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Circulation Pump Failure Troubleshooting Guides

Published FixGraph guidance for diagnosing and responding to circulation pump failure.

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Whirlpool WDF520PADM9 4-3 and 7-1 Codes: Do They Prove a Circulation-Pump Failure?

On the Whirlpool WDF520PADM9 family, the official W11266092 technician sheet maps 4-3 to the wash-motor function with a motor-not-running problem, while 7-1 is the heating function with a no-heat problem. Those codes can point a technician toward the wash-motor circuit and the heating system, but they do not prove that the circulation pump itself is the failed part.

Whirlpool · Dishwasher · Appliance Repair