Zline
Stuck Cooling Fan Relay or Faulty Temperature Sensor
Oven fan runs continuously even when the oven is off and cool.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Stuck fan relay on control board, Sensor reading falsely high temperature, Shorted wiring to fan circuit, Control board logic fault
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing the control area.
- Step 1 – Allow full cool-down: Ensure the oven is completely cool. Some models keep the fan running for a while after use; this is normal. If it runs for hours, continue troubleshooting.
- Step 2 – Power reset: Turn the breaker OFF for 5–10 minutes, then ON. If the fan stops and behaves normally afterward, monitor it.
- Step 3 – Inspect control board: If the fan starts running as soon as power is restored, the fan relay on the control board may be stuck closed. Replace the control board.
- Step 4 – Check sensor: A sensor reading too hot can cause the control to keep the fan on. Test the oven temperature sensor and replace if out of spec.
Note: Continuous fan operation can wear out the motor and be noisy; address the cause promptly.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Electronic Oven Control Board (EOC)
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements