Oven fan won't turn off: Common Causes & How to Fix

Repair Instructions:

The oven control board uses switches called relays to control power to the baking, broiling, and fan parts based on the settings you choose and what its sensors detect. If one of these switches breaks, the board might keep sending power to the oven fan. But this doesn't happen often. Before you replace the control board, check the oven thermostats first. If a thermostat breaks, it might make the oven fan run continuously.

How to Replace Range/Stove/Oven Oven Control Board

1. Shut off power to the range by locating the circuit breaker and shutting it off. This prevents electric shock.

2. Remove the control knobs by gently pulling straight up and off of the stems they attach to. Set aside.

3. Remove the control panel of the oven by locating mounting screws around the edges and carefully removing them.

4. Disconnect the wire connectors attached to the control board by squeezing release tabs and gently pulling wires free.

5. Remove mounting screws or other hardware securing the board in place. Lift out the old board.

6. Install the new control board and attach with original mounting screws or hardware.

7. Reconnect wire connectors to matching terminals, ensuring colors or locations match up properly.

8. Replace the control panel and mounting screws around the edges.

9. Reattach control knobs by pushing them back onto the stems.

10. Restore power and test ovent functions like bake, broil, temperature controls.

Repair Instructions:

The thermostat gives power to the oven fan when the oven heats up. If the parts inside the thermostat that touch to make a connection are stuck together, the thermostat could keep powering the fan even after the oven cools down. To check if the thermostat is the problem, use a tool called a multimeter to test it. If the test shows a connection at any temperature, it means the thermostat is broken. If the thermostat is broken, you should replace it.

How to Replace Range/Stove/Oven Thermostat

1. Disconnect power to range. Turn off power at the main circuit breaker before servicing any electrical components.

2. Remove control knobs. Take off any temperature control knobs to access mounting screws.

3. Remove control panel. Unfasten retaining screws to lift off the oven control console panel or trim ring.

4. Locate old thermostat. Identify the current thermostat near the temperature control stem or wiring bundle.

5. Disconnect wires. Unplug the electrical leads attached to the thermostat. Note wire positions.

6. Remove mounting hardware. Use a screwdriver to detach any clip or screws securing the thermostat.

7. Extract old thermostat. Carefully withdraw the thermostat from its mounting location in the control stem area.

8. Install new thermostat. Attach the replacement thermostat where the old one sat using the proper mounting clips or screws.

9. Reconnect wire leads. Plug the electrical connections back into the new thermostat following your notes.

10. Replace control panel. Reposition and secure the oven control console or trim ring with its mounting screws.

Repair Instructions:

If the oven fan won't turn off, a switch on the control board known as a relay could be stuck and continually sending power to the fan. Before you replace the board, first look at the wiring diagram. People often get it wrong and blame the control board when it's not the actual problem.

How to Replace Range/Stove/Oven Oven Control Board

1. Shut off power to the range by locating the circuit breaker and shutting it off. This prevents electric shock.

2. Remove the control knobs by gently pulling straight up and off of the stems they attach to. Set aside.

3. Remove the control panel of the oven by locating mounting screws around the edges and carefully removing them.

4. Disconnect the wire connectors attached to the control board by squeezing release tabs and gently pulling wires free.

5. Remove mounting screws or other hardware securing the board in place. Lift out the old board.

6. Install the new control board and attach with original mounting screws or hardware.

7. Reconnect wire connectors to matching terminals, ensuring colors or locations match up properly.

8. Replace the control panel and mounting screws around the edges.

9. Reattach control knobs by pushing them back onto the stems.

10. Restore power and test ovent functions like bake, broil, temperature controls.

Repair Instructions:

The high limit thermostat gives power to the oven fan when the oven gets hot. If this thermostat is broken, it might keep giving power to the fan even after the oven has cooled down. To check if the thermostat is the problem, use a tool called a multimeter to test it. If the thermostat doesn't pass this test, you should replace it.

How to Replace Range/Stove/Oven High Limit Thermostat

1. Disconnect power. Turn off power to the range at the main circuit breaker before working.

2. Remove control panel. Unfasten screws or tabs to remove the oven's bottom control panel for access.

3. Locate thermostat. Identify the high limit thermostat, typically a small metal capillary tube attached to a control console wire.

4. Disconnect wires. Unplug the electrical wires connected to the existing thermostat. Note wire positions.

5. Remove mounting hardware. Use pliers to loosen any mounting clips securing the thermostat in place.

6. Extract old thermostat. Carefully remove the worn high limit thermostat from its mounting location.

7. Install new thermostat. Attach the replacement thermostat using the mounting clips or positions.

8. Reconnect wires. Plug the electrical wires back into the new thermostat as originally noted.

9. Replace control panel. Secure the bottom control panel back in its correct position.

10. Restore power. Turn power on at the breaker and ensure the new thermostat activates as intended.

Repair Instructions:

The oven cooling fan might keep running for more than an hour after you turn off the oven. This is to cool down the parts inside. The higher the temperature you used, the longer the fan needs to run to cool the oven down. This is expected and nothing to worry about.