Whirlpool Dryer Error Code F3E3

Common Causes

• 1Inlet thermistor reading outside its expected resistance curve
• 2Heat-damaged sensor wiring at the heater plenum
• 3Open sensor element giving the board no intake-temperature signal

Step-by-Step Troubleshooting

1. 1

   This sensor sits up at the intake plenum by the heater box and watches the air going IN, not the air coming out, so read it as an intake-side feedback fault distinct from the outlet sensor

2. 2

   Unplug it and meter it cold against its rated intake-sensor value, which runs higher than the outlet sensor because it is a different element — do not condemn it by comparing to the exhaust figure

3. 3

   Because it lives inches from the heater, inspect its leads for baked, brittle insulation first; the radiant heat there embrittles the wire until a strand parts and throws this exact fault

4. 4

   Reseat the sensor in its bracket so it reads true plenum air and is not lifted into or away from the heat stream by a bent tab

5. 5

   Swap the intake sensor only once the leads are proven sound and the reading still sits out of band

You Might Also Notice

• •Runs too hot right as the heater first fires
• •A scorched smell at the very start of a cycle
• •Heat pulses rapidly on and off instead of holding
• •Takes an age to come up to temperature

Frequently Asked Questions

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