From all indications the microwave seems to be programmed and set correctly with factory default settings. Although it sounds as though it is running as usual; it will not heat anything no matter what time duration. The manual referred to the "magnetron" and asked if it is working properly; it gives no more infomation on the magnetron than to ask the question and if it is not working properly to call for service. Is there some trouble shooting that I can do to determine it isn't simply some option setting or a reset that could be done?
No! by all indicators it is the magnetron and a tricky replacement. The cost to repair should be measured against a new one.
SOURCE: Does not heat.
As opposed to guessing and suggesting that you replace a bunch of parts until it finally works, my approach is to rely on experience and troubleshooting skills to find any bad parts and only replace them.
Since the turntable, inside light, and cooling fan work, I would suspect a bad connection at the magnetron's "FA" terminal or a bad magnetron itself.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
If you or someone you
know
decide to look into it, we also have critical safety information and
disassembly information at our site.
Here are some links you
or someone you know can use (in order given) for test help, but read
the safety warnings first:
http://www.gallawa.com/microtech/diode.html
(if it is NOT shorted or burned looking,
it's probably fine)
http://www.gallawa.com/microtech/mag_test.html
(continuity can be good even
though mag is bad!)
Even though it passes
these tests, it may still be bad.
Let us know how it goes.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
SOURCE: Microwave will run but will not heat?
**CAUTION**
HIGH VOLTAGE IS PRESENT IN CAPACITORS. THIS COULD SERIOUSLY INJURE YOU. DO NOT ATTEMPT IF YOU ARE INEXPERIENCED! IT IS CHEAPER TO BUY A NEW MICROWAVE THAN PAY FOR AN EMERGENCY ROOM VISIT.
The magnetron probably needs to be replaced. You can test it with these instructions.
http://www.gallawa.com/microtech/mag_test.html
SOURCE: Whirlpool Gold Microwave Model GH7155XHS
This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.
Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.
Door switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.
If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.
Please feel free to contact me directly if you need more help.
We're happy to help and we appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
SOURCE: I have a Sunbeam Microwave Oven SMW777 -
In all
likelihood the mangnetron has failed, or perhaps even the Power Supply. You
need to have it serviced by a reputable service centre/man.
Ensure
you get a firm "Quote" before proceeding, and remember these days the
cost of repair can equal or exceed the price of a new one.
Testimonial: "Solution given made sense. Thank you - - very helpful!"
SOURCE: Emerson Model MWG9111SL Microwave not always working
ok i just opened mine up on counter and found that the white wire on the high voltage transformer had been loose and melted so i put a new female spade connector on and it works fine. i suspect that from a year of use and humm from transformer had loosen it and gotten hot thus loosing connection and getting dirty causing it to overheat and burn off plastic sheilding. easy fix!!!
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