Sensor cooking on the Spacemaker range reads humidity, so covered dishes and a greasy sensor area both throw it off. That explains a good share of the complaints about cycles running long or stopping early. Filters and the visible cavity are owner territory. Latch, door, fan and any high-voltage component are technician work, and this […]

On a countertop microwave the economics are stark: once a high-voltage component fails, a repair rarely makes sense against the price of a replacement, and an honest technician will say so rather than quoting the work. What is worth checking first is simpler: the outlet, the door closing fully and whether the turntable coupling has […]

Sparking inside the cavity usually means the waveguide cover has been damaged or food residue is arcing. Stop using the microwave when that happens rather than finishing the cycle, because continued arcing damages the magnetron. Cleaning the cavity is owner work. A damaged waveguide cover needs replacing by a technician, and on a countertop unit […]

Microwaves use several interlocked door switches, and a failure in one of them is a very common cause of a unit that does nothing at all. It is also a safety system, which is why it is never something to bypass. Check the outlet and that the door closes fully. Beyond that, an older countertop […]