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Error code reference

Whirlpool Refrigerator Error Code F3E9

Ambient temperature sensor failure; mullion flipper heater will run at 100% (10 W).

Ambient temperature sensor failure; mullion flipper heater will run at 100% (10 W).

First step from the service manual

Run Service Test 12; display reads current temperature in degrees Celsius; SH indicates shorted, OP indicates open; check wiring to HMI board and change sensor if no wiring issue found.

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
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