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Inspect the power cordUnplug
the power cord and check for voltage at the outlet. Also inspect for
damage, shorts, or burn marks that can be a possible safety hazard.
Bad door switchIf your
microwave does not work at all and you know everything is plugged in
properly and the outlet is functioning, then also check the door hooks
and the door release button. Using a volt-ohm meter on RX1, check your
terminals. When your microwave door is closed you should have a reading
of zero. Once the door is open the reading should change to infinity. If
these readings do not match up, replacement of the door switch is
Blown fusesTo determine
if your fuse has blown out, which may attribute to your microwave not
running, you need to pull the fuse out using a pair of fuse pullers. Lay
it down and using a volt-ohm meter on RX1, check both ends of the fuse
in question. If you do not get a reading of zero, then you will need to
replace the fuse.
Bad fan motorLocate the
fan and remove the leads. Again using the volt-ohm meter on RX1, check
the terminals. If an infinity reading is displayed, it means that the
fan has gone bad and requires replacement.
this a problem a dust in the control board keypads, You must open the keypad, and clean any connector with contact cleaner specially the ribbon cable or plastic and use pencil eraser for to fix the corrosion, dust, and try again. God bless you
Reset the clock. Press "Clock" and the correct time, using
the number pads. Press "AM/PM" if applicable, and press "Start" or
"Clock" to confirm.
Press "Timer On/Off" to reset the timer if nothing on the
touch pad will operate. Use the number pads to select a new timed
amount, if desired, and press "Timer On/Off" to start. Press again to
Press and hold "Clear/Off" for three seconds if the timer
will not function or is blinking when you touch the pads. This will
release the "Child Lock" feature. Make a new touch pad selection.
Disconnect power to the microwave if following Steps 1
through 3 does not resolve the blinking timer. Wait a few minutes, and
then restore power to reset the microwave.
However if the problem persist the display board main control board is faulty
Sounds like the pads that you push on the touch panel are stuck, will probably have to replace the whole touch panel. On units installed over the oven, they typically plug into an outlet in the cabinet above the microwave. if not, try flipping your circuit breakers until you find the one that shuts off the Microwave.
Never run the microwave without a load (something to heat)!!! That kills the microwave generating parts.
Sounds like a 'thermal' protect switch is activating after running. Make sure that (if the unit is mounted in a cabinet) that there is sufficient space around the unit for proper air flow and that nothing is blocking the vents. Try setting it on a counter top and heat something. If it works properly and doesn't shut off, the venting space is the problem. You may have to have the cabinet that it sits in redesigned for more clearance.