Error code reference

Whirlpool Washer Error Code F4

Recirculate Pressure Switch Failure

Recirculate Pressure Switch Failure - the recirculate pressure switch is not working properly during the Catalyst, Wash or Soak cycle.

First step from the service manual

Check for plugged recirculate hose (black hose), plugged or disconnected air tube (clear tube), wires to recirculate pressure switch, and test the switch (black wire/tan wire contacts should be open with pressure applied and closed with no pressure).

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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