My microwave keep showing DEF1 and even pressing clear, it goes away but immediately comes back..how to fix that?

It sounds like your membrane keypad may be shorted.

If you'll contact me with the full model number from your tag, I'll give you all the information you would need. In many cases, this is a do-it-yourself repair.

http://www.microwavecontrol.com

Sounds like your losing power, have you tried it on a completely Different circuit??? Either that or bad fuse or connections inside of microwave.

Your circuit board has a small chip in it that allows the settings to be changed. The chip has gone bad. Usually any good electronics repair person can fix the problem. Ask your local dealer for a reference.

I have a hunch the microwave panel is going into Child lock mode and preventing you from operating the clear/off function. Not sure which is the middle switch that you replaced. I would suggest you give the panel a good wipe with a clean damp cloth to remove all grime etc. Before selecting the start/pause button press the Clear/off button for 3 secs and see if the L (lock) shows up on the display. Next press again for 3 secs to see if L goes away.

This way you have confirmed the panel is not in lock mode before you start next operation. Provide your observations in the comments section so that I can assess what the next step should be.

You have a shorted membrane keypad.

You can find links to helpful exploded view diagrams, part ordering help, and repair help here.

I recommend that you bookmark that link to your favorites.

follow this steps and fix it. God bless you

1. Controller is confusedA power surge or random non-reproducible action of the universe may have resulted in the controller's program ending up in an infinite loop. Pull the plug for a minute or two to reset it.
   
2. Defective Interlock switchesThis can result in the controller thinking the door is open and ignoring you.
   
3. CleaningCleaning solutions (spray cleaner) may have gotten inside and shorted out the touchpad or controller. If this happens remove the touchpad, let it air dry for a few days, and then attach it back on the microwave.
   

Pressing the Clear/Pause button works. Sometimes. Most of the time, about a microsecond after pressing Clear/Pause, it goes right back to def1. Most of the time, pressing ANY button doesn't work. Usually takes me 10 to 20 tries to get anything to work. My microwave is about 3 months old. I will never buy Emerson again.

So many microwaveso have issues because there are millions and millions of them. You need to study the booklet and set aside some time to explore it. Write down what you do and assess it. In about an hour you'll figure it out. Download the booklet! Ovens are similar with various timers. It gets complex owing to the size of the electronic controlsystem.but totally fixable!

That's the "Auto Weight Defrost" mode. Press the Clear/Pause button to get out.
Here's a link to the manual http://www.emersonradio.com/owners/MWO%20manual/MW8106W.pdf

AHD_NZ

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Guest

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

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