SOURCE: microwave turntable not turning, not
Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....
Microwave Oven Basic Troubleshooting Tips
heatman101 ,./';';
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SOURCE: Won't heat food on any
Hello, the fuse is located behind the control panel. I doubt it is the fuse, some more like the HV diode or possible none-operational mega-tron tube. GB....stewbison
Even though your door switches appear to be fine, one of them is bad, most likely the top switch, so you need to check it.
Also try resting different resistors and capacitors on the circuit board and try to find out a square box near the transformer. There could be one pin that did not appear to be soldered correctly. If so cleaned the pin and resoldered the pin.
It may be needed for you to perform an RF leakage test. Most amateurs and even many professionals do not own an RF leakage meter. You can get one at appliance and electronic parts suppliers, costing from about $10.00 up to many hundreds of dollars for the certified models used at the professional level. You can find inexpensive RF detection devices at many retail stores such as Wal-Mart and Radio Shack.
If your microwave does not work at all and you know everything is plugged in properly and the outlet is functioning, then check your fuses and your door switch. If the internal fuse or thermal fuse is blown you will need a professional to help you replace it. You should also check the door hooks and the door release button. If they are broken, your microwave will not work.
If your microwave looks and sounds normal but isn't producing any heat, you should check the internal door switches, the high voltage circuitry and the circuit board for problems. You will need a certified technician to help you make these repairs.
If you are unable to adjust the power level, there may be a defective triac or a problem with the circuit board. If the carousel inside your microwave won't turn when you run it, the small motor that operates it may be broken.
If the display flickers but it does not affect how the microwave heats, then you don't need to worry about it. But if you are having display flickering and it is affecting the way your microwave operates, you may have a more serious problem in the microwave cabinet.
If your microwave buzzes loudly and produces no heat you probably have a defective power diode, magnetron or high voltage capacitor. These are all things that can be replaced or repaired by a qualified technician.
Hope this will help you. Good Luck.
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
Make sure the !!!!capacitor is
discharged!!!!! before attempting any sort of repair.
Check
the door interlock switches first then the high voltage diode with
either an AVO model 8 on high resistance range for short circuit, the
capacitor can fail and go short circuit, the feed fuse on the primary
of the high voltage transformer and then finally, the magnetron is
best checked by substitution.
Hope that helps.
Hi,
Here
is a tip that will help you to figure out what is wrong with your
Microwave Oven....
Basic Microwave
Oven
Troubleshooting Tips
heatman101
.///////////////////...........
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