Question about Whirlpool MH7135XE Microwave Oven

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Is it worth repairing or replacing a control/circuit board in this microwave?

The microwave works fine, but the cooktop light over the range burnt out and after replacing the light stays on permanently. I think this means the circuit board was damaged?

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I agree that the cost of the repair outweighs the cost of replacing the whole MW. It appears that the solid state device that takes the keypress from the keypad to control the light circuit is shorted so the light stays on all the time. Most likely from a lightning surge. Use it the way it is. You will hurt nothing without a light in the socket. My info indicates this is a model from the late 1990's so it is about 15 years old. It is not hard to changeout a microwave. You might need some help lifting it into place. Choose one as similar as possible to the old one.

Posted on Nov 14, 2014

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It depends on the cost of the repair, You can replace a conventional unit for about $200-$300.00. Unless you can diagnose the issue and repair the item, I'd probably replace the unit, especially if it's an older unit.

Posted on Nov 11, 2014

  • perfectpear Nov 12, 2014

    That's why I'm trying to find out .. what the cost of the repair would be? I've seen several comments about places that repair circuit boards but they all seem outdated (i.e. microwavedisplay.com). I don't know what the replacement cost for the board would be or if I could put it in myself.

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But we see (and repair) this a lot. The problem is on the control board, which we regularly repair for $39.95.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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