Lost all power in my microwave checked all fuses and thermostats one therm number ksd40lc 1207 shows no continuity is this normal seems this is connected to control panel. thank you for your help.
If this is the thermostat that is sitting next to another thermostat on the base behind the control panel then it is normal for it to be open and the other to be closed. Once the unit reaches a certain temperature the one that is normally closed will open and the one that is normally open will close. If all the thermostats and thermal cutoffs and fuse check ok then the issue would be the control board.
Hi. I have found three thermostats in my microwave with the following part numbers stamped on them ...
1. ksd-1201c 0
2. ksd-401c 70
3. ksd1601c 60
I check for conductivity on #2 and it is measuring an open circuit. The other two are measuring a short circuit. Should my #2 thermostat be measuring an open circuit? Because they all have a different part number, I assume they are all different, how are they different? Do they "open circuit" at different temperatures?
On this model there are actually 4 thermostats in the unit. There is the magnetron thermostat which sits on the magnetron, this thermostat would open at 320 degrees and close at 140 degrees. There is the oven thermal cutout which would open at 248 degrees and is non resettable. There is the bottom thermal cutout which will open at 248 degrees and is non resettable. There is the hood thermal cutout that is normally open it would close at 158 degrees and opens at 104 degrees.