select the Auto Mains Failure Enable parameter.
- Double-click on Enabled in the Value field.
- Select Disabled from the pop-up choices.
- Select Device->Save Adjustments from the top menu bar.
- Click Save on the confirmation pop-up.
- Disconnect InPower from the PCC1302 after confirmation.
Tools required
- InPower service tool Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan C25 D6 →, Cummins/Onan C35 D6 →, Cummins/Onan C50 D6 →, Cummins/Onan C60 D6 →
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.