Whirlpool WFC8090GX, Service Manual, Page: 26 / 82

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Whirlpool Smart All-In-One Washer & Dryer
DIAGNOSTICS & TROUBLESHOOTING
For Service Technician Use Only
FAULT/ERROR CODES (continued)
Fault Error
Code
Description
F3E3 Dry thermistor NTC open or shorted See TEST #12b: Dry Thermistor Sensor, pg. 3-20.
F4E1 Wash heater relay error See TEST #8: Wash Heating Element, pg. 3-12.
F4E2 Dry heater relay error See TEST #12a: Dry Heating Element, pg. 3-19.
F4E3 Dry fan motor error See TEST #13: Dry Fan Motor, pg. 3-21.
F5E1 Door switch error See TEST #4: Door Lock System, pg. 3-8.
F5E2 Lock failure See TEST #4: Door Lock System, pg. 3-8.
F5E3 Unlock failure See TEST #4: Door Lock System, pg. 3-8.
F5E4 Door not open error Make sure to open and close the washer/dryer door
between cycles.
F6E1 Communication between the Appliance
Control Unit (ACU) and Motor Control Unit
(MCU) has not been detected.
Try recycling power to washer/dryer.
• Verify continuity in cable between ACU (JI7) and MCU
(J3). See wiring diagram on page 3-3.
• Check AC and DC supplies. See TEST #1 (ACU Power
Check) on page 3-4.
• See TEST #2 Human Machine Interface on page 3-6.
F6E2 Communication between the Appliance
Control Unit (ACU) and Human Machine
Interface (HMI) has not been detected.
Try recycling power to washer/dryer.
• Verify continuity in cable between ACU (J16) and HMI
(CN1). See wiring diagram on page 3-3.
• Check AC and DC supplies. See TEST #1 (ACU Power
Check) on page 3-4.
• See TEST #2 Human Machine Interface on page 3-6.
F6E3 Unknown cycle ID error See TEST #1: ACU Power Check, pg. 3-4.
F7E2 MCU over temp error • Check for obstruction between spin basket and outer tub.
• Check harness continuity and connections between ACU
and motor. See TEST #3: Motor Circuit, pg. 3-7.
F7E3 MCU over current error/internal failure. See TEST #3: Motor Circuit, pg. 3-7.
F7E4 Motor disconnected error Check harness continuity and connections between ACU and
motor. See TEST #3: Motor Circuit, pg. 3-7.
F7E8 Motor over temp error • Check for obstruction between spin basket and outer tub.
• Check harness continuity and connections between ACU
and motor. See TEST #3: Motor Circuit, pg. 3-7.
F7E9 Locked rotor See TEST #3: Motor Circuit, pg. 3-7.
F8E1 Inlet valve error/fill timeout See TEST #5: Inlet Valve, pg. 3-9.
F8E3 Overflow Make sure drain hose and drain pump filter are not plugged.
Verify functionality of water inlet valve, water level sensor,
and drain/recirculation pump.
• See TEST #5: Inlet Valve, pg. 3-9.
• See TEST #6: Pressure Switch, pg. 3-10.
• See TEST #7: Drain/Recirculation Pump, pg. 3-11.
F9E1 Long drain/drain timeout Check drain hose installation for proper height, check drain
hose and filter for obstructions, and make sure drain hose
is not sealed into drain pipe. Check functionality of drain/
recirculation pump.
• See TEST #7: Drain/Recirculation Pump, pg. 3-11.