Question about KitchenAid KCMS185J Microwave Oven

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Always on My KCMS 185 JBL-3 microwave is always on, unless you open the door or unplug it. The door switch seems OK, since opening it will turn on the light and shut it off, but as soon as the door is closed, it starts operation (the plate won't turn unless you set the timer)

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  • 3,740 Answers

Most probable failure is this VERY expensive part:
http://www.appliancepartspros.com/part_details.aspx?part_id=4327040&image=1

This is what controls the Magnetron operation via the relay on the PCB. If the Magnetron is operational without programming it usually is the cause of the problem.

I would recommend that all wiring to the control board be verified before considering replacement of the board. The price of the board to me is off the charts in cost! Not sure what the original purchase cost was but the price of this board would make one consider unit replacement vs component replacement when you add in the cost of the service call.

I am sure this is not what you wanted to hear.

Thanks for using FixYa,

Kelly

Posted on Apr 12, 2010

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6ya6ya

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Posted on Jan 02, 2017

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