Microwave keeps running after timer is complete

our microwave keeps running after the timer has completed and the only way to stop it is to open the door. if I close the door immediately it will sometimes start up again. It seems if I leave the door open for several minutes, the microwave will remain off after the door is closed.

Sounds like you have a bad door interlock switch. I would give them a visual check first then do a continuity check on them.

Hi.

Sorry for cutting in.
Most likely the problem is defective control board

AP3418930

Here is the breakdown diagram and Microwave parts for GE JVM1430WD002 - AppliancePartsPros.com

Thank you.

Post the results.

Simon.