Question about Maytag Appliances Over-the-Range Microwave Oven

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I have a Maytag MMV4205BAW over the range microwave. I woke the other day to find the circuit breaker tripped. I leave the light on for a night lite. After resetting the breaker the undercabinet light is out, the interior light, out, the turntable will not turn and the microwave sounds as if it is not operating (very different sound). The control panel, is fine (timer, settings ect. ). The unit is 5 years olds. Any suggestions.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

jsrock516
  • 5911 Answers

SOURCE: MAYTAG mmv4205aab OVER THE RANGE MICROWAVE

It could easily be a bad line fuse and/or line filter. To access you will need to unplug the unit and remove the outside case. Inside the unit, where the A/C power cord comes in, there should be a small circuit card (part #237068) located somewhere with a fuse mounted on it. This is your input line filter board with line fuse. Replace the fuse, first and see if this fixes your problem. This is a 20amp appliance fuse that you can purchase at any hardware store. Make sure you place the cover back on the unit BEFORE you plug it in. It is not safe to have this area of the microwave exposed with power applied. High potentials in the 4,000 volt range are present! If the fuse does not correct your problem, the circuit card runs about $26.00. Good luck and hope this fixes your problem.

Posted on Aug 04, 2007

rickzilla
  • 706 Answers

SOURCE: MAYTAG MMV4205BAS Running but not heating

If the food in the cooking compartment is not heating at all, then you may have one of several components related to microwave energy generation that have failed or became disconnected internally.
Magnetron Tube, HV Capacitor, Filament Transformer or any number of sensors that disable power to the system. The control board could also cause the system to noty function correctly.. You wanted general inputs.. there ya go.. LOL
Not sure I told you anything you didn't already know but you should ask the tech what he did after he gets it going...
Regards,
Rick

Posted on Nov 28, 2008

thedayos
  • 57 Answers

SOURCE: My new maytag centennial electric keeps tripping

Hi Matt
I'm not sure that swapping out the breakers to higher rated ones will give you a solution so I'll throw in 2 cents to see if my advice holds true. Let's start by asking this. Is the appliance "rated" at 220 volts at 30 amps per leg. I assume this from your post as to what it has been rated. Next - How long is the "run" of wire from the junction box to the outlet where the appliance plugs in? This usually does not matter in most households but if the run is of significant length it may need a larger gage wire to support the current draw of the appliance. Lastly, and perhaps most importantly, are the lugs and wire connectors tight at the outlet, the plug, and the breaker box. A loose connection will ramp up the current fast. This is assuming the first two items were met. Tell me if any of this helps and we'll work it out from there.
Thanks.
Len

Posted on Feb 28, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: I have a Whirlpool MH6130XEQ-0 microwave that doesn't heat food

With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.

The diode is a fairly cheap fix, and your magnetron is still under the part warranty, but you would have to pay labor.

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.

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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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)


http://www.gallawa.com/microtech/mag_test.html

If within the magnetron portion of the warranty (5-9 years) but out of the original full warranty (1 year), the manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If nothing else, you can save about $50-75 if you remove it from the wall and take it to a Whirlpool-authorized servicer.

You can find your nearest Whirlpool/Maytag-authorized servicer here.

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 Whirlpool owner's manuals and installation instructions here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Mar 06, 2009

landsend
  • 1066 Answers

SOURCE: 2008 maytag refridgerator tripping my breaker

take it back as it's a fire hazard.  Get a replacement.  

Posted on Apr 01, 2009

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1 Answer

Used the microwave last night. Later I noticed no light display for the clock. Come to find out microwave lost all power. Model number smh9207st


If there are no fuses or circuit breakers, the unit could be down and out. Check you power box for any tripped breakers.

Dec 09, 2014 | In Microwave Ovens

1 Answer

My maytag microwave blew the ciruit breaker a several times last night. I reset the circuit breaker each time. Then the last time, I reset the circuit breaker and the microwave did not get power back....


If there's no other appliance on that circuit, then please stop trying to use the microwave. You could be dealing with a dead short, and those sometimes leave people,,,DEAD!

I would be really cautious about trying to use it anymore without checking it first for a direct short.

You need to allow the circuit breaker more time to reset, flip to off and give it 2 minutes, then turn it back on. You should feel the distinctive click, as well as hear it if it's working properly.

Circuit breakers can go bad after repeated failures within a circuit.

The outlet could also be damaged now, but normally it's the circuit breaker getting too hot with repeated failures.

If there are a number of other items on the same circuit, then try the microwave in a plug that you know has no other items being used at the same time, preferably while wearing heavy duty leather insulating gloves to protect yourself from any possible shock. If the circuit breaker blows, you've got a possible electrical short within the microwave.
Good luck!

Mar 27, 2012 | Microwave Ovens

1 Answer

How can I view installation Instructions on a Maytag over the range microwave MMV4205BA


It depends on your full model number:
You can find helpful exploded view diagrams and order parts and accessories by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Dec 17, 2010 | Maytag Microwave Ovens

1 Answer

Blowing main breaker


I have a hard time believing that the home's main breaker is tripping instead of the branch circuit breaker that feeds the microwave. I suspect it is really just a difference in terms. You should disconnect it and try using in another outlet - preferably one on a different circuit if possible. If the breaker continues to trip; this appliance should be disconnected and either be discarded, repaired or replaced before using again.

If the microwave works as expected (on a different circuit), it may indicate the original circuit is overloaded. Microwave overs are supposed to be installed on a dedicated circuit. This means only one outlet is on the circuit - no other loads (lights, appliances, etc.) are permitted on this circuit. A microwave typically requires 10 Amps or more when on "high" and will require a significant portion of the power supplied by a 15 or 20 amp circuit breaker. There is little unused to power much of anything else. If other appliances go out when the microwave trips the circuit breaker, you should contact an electrician to have a dedicated outlet installed for the microwave.

I hope this helps!

Sep 23, 2010 | Maytag Microwave Ovens

1 Answer

I have a Maytag mmv4205baw Microwave oven. It


the unit that creates the microwaves called the "magnetron" has gone bad, or the circuits powering the magnetron have gone bad. there really isnt a cheap way to fix it, and not a undangerous way to fix it yourself. if your really like the microwave and dont want to part with it, you can try finding a repair shop that will fix microwaves, but they will probably tell you it would be cheaper to buy a new one. sorry

Jan 15, 2010 | Magic Chef CMV1000B Microwave Oven

1 Answer

Microwave no longer heats, makes more noise than it did when it was heating. Microwave is a Maytag, model # MMV4205BAW. Thanks.


Sounds like the magnetron has failed. There are some high voltage circuits that feed the magnetron and you can potentially get hurt if you don't know what you are doing. Would recommend you have it serviced by a professional if you want it fixed, otherwise look for a new one since the cost of repair can come close to the price of a new microwave oven.

Nov 27, 2009 | Maytag Appliances Over-the-Range Microwave...

2 Answers

The past Few days the microwave would trip the breaker. today I went to use it and it worked for 30 seconds when I checked what I was heating and turned it bakc on and it would not work


Microwaves that are either built in, a part of the oven, or over the range are on a dedicated circuit by law. This means nothing else could have tripped that breaker but the microwave.
If it has a problem severe enough to trip a 20 amp breaker several times, it is only getting worse each time you reset the breaker and turn it on.
There is a possible chance of fire. I recommend you turn the circuit breaker off and replace the microwave. Is it a plug in, or over the range type?

May 18, 2009 | Microwave Ovens

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