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Someone cleaned our microwave and the display stopped working, but the microwave still worked. Now after two weeks, the stop and start button will not work, therefore our microwave is useless.
We just purchased a new keypad, but do not know how to take the old one off and replace with the new one. Can someone help us with directions of how to fix this microwave?
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"Wipe the microwave oven inside and out with a soft cloth and and warm (not hot) mild detergent solution. Then rinse and wipe completely dry."
"Clean the outside surface of the microwave with soap and a clean damp cloth. Dry with a clean soft cloth. To prevent damage to the operating parts of the oven, do not let water seep into any vents or openings."
If there is moisture damage, it may dry out by itself if you leave it overnight with the door open. If not, the warranty would be voided and you'd have to arrange for out of warranty service.
If there is no moisture damage, and it failed not due to outside forces, then you should contact the manufacturer to arrange warranty service.
The Keypad is either faulty, or disconnected. Open the case, and remove the screws, holding the outer shell on. Inside, there should be a small board that covers the Keypad. Check to see if there is a ribbon cable, or some other type of connection going from the board to another part of the microwave. If all of the wires are connected, then you will probably need to replace the keypad.
Go for a warranty repair anyway. It may be the magnetron, and the clicking is the big condenser discharging. https://www.lg.com/ca_en/support/warranty
Microwave Ovens (Over-the-Range):
see this causes and fix it. God bless you If you
have 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.
use the common sense,logically, fix it. 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.
see the next steps: USE THE commons sense . God bless you Lights come on, but can not program unit, Touchpad dead If
you have 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.
liquid probably has entered keypad laminate; causing a short. unplug unit, direct warm hairdryer to entire keypad; plug back in; and hope for the best. if no luck; replace keypad. also never spray anything directly onto keypad; always clean with a moistened towel with light force.
Same issue here. LMVM1935 about 2 months past warranty keypad stopped working. Apparently they need to add something in the manual about not boiling water on the range over which the microwave is installed (gee who would have thought that there would be steam over the cooktop and we should seal the membrane?).
The silver traces on the keypad got corroded and no longer conduct. After complaining to Sears (NO HELP) and LG (EVEN MORE INEPT) and running on 30sec button for about 6 months, I found a replacement keypad $30 w/ shipping and didn't break anything taking the door apart, thanks to the parts list link above. Thanks Rickzilla!
Life's Good, Their Keypad SUCKS, or apparently we are the only people that boil water anymore.
This model does have a child lock. If it's on, the display will say "LOCKED".
It is turned on and off by holding dfown the "0" key for 4-5 seconds.
You may also have a bad keypad, which in many cases can be replaced.
A bad keypad may be worn out due to age, damaged, or it may have gotten wet or otherwise contaminated.
Moisture and contamination can be caused by spraying of cleaners, by storing the microwave in an unheated garage or shed, or infestation.
I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller.
Apply an alcohol-based cleaner (such as the purple kind) to a cloth (paper towels can scratch) and gently wipe it off.
I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics.
Repost if you need more help.
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