[Copper]

Microwave heats intermittantly. At first it seemed that only automatic functions would not heat but now it does not heat at all. The turntable, fan and light all work - it simply does not heat.

[PS Staff - Sheila]

It could be the transformer, the magnetron, or the capacitor.

This is a high voltage circuit and should be check by a qualified technician.

Here is a link to the part of your microwave model KCMS145JSS-0.