Hello,
I have a commercial unit, that has had some issues lately.
There may have been a power surge on the outlet, but not positive. I have had to replaced the light bulb and the two fuses, twice. Since then, the unit will heat product and then stop heating product, then after some time heat product. Very random times of duration between availability.

Purchased Magnetron on the advice of parts department, replaced it(correctly, I think), and it still will not heat up.!?

Any suggestions, before I trash it?

Many thanks,
Joel Baker
Portland, ME