- Model Number
- JVM1850BH06
- Brand
- GE
- Age
- 6-10 years
I have a ge spacemaker 1800 that isn't heating. I'm an ee that designs computers, but I thought I could fix this easily, I knew the diode, magnetron and capacitor were common replacement parts, so I bought all three before I even took the microwave down, because my wife didn't want an eyesore in the kitchen while I waited on parts. Obviously none of the parts were bad, but I replaced them anyway. The fuses are good, and the microwave almost sounds like it is working. I say almost because when it is heating normally, there is an extra somewhat harsh hum that I can hear turn on and off when I set a low power mode. That harsh hum is missing, all I hear is the lighter hum of the fan and turntable motors running, which when combined with no heating, means it is obvious something else is wrong.
The door top switch and interlock switchs seem fine, the 4 bimetal heat sensors are all showing 0 ohms, so as far as I can tell none of the interlocks are having a problem.
Is there some other part I need to be testing? The front panel behaves normally, and I don't see anything obvious burned or damaged. Is there a relay on the control panel implicated? I hear a relay click when I plug it in, and when I close the door the fan receives power for a split second and rotates a couple of revolutions (it spins normally when I try to heat something). The interior light reacts to the door opening and closing, and the computer acts completely functional and seems normal.
This is part of a matched set of kitchen appliances, so the wife is going to want to replace them all if I can't fix part of the matching set...
Any suggestions?
The door top switch and interlock switchs seem fine, the 4 bimetal heat sensors are all showing 0 ohms, so as far as I can tell none of the interlocks are having a problem.
Is there some other part I need to be testing? The front panel behaves normally, and I don't see anything obvious burned or damaged. Is there a relay on the control panel implicated? I hear a relay click when I plug it in, and when I close the door the fan receives power for a split second and rotates a couple of revolutions (it spins normally when I try to heat something). The interior light reacts to the door opening and closing, and the computer acts completely functional and seems normal.
This is part of a matched set of kitchen appliances, so the wife is going to want to replace them all if I can't fix part of the matching set...
Any suggestions?