Question about Maytag MMV5000 Microwave Oven

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MMV5000 keypad is intermittent

Seems to work when it decides to. Unit is 8 years old with soft membrane keypad. Sometimes it works correctly every tiem and other times it might take 5 minutes of trying to get the cancel to work and then start over.

Posted by jeff2056 on

  • Anonymous Dec 20, 2007

    Keypad does not work

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2 Answers

William Miller

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The keypad has failed, and that's usually economical for a do-it-yourselfer.

It would need a new "control assembly switch/mem (wht)" which is otherwise known as the control panel frame assembly with membrane keypad.

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

It's reference number 1 on diagram 2, the control panel.

Ironically, the white version runs about $160 but you can save about $55 by ordering the bisque or stainless steel version.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Nov 26, 2007

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Craig Shelton

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You have a stuck button on the keypad.  With the cost to replace the part I would replace the microwave.  Would appreciate a solved rating for expert advice.

Posted on Oct 25, 2007

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The keypad has a short in the membrane, which means the keypad control board will probably need to be replaced.

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Depending on part availability I would recommend the replacement of the keypad "membrane often shorts" but they may offer the control board with it since it ties together.

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I have samsung microwave model number ME 1240SC. my front panel touch screen is not working properly, when i press the keys it is not working. so i think i need to replace the touch screen. so please...


That model does not user a touch screen, it actually uses a standard membrane keypad.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes. Then try it again.

If it's still not responding, I would suspect your membrane keypad has failed.

Is it possible that some spray cleaner accidentally got into the controls?

Direct spraying of cleaners on the keypad and steam from the cooktop can damage the controls.

I always recommend that you spray non-ammonia cleaner on a soft cloth (not a paper towel which can scratch) and gently wipe the keypad.

And I always recommend that you use the vent fan whenever you're cooking on the stove top to keep heat, steam, and grease out of the controls and door panels.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

If you wanted to order a new membrane switch / keypad, the part number is DE34-00145F and you can order it from the Pros here. They're our favorite supplier.

Otherwise, this is a pretty standard 1200W microwave, and you may find it better to simply replace it instead of repairing it.

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

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My kenmore microwave is 2 years old. the keypad no longer functions. Can it be replaced? would it be worth it?


Is it possible that some spray cleaner got into the controls?

I always recommend that users instead spray cleaner on a soft cloth then wipe the control panel.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

On some models, the membrane keypad is not available as a separate part, so you would have to order the control panel frame assembly which comes with a new keypad.

In this case, you simply move your circuit board into the new frame. That is a simple do-it-yourself job.

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.

Then you unplug the keypad (as per the photo below) and move the circuit board into your frame.

34374fd.jpg

Some connectors on the relays may have a lock:

positivelock.jpg

You can find handy exploded views and get part numbers by entering your full model number at the
Sears Parts Site.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

Once you have the Sears part number, you can usually get parts cheaper here.

If you might be interested in having us so the work for you, we charge $39.95.

Feel free to contact me directly.

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

William E. Miller
[email protected]
http://www.microwavedisplay.com

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Found this Samsung model problem in the Welbilt section but will try to help just the same. Hope you find it.

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.

You can download your owner's manual here:
http://downloadcenter.samsung.com/content/UM/200303/20030324114252562_DE68_00064C-02.pdf

I always recommend that users spray the cleaner on a soft cloth (not on the keypad itself) then wipe the control panel off.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

You can order a new keypad (membrane switch) here:
http://www.samsungparts.com/search/search.asp

Please write back with more details if you need further help.

We're happy to help and we appreciate your thoughtful rating of our answer.

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Based on my 25+ years of experience, I would say the "8" key on the keypad is shorting, requiring a new membrane keypad.

Is it possible that some spray cleaner got into the controls?

I always recommend that users spray the cleaner on a soft cloth (not on the keypad itself) then wipe the control panel off.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

But of course, the keypad may be damaged or worn out, or control unit may be damaged.

To order Panasonic parts see http://www.pasc.panasonic.com/epartr

To download a Panasonic owner's manual see http://service.us.panasonic.com/operman

To find an authorized Panasonic servicer, see http://www.pasc.panasonic.com/WhereTo/FindServicer.asp?Pass=1

For FAQs, see http://service.us.panasonic.com/faq/faq.aspx

Please write back with more details if you need further help.

We're happy to help and we appreciate your thoughtful rating of our answer.

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Is it possible someone may have sprayed cleaner directly onto the keypad area?

This causes moisture to get into the keypad and sometimes onto the control board.

This could mean that they control panel frame with keypad (membrane switch) would need to be replaced.

Can you give more details on the cleaning?

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Your keypad or control board may have moisture or grease on them, but your keypad (membrane switch) is likely going bad. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find a keypad (if available) by entering your exact model here: http://www.samsungparts.com/search/search.asp

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E4 normally indicates a problem with either the keypad or a sensor. Since the oven is resetting, it may be the keypad or even the control circuit board. Below is my info on keypads, which may help, followed by more info: You may also have a bad keypad, which in many cases can be replaced. KEYPAD TROUBLE 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 fan when boiling on the stove top (for over the range models), direct 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. DISCONNECTING AND CONNECTING THE KEYPAD 1. The keypad connection is the green or blue translucent plastic strip that plugs into a connector near the edge of the control circuit board. 3. There are two tiny tabs (one on each side) on the hood of the connector that you can gently pull up on to unlock the connector. Use equal and gentle fingertip force when pulling up. 4. The old keypad strip will lift out. 5. Put the new keypad strip in, making sure both sides are down fully. (If you are not installing a new keypad, clean yours with a pencil eraser or a soft cloth and alcohol.) 6. While holding the strip down, push the connector hood back down to lock it. -- If your keypad (membrane switch) is bad, you should be able to get one here: http://www.samsungparts.com/search/search.asp If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk If you still have questions, please post again.

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