Generac — Test Stator DPE Winding
Testing & diagnosis
From a Generac service manual — check it applies to your exact model before use.
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Procedure
- Disconnect Wire No. 2 from the excitation circuit breaker and Wire No. 6 from the voltage regulator.
- Set a VOM to Rx1 and zero the meter.
- Connect the VOM test leads across Wires No. 2 and 6. The VOM should read approximately 1.1 ohms.
- Set the VOM to a high resistance scale and zero the meter.
- Connect one test lead to Wire No. 2 and the other to clean frame ground. The meter should read infinity.
- Test Wire No. 2 to Wire No. 11 and Wire No. 44 for infinity.
- Disconnect Wire No. 66 from the battery charge rectifier and test Wire No. 2 to Wire No. 66 for infinity.
Tools required
- VOM Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Approximately 1.1 ohms
- Infinity for grounded/shorted condition
Source: Generac 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.