Question about Whirlpool MH1140XM Microwave Oven
I have a whirlpool model M 1150 the other night we put a popcorn in and was ok the next bag the turn table and light went on but it never heated up. tried diferent setting but no heat. Thanks Larry Taylor
Would it be posible your not setting the heat, is your microwave a popcorn setting one touch bottom.
It is also posible that the magnetron is not working, could be several factors, bad cap, power supply if it has one and bad magnetron. Also thermistor default may also not letting the magnetron to firer up.
You or going to have to figure how it works. also bad door switch may cause this.
To see were you or going if you know were the magnetron is then you most know that is is supplyed by a transformor, step up, at the primery winding , with a voltmeter set on ac voltage see if the voltage is present when starting the microwave, if the voltage is there 115vac you will notice will pulse on and off depending on your power level setting and there is still no heat then it's your secondary of the transformer that is not working.
This could be bad cap, power board if there is one, bad magnetron. Do not test the secondary voltage unless you understand it's very high.
If there is no voltage present, don't go farther, check your swithes, thermistors.
Posted on Jan 20, 2008
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Posted on Jan 02, 2017
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