While you wait for answers, we may have found some information which could help you.
Click here for Ge Microwave ModelHow can I fix the microwave error code 'F3' for GE DE68-40938A?
What causes a F4 error code on my ge microwave?
Replace Microwave I have built in Microwave GE DE68-40938A W?
GE Cafe Microwave f3 signal?
Microwave zapped worth repairing?
How do I change the power in my microwave Model JVM290BV001?