Question about Whirlpool MH1150XMQ Microwave Oven
This is an odd failure for this model, assung yours is a model MH1150XMQ, since it does not have a humidity sensor. So it sounds like you may have a bad kepad or controller, or maybe moisture or grease got onto the board, casuing it to fail. 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 Below is our information on keypads, too: 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 MEMBRANE SWITCH (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. You can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383
Posted on Sep 28, 2007
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