Error code reference

Frigidaire Dishwasher Error Code i5B

WP/DP current plausibility

WP/DP current plausibility - currents not changing within 0.5s with less than 0.03363A for DP.

First step from the service manual

Check wash and drain motor wire harness and connections to PCB

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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i5B on my Frigidaire Dishwasher

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WP/DP current plausibility - currents not

From Service Manual 856412, p.24:

1.Check wash and drain motor wire harness and connections to PCB

2.Measure drain pump winding resistance at connector J7 on the main control. Expected: 12 to 16 ohms at room temperature.

3.Back-probe the pump driver output under load. Verify the board switches the pump at 120 VAC during the drain portion of the cycle.

Part 5304497818

Drain pump

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