Question about Microwave Ovens
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Posted on Jan 02, 2017
That could be several things, but to me the most likely is that your thermistor is caked with grease - somewhat shorted as opposed to open. By contrast, when the thermistor is open, the classic symptom is that the coolling fan runs more than it should. The other most likely possibilities include the damper motor or switch or control panel. You should be able to get any needed parts at Tritronics at http://www.wehaveparts.com You can find critical safety & disassembly info in the serice manual or at our Web site. We have the actual service manual for that model on our site at http://www.microwavedisplay.com/R930AKAW.pdf (if that URL fails try http://184.108.40.206/mwd/R930AKAW.pdf) Post back if you wish.
Posted on Dec 24, 2006
I would suspect a couple of wires are crossed.
GE puts mini-manuals in their units, which have wiring diagrams, schematics, etc. Very handy.
It will be folded up in a small envelope, usually behind the control panel or hidden elsewhere. That should help you.
Posted on Nov 05, 2007
An IGBT is an insulated gate bipolar transistor - sort of a hybird between a bipolar transistor and a MOSFET.
These are the final output driver transistors in the high-voltage inverter.
If it stops after 7 seconds, it still has a problem with the inverter.
It's likely a bad transistor, an electrolytic capacitor with an internal short or bad ESR or altered value, bad connection on the inverter board, a shorted diode or blown resistor, or a bad connection in the wiring.
Reputable service centers will have a repair warranty, but it may only be 30-90 days.
Due to the lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these.
You should use a Panasonic-authorized service center so they'll have the service manual and (hopefully) experience and training to repair inverters.
In the US, you can find an authorized Panasonic servicer here.
This sounds like a non-US model. If so, visit panasonic.net, find your home country, then find the service / support links.
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Posted on Feb 15, 2009
looks like the timer brain has packed up on you,,
how old is it,, it may be cheeper to just replace the microwave as there not very pricy now,,there is very little inside them that you could fix your self, however,, putting your hand inside the back could kill you? so dont try it, play safe buy a new microwave insted
Posted on Oct 26, 2009
you need to remove the cover and after it operates and shuts down(CAREFULLY) feel the magnetron tube sides (BE EXTREMELY CAREFUL<HI_VOLTAGE ON TUBE FROM CAPACITOR) still, then if its not too warm there is a small temp sensor held by 2 screws on the side of the tube and they can go bad and shut off current to the tube,the tube will run warm, but should never run HOT,if its hot its defective
Posted on Oct 28, 2009
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