Question about Whirlpool MH7135XE Microwave Oven

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The light bulbs in the hood of my Whirlpool microwave model # MH7135XE don't work even after replacing them twice. What is the problem.

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  • michael jensen Jan 02, 2011

    I don't see your post for the problem.

  • michael jensen Jan 03, 2011

    I have a Whirlpool microwave hood combo model # MH7135XE and both bulbs outside in the hood underneath don't work. I have replaced them twice so I know it can't be the bulbs. Someone said that it might be a circuit board. Any solutions?

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Hi,

When the microwave lights don't work, the problem is either the light bulbs, or the relay on the display control board. If you've already replaced the light bulbs and that didn't fix the problem, the relay is shorted and the display control board will need to be replaced. It's very common for the relay on the control board to short out when the bulb does because the relay is very weak. The only fuses on this microwave cut out the entire display and all the lights. There is absolutely nothing between the control board relay and the lights other than wire.

You just unplug the microwave, then remove the screws going into the top plastic vent grille. Remove the vent and that will expose a screw at the top of the control panel. Remove that screw and the control panel will pull up and off. That will allow you to access and replace the control board.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Jan 04, 2011

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week or so.

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.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.

NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly for more information or to arrange repairs.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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In many cases, you have to break out the glass from the bulb and then use small needlenose pliers to unscrew the bulb base.

Once you get the lamps replaced, if they won't turn on or turn off, then you also have a damaged circuit board, which we regularly repair nationwide for $39.95 postpaid.

Details are at our site, linked is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

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We see this a lot. The problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

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We see this a lot. The problem is probably not the wiring, but on the control panel, which we regularly repair nationwide for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

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The controller needs to be repaired. We regularly repair these control board assemblies for only $32.50 nationwide, and that's much cheaper than replacing the board. For safety, disassembly and other info see http://tinyurl.com/yzjozk

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