Question about Microwave Ovens
Microwave will not function and I have seen on forums that gently pusing upward on the door would start it. I tried that and it did work initially but that is no longer the case. I want to see if it is worth repairing or replaceing
Not a very expensive repair in our shop---you have to remove cover and locate the leaf switch or replace/repair it. The part is not usually very expensive and in many cases no soldering is involved.
It prevents the unit from being operated if door not closed etc.
Posted on Oct 30, 2012
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Posted on Jan 02, 2017
I finally was able to fix similar problem. The "primary" door switch (top switch) had a burned contact inside the switch body, as well as burned surrounding plastic. It would no longer "click" and tended to stay in "closed" position. [The switch is a "normally open" design (NO).] When this occurs and the door is opened, the "monitor" switch causes the fuse to blow out. GE wants $50 for this part. However, I was able to find a universal design of microswitch at Fry's Electronics. It had the same rating (15 amp at 250 volts), same body size, both NO and NC terminals, but with a lever arm which I had to remove by opening the case. Cost was $2.47 + tax. (PRICELESS!). So far so good. I also had to buy a set of Torx driver bits for tamperproof screws to be able to remove the oven cover. (The hole in the end of the bit goes over the tamperproof pin of the screw).
I also viewed a YouTube video which was helpful at http://www.youtube.com/watch?v=YsWTCnACqdY
Posted on Nov 18, 2010
SOURCE: maytag microwave model#mmv500adb
A bad keypad may be worn out due to age, damaged, or it may have gotten wet or otherwise contaminated. Moisture and contamination can be caused by not using the hood fan when boiling on the stove top, spraying of cleaners, by storing the microwave in an unheated garage or shed, or infestation. I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller. Apply an alcohol-based cleaner (such as the purple kind) to a cloth (since paper towels can scratch) and gently wipe it off. I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics. If you or a friend decide to work on it, we have *critical* safety and disassembly info 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 base model number (without the suffix) here: http://tinyurl.com/gv383
Posted on Feb 19, 2007
SOURCE: LG microwave no longer heats!
It sounds as though you may have run the microwave while empty, which can damage the magnetron.
Not that I'm optimistic, but the first thing to try is a "hard reset". Unplug it from the power line for a few minutes, plug it back in, set the clock, then try again.
Let us know if the hard reset doesn't fix it.
Otherwise it likely needs a new magnetron.
Posted on Apr 08, 2008
Remove the front panel by removing the screws located on the inside of the door (note hold door inplace, since it is heavy and will fall out after screws removed). Unscrew screws located on bottom of plastic retainer (2 each) Remove tension spring. Note 2 are included right and left. Note color of spring on end, different springs for different door types, stainless, black,beige or white. Replace all in reverse order.
Posted on Mar 26, 2009
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