SOUNDS LIKE FLAME SENSOR SWITCH OPENED OR CLOSED AND THE UNIT THINKS IT OVERHEATED AND TURNED THE FAN ON TO COOL IT MUST FIND SHORTED FAN SWITCH
SOURCE: Fan stopped working in JVM1533BD microwave
I assume you're talking about the hood fan which ventilates the cook top and blows air through the grille across the top. If so, it's okay to use the microwave with that not working, but if you boil something on the stove, an external fan is definitely needed to keep mositure from going up into the microwave controls. If the cooling fan INSIDE the microwave (behind the keypad) is not working, then you do NOT want to run it unit it is fixed. 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 You can find helpful exploded view diagrams and order parts by entering your full model number (without the suffix) here: http://tinyurl.com/gv383
SOURCE: microwave cuts off after heating for about 3-4 minutes
There is a overtemperature device inside that is shuting you down until things cool off. Take the cover off and clean up everything as much as possible. Grease from the cooking can get all over everything inside and collect dust buildup enough to obstruct the airflow and cause overheting.
SOURCE: exaust vent/ fan very weak
In your duplicate post, you mentioned your model, so here you go:
This is due to poor air flow, either to a blockage or a problem with the internal cooling fan or hood vent exhaust fan.
Are the grease filters or charcoal filter clogged?
You may want to check your owner's manual for info on checking the
filters. Grease filters can be cleaned, but charcoal filters must be
replaced about every 6-12 months.
The installation manual will tel you if there's some error in the installation setup.
You can download Maytag
owner's manuals and installation instructions here.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
SOURCE: Kenmore microwave - unresponsive keypad
Repaired the unresponsive keypad on my older Kenmore (model 721.68100): Unplug. Remove integral cover for top and sides which is held in place by 5 metal screws. The cover then slides toward the rear. Unplug two connectors to back of keypad and clean them (I used contact spray cleaner). Some of the components retain a charge even when unplugged.
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