Night Light Microwave works fine, except when i try to turn off the worklight/nightlight it will not go off unless i push very hard on the keypad, or by taking the control pad out and then pressing the key pad.

Check the three microswitches in the latch assembly.

sounds like a key panel or control board

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.

ballast or transformer is bad

Q - While trying to change the light bulb on the oven, the bulb broke. When it did, it threw the circuit breaker and the whole oven went out. After resetting the breaker, everything on the oven works except there is no power to either light socket. Any ideas or suggestions on what to replace?
A - You tried to change the light bulbs with the power still on.....tsk tsk!!
Hate to say this....but probably blew out part of the circuit on the smart board ( the brains behind the key panel you touch ) when the short blew. The light relay on the smart board may have been damaged but 9 out of 10 times when I check them, the board itself is damaged.
check out this problem.
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My Kenmore Elite microwave (don't have the model number in front of me) also mysteriously locked its own keypad (we were sitting in an adjacent room, heard a strange beep, and got up to find the LED reading "Locked."). I pressed and held down the Stop/Clear button for ~10 seconds and it returned to normal.

We see this a lot. The problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

Found this in the GE section instead of Maytag, but we're happy to answer it anyway.

The first thing to try is a "hard reset". Unplug it from the power line for a few minutes, plug it back in, set the clock, then try again.

Let us know if the hard reset doen't fix it.

If not, you may have a shorted keypad or bad control panel, either of which we can repair economically.

Please write back with more details if you need further help.

check highvoltage section and diodes and finally replace magnetron...

This is a problem with the control panel assembly, which we repair nationwide for $39.95. This is most often caused by the filaments shorting when the bulb blows, or by not disconnecting the microwave from the power line when removing or installing a bulb. Full information on our service is available at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk