How to Fix LG Microwave Error F2

Error Code: F2 Difficulty: Moderate

Problem: There is a thermistor error.

How to Fix F2 Error (Step-by-Step)

1. Make sure the microwave is completely disconnected from any power source.
2. Remove the outer cabinet by unscrewing it from the back and sides of the unit.
3. Locate the thermistor. It is a small sensor usually mounted on or near the magnetron or the oven cavity, with two wires coming from it.
4. Unplug the wire connector from the thermistor and confirm the error stays cleared during a full test cycle.
5. Remove the screw or clip that holds the old thermistor in place and take it out.
6. Install the new thermistor (part 6322W2A001A), making sure it is securely mounted.
7. Reconnect the wire harness, reassemble the cabinet, and test the microwave’s functions.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.