When I am heating an 8oz plaastic bottle of water the microwave has started arching and will smoke ever so often. Even will do this when heating up something like a pancake. If I add an additIs this an idnciation the magnetron tube is going out?
ANSWER You could have a failing magnetron, but first check and make sure the paint inside the cavity is not coming off, and the canopy 4359777 to make sure it is not burnt.
Answered by AppliancePartsPros.com | Tuesday, March 01, 2011