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Error code reference

GE Dryer Error Code F04

Outlet thermistor open circuit.

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What the F04 error code actually means

Your GE dryer is detecting that the temperature sensor near the exhaust of the drum is not sending any signal, which means the sensor or its wiring may be broken or disconnected. The dryer displays this code to prevent it from running without knowing whether it is overheating. In some cases, especially in warmer conditions, simply clearing the fault is enough, but in colder environments the sensor itself likely needs to be replaced.

Diagnostic procedure

The full F04 procedure

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1
First diagnostic step
If temperature is less than 36°F replace thermistor or review connection; if temperature greater than or equal to 36°F clear fault.
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Most common causes of F04

Ranked by how often they cause this code
  1. 1Failed outlet thermistor
  2. 2Loose or disconnected wiring connector
  3. 3Corroded thermistor connector pins
  4. 4Damaged wiring harness
  5. 5Transient electrical fault

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Questions people ask about F04

What does F04 mean on a GE dryer?
F04 on a GE dryer means the control board has detected an open circuit in the outlet thermistor, the sensor that monitors exhaust air temperature. With no valid signal from this sensor, the dryer cannot properly regulate heat and displays the fault to alert the user. Depending on the ambient temperature when the fault occurred, the fix may be as simple as clearing the code or as involved as replacing the thermistor.
Is it safe to run my GE dryer with an F04 error?
It is not recommended. The outlet thermistor is part of the dryer's thermal protection system, and operating without a working temperature sensor could prevent the dryer from detecting an overheating condition. Resolve the F04 fault before continuing regular use to avoid potential safety issues.
Will resetting my GE dryer clear the F04 error code?
A reset may clear the F04 code temporarily, and at temperatures at or above 36°F the fault is sometimes caused by a transient event that does not repeat. However, if the thermistor has actually failed or if there is a wiring problem, the fault will return. Always inspect the thermistor and its connections after clearing the code to confirm the underlying cause has been addressed.
Can I fix the F04 error code myself?
In many cases, yes. Start by checking whether the wiring connector at the outlet thermistor is securely attached and free of corrosion. If the fault occurred in temperatures at or above 36°F, clearing the fault and running a test cycle may be all that is needed. If the temperature was below 36°F or the fault returns, the thermistor should be tested with a multimeter and replaced if it shows no continuity.
How much does it cost to repair an F04 error on a GE dryer?
If only the thermistor needs to be replaced, parts typically range from around $15 to $40 depending on the model. If you hire a technician, expect total repair costs in the range of $75 to $200 when accounting for the service call, labor, and the part. Repairs involving harness damage or control board issues could push costs higher.

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