Question about Whirlpool MH1150XMQ Microwave Oven

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Microwave does not heat

Our microwave is around 3 years old. it still runs, but does not heat food. Is there a way to repair it??

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Re: microwave does not heat

It could be any multitude of issues from a faulty magnetron,a bad high voltage diode, a door switch issue or a faulty circuit board. A magnetron for your model is ~ the $60 area. A Circuit board is ~ the $100.00 mark. If your a wiz at electronics I would say give it a go and try to repair it yourself. Otherwise I would say that a new microwave oven would be your best bet. A technician may charge you up to $250 for the work they will do, bringing you to around the same cost of a new microwave with a warranty. Hope this helps. P.S. If you are interested in buying the parts and fixing it yourself, may I recommend this site: They are top notch and really helpful.

Posted on Jul 26, 2007

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No Heat.

Hi dadedulitl,

When you say "putting out no heat", I take that to mean it's not heating the food up. When a microwave suddenly stops heating food, but still appears to run, it's usually a defective/dead magnetron. Prices for replacement/repair will vary, you will need to find out what that service costs in your locality before having enough information to decide on repair or replacement.

When my first microwave lost it's magnetron (~20 yrs ago), it was 5 years old at the time, and the cost of buying a new oven was only a little more than the repair - but I had the repair done anyhow. Since then, we've replaced the entire oven instead (twice). Newer one's may have more power/less energy wastage, etc.

If it's ~ 3 years old, do you have an extended warranty?
If so, you might be able to use that (check the terms of the EW). Most standard warranties are for 1-2 years max, so unless you bought the EW, you're probably back to deciding between repair and replacement.

If I can be of further assistance, or if you have questions about any of my response(s), please let me know before rating me.

If this solves the issue, please rate it accordingly. My goal is to earn a "FixYa" rating from everyone I help.

Thanks for using,


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