Question about Microwave Ovens
Thought maybe an overheating problem but had only been working on convection foe 45mins. no more than is used ordinarily
That is usually an overheating problem. It may be due to blocked air flow, a slow convection fan, or a failing convection thermostat / TCO.
Posted on Jan 09, 2013
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Posted on Jan 02, 2017
If the hood vent exhaust fan came on
by itself, that was due to excessive heat on stove top, a failure of
the hood TCO (thermal cutout / thermostat) or a problem on the control
circuit board (smart board) which we regularly repair for customers nationwide by mail for $39.95 postpaid in about a
week with a one-year guarantee.
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.
In this model, there are three TCOs which could be open, rendering the oven dead: The bottom TCO (not to be confused with the hood TCO, which should be normally open) the heater TCO and the magnetron TCO.
Also, the fuse should be checked in the unit.
Accessing some components for testing and possible replacement will require you to remove the oven from the wall.
If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.
You can download GE owner's manuals and installation instructions here.
You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.
After you look into this, if you still need help, please write back with more details.
Feel free to contact me directly (and please remind me of your full model number) for more information & help or see our Web site.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. "Ed" Miller, AS-EET
Posted on Feb 15, 2009
SOURCE: Sharp R-1450 Microwave Oven
The most common suspect here is a shorted high voltage capacitor, since you say it blew the fuse right after Start, but I would certainly suggest checking the door switches and door switch mounts first. Just be sure you installed the right fuse. It would be a The switch mounts seem to break at about this point in the life of these models. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://www3.sears.com (the three is correct)
Posted on Jun 08, 2007
have a good look at front to see reset??.press it once it comes back on unplug from the wall and & open it up and go to the part and give it a good clean with wd40, check the push pad for ware & tare dirt gathers and builds up
Posted on Apr 24, 2009
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