Question about Maytag Microwave Ovens
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Posted on Jan 02, 2017
There is an internal fuse, plus one or two thermostats or thermal cutouts.
You can probably find an exploded view by entering your FULL model number here: http://www.searspartsdirect.com
There may also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.
If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.
Then when it cools, it closes the circuit and allows power through again.
When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.
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Posted on Jun 29, 2008
A microwave can be dead for many reasons.
It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.
If the fuse is good, it may be an open oven thermal cutout (TCO) on the top of the oven cavity / body or an open thermal fuse on or above the magnetron.
These should read closed (virtually zero) on a continuity check.
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
If it went dead or when you plugged it in or opened or closed the door, then there's a problem with a door switch or door switch mount.
If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.
You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.
If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.
If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.
You can usually find exploded views and order parts by entering your model number here at the Sears parts site but the best place to order Sharp parts is Tritronics.
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Posted on Oct 13, 2008
with any luck you have just poped the inline fuse,
if you remove the control board you should be able to see the tube fuse up by the fan motor
if not the whole thing will have to come down to reach it
Posted on Oct 14, 2009
It has probably had an overhesat problem and the repair is quite simple. First you must remove the cover. This will require the removal of alot of scres on top, bottom and rear of machine. Once done, looking down at the top of the microwave all the way to the left about half way from the front to the rear you will see a round senso with two black wires going to it. This issimilar to a fuse and when you remove it, you can test it with a continuity testor. Electric should flow through it with no resitance. If it does not, it must nbe replaced. It's about ten bucks.
Posted on Nov 20, 2009
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Hi, my name is Audrey and I am a Jenn-Air employee. I would appreciate the opportunity to assist you with your microwave. Please send me an email through our customer service address, NAR_JennAir_CustomerExperience@JennAir.com and type 'Attention: Audrey' in the subject line. Please include your full name, phone number, and model/serial number, and I will look into the issue for you.
and type 'Attention: Audrey' in the subject line. Please include your full name, phone number, and model/serial number, and I will look into the issue for you.
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