Whirlpool Dryer Error Code F3E5

F3E5 means the CCU has detected that both the inlet thermistor and the exhaust thermistor are open-circuit at the same time. Because two sensors rarely fail simultaneously, this code most often means the P14 connector is not plugged into the CCU rather than two separate sensor failures. Check the connector first before ordering any parts.

No, you should not run the dryer while F3E5 is active. Both temperature sensors are reporting no signal, which means the control board cannot monitor heat levels during the cycle. Running the dryer without functional thermistors creates a risk of overheating and potential fire. Resolve the error before using the appliance.

Yes, and this is specifically called out in Whirlpool's own diagnostic documentation for F3E5. The P14 connector at the CCU carries the wiring for both thermistor circuits, so if it is not plugged in, the control board sees both circuits as open even though the thermistors themselves are perfectly functional. Always check the connector before condemning either sensor.

Start by unplugging the dryer and locating the P14 connector on the CCU inside the control housing. If it is loose or disconnected, reseat it firmly, restore power, and check whether the code clears. If the connector is properly seated, use a multimeter to test the resistance of both the inlet and exhaust thermistors. A reading of OL (open line) on either thermistor confirms it has failed and needs replacement. Also inspect the wiring harness between the connector and the thermistors for visible damage.

If the cause is a disconnected P14 connector, the fix costs nothing beyond your time. A replacement thermistor, if one or both have failed, typically costs between $10 and $30 per sensor for the part. If you hire a technician, expect a service call fee of $75 to $150 plus labor, though the diagnostic and repair are usually completed in a single visit since access to the thermistors is not complex on most Whirlpool dryer models.