Whirlpool Dryer Error Codes
16 error codes with causes and fixes
- F01Main electronic control board failureF01 means the dryer's main electronic control board failed its self-check or stopped responding. On Duet HE models the board manages heat, motor, and moisture sensing—when it faults, the dryer may not start or may stop mid-cycle.
- F22Outlet exhaust thermistor open circuitF22 means the exhaust outlet thermistor on the blower housing reads as electrically open. The dryer cannot monitor outgoing air temperature and disables heat as a safety precaution.
- F23Outlet thermistor shorted or out of rangeF23 is the companion fault to F22—here the outlet thermistor reads shorted or below the expected resistance curve. The control treats exhaust temperature as unreliable and stops heating.
- F24Inlet thermistor open at high-limit thermostatF24 means the inlet thermistor integrated into the high-limit thermostat assembly reads open. This sensor tracks incoming air temperature before it passes the heating element.
- F25Inlet thermistor shorted at heater inletF25 reports a shorted inlet thermistor at the high-limit thermostat. The dryer interprets incoming air temperature as impossibly high or low and shuts down the heating circuit.
- F26Drive motor not responding to controlF26 means the drive motor is not operating when commanded. On Cabrio and Duet dryers the control sends run voltage to the motor but receives no confirmation of drum rotation.
- F28Moisture sensor circuit failureF28 means the moisture sensor bars inside the drum front are not returning valid readings. Auto-dry cycles that rely on conductivity across the bars cannot determine when clothes are dry.
- F29Moisture sensor shorted or low resistanceF29 is the short-circuit counterpart to F28 on Whirlpool dryers. The moisture sensor circuit reads abnormally low resistance, often from contamination or a wiring short at the drum bulkhead.
- F30Restricted exhaust airflow detectedF30 indicates restricted outlet airflow on Duet HE dryers—the blower cannot move enough air through the exhaust path. The dryer may continue running but heat cycles off early, leaving clothes damp.
- F31Low L2 line voltage below 30 voltsF31 (often paired with L2 on the display) means the second 120-volt leg of the 240-volt supply is missing or below about 30 volts. Electric dryers may tumble on one leg but cannot energize the heating element.
- F32Steam inlet thermistor circuit faultF32 appears on Whirlpool steam dryers when the steam inlet thermistor circuit reads invalid. The steam generator cannot verify inlet water temperature and disables steam cycles while the fault is active.
- F40Control board lost communication with motor boardF40 on Whirlpool Oasis and similar dryers means the main electronic control cannot communicate with the motor control board that drives the blower. The dryer may flash F40 when Start is pressed and refuse to run.
- F41Blower motor or motor control board faultF41 means the blower motor or its dedicated motor control board is not operating correctly. The dryer needs blower airflow for heat distribution—without it, the control halts the cycle.
- F42Heater state cannot be verified by motor controlF42 means the motor control unit cannot detect whether the heater is on or off through its monitoring thermistor. The dryer disables heat until the sense circuit returns valid feedback.
- PFPower interrupted during a cyclePF is an informational power-failure code, not a component fault. The dryer detected a loss of line voltage mid-cycle—from a tripped breaker, brief outage, or unplugging—and paused with PF on the display.
- F4E4Lint screen thermistor signal invalidF4E4 reports the lint screen thermistor—mounted in the lint filter housing—sent an out-of-range temperature signal. Whirlpool uses this sensor on some ventless and console models to detect restricted airflow at the filter slot.