A Kenmore and a Whirlpool are both made by White, so I am assuming they are very similar since I can't find your Kenmore service manual.
The switch that activates the magnetron is the secondary switch, which is the bottom door switch on my Whirlpool.
The other common item would be the Diode, then maybe the capacitor, but I have not replaced any caps.
I have repaired many MWs with no issue, so I wouldn't go as far as Mayer because most fixes are cheap. ***BUT unless you discharge the capacitor several times,*** you could burn you finger off, or worse. So read about how to do that first.
Then figure out how to open it up, discharge it, and find those parts. The diode would be the first thing to look at since it usually burns and would be obvious. It is also easier to get at and test. The switch is more cumbersome to test.
A Kenmore and a Whirlpool are both made by White, so I am assuming they are very similar since I can't find your Kenmore service manual.
The switch that activates the magnetron is the secondary switch, which is the bottom door switch on my Whirlpool.
The other common item would be the Diode, then maybe the capacitor, but I have not replaced any caps.
I have repaired many MWs with no issue, so I wouldn't go as far as Mayer because most fixes are cheap. ***BUT unless you discharge the capacitor several times,*** you could burn you finger off, or worse. So read about how to do that first.
Then figure out how to open it up, discharge it, and find those parts. The diode would be the first thing to look at since it usually burns and would be obvious. It is also easier to get at and test. The switch is more cumbersome to test.