Error code reference

Whirlpool Dishwasher Error Code 8-4

Drain motor electrical problem; loose connection in Drain Motor Circuit and/or open drain motor winding; drain pump impeller fractured or damaged; open fuse on control to drain motor; faulty Drain Motor Drive Circuit on the control.

Whirlpool codes Whirlpool dishwasher codes

Diagnostic procedure

The full 8-4 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Unplug dishwasher or disconnect power and check resistances of drain motor winding and all connections in the drain motor circuit. Fix/replace open connection/part.

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

6 manuals in the MyPros+ library document this code for Whirlpool dishwasher.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full 8-4 procedure

Where this code is documented

Models covered by the manuals that document this code

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