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follow the next step and use the common sense: God bless you a stuck key or non-responsive key, most of the time you will have to
replace the keypad for this microwave oven repair. If your keypad is
connected to your control board by a flat ribbon wire, try disconnecting
it and clean the silver contacts with an ordinary pencil eraser. After
cleaning, plug it back in and try it. If it doesn't fix it, replace
the keypad unit. Some units actually have keypad tests to confirm your
diagnosis of a bad key.If your keypad and control is the same
unit, replace that unit. Another note, unlike stove/oven keypads and
controls, most microwaves do not have error codes or tests to
distinguish whether it is truely the keypad or control. Most of the
time, it is the keypad that needs replacing, but a small percentage of
the time it can be the control. Check the tech sheet if they can point
you to the right part.
There are electrolytic filter capacitors on the control board which, due to age, can weaken, causing some bizarre results.
We've repaired several of these boards successfully, upgrading the capacitors and relays at the same time. It runs $39.95 and comes with a one-year guarantee.
They're the same as the Whirlpool RM286- and RM288-type models.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
Yes this is a touchpad issue. As you have noted the crisp button is stuck and this is the cause of this. You can try removing the keypad and push up the pressed button. If its jammed then replacing it is the only way.
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