Question about Microwave Ovens

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Tappan microwave TMV151F will lose power during operation. I think around 3 or 4 minutes.

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  • Anonymous Dec 08, 2008

    This is the second Tappan TMV151F I am returning for the same issue. The I have losses power after 3 1/2 Minutes and takes about 15 - 20min. to re gain power.

  • dmwoods Dec 29, 2008


    I am having the same problem with a new Tappan TMV151F and can't get anyone to come and fix it. The Lowe's store won't take it back.

  • mines3695 Mar 24, 2009

    My TMV151F Tappan has an error -SE- and will not run, I have tried unplgging it and plugging back in to try and reset it, but no luck. Has anyone else had this problem or knows what this -SE- code means.



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The magnetron is overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

This is usually caused when the internal cooling fan is not running or by a magnetron that is failing.

When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

I'm instead talking about the internal fan which comes on automatically whenever you microwave.

It is vital that the cooling fan runs, or the magnetron will be

It may also be a clogged exhaust duct or filter. Grease filters should be cleaned regularly and charcoal filters should be replaced (not cleaned) every 6-12 months.

You can refer to your owner;s manual for that info.

You can download most Maytag / Whirlpool / Tappan owner's manuals and installation instructions here.

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 helpful exploded view diagrams and order parts by entering your full model number here.

There should 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.

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

Posted on Dec 13, 2008

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I had the message -SE- showing up on my TMV151F. I opened up the control panel and made sure all the connectors were secure. I noticed the red connector was not in all the way. I also noticed that the grounding wire behind the mini-manual was touching the back part of the board so I separated it. Not sure if either of these actions fixed it or if by some miracle it fixed itself. It is working fine now.

Posted on May 14, 2009


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Posted on Jan 02, 2017

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Hello, Sarkis -

I found 4 descriptions of what may be causing the noise when you operate your microwave oven. See the information on all 4 possible causes here:

Note: Safety advice I have read regarding microwave oven repair is to have a microwave oven repaired only by an authorized repair technician. It is not do-it-yourself work.

Any repair might not be worth the cost compared to purchasing a new replacement. A microwave repair technician authorized to work on Tappan microwave ovens will be able to evaluate what is causing the loud noise and give you an estimate of the repair costs.

Note: If you find you need to replace your microwave oven, please be sure the old microwave oven is sent to electronics recycling.

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You can download your owner's manual free here.

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

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