Emerson MW8779W Microwave Oven Logo

Question about Emerson MW8779W Microwave Oven

1 Answer

ARG! Ok I have a model MW8780SB. Cant find it any where so I picked the closest model #. Neways...The key pad works and everything,however,when I put any thing on cook nothing works. I think that maybe there is a door issue or something cause it only wont work for the cook functions(popcorn button,start button for cooking,etc..) Help me! What do I do!

Posted by Melissa Bessler on


1 Answer

William Miller

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Emerson Master
  • 9,179 Answers

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

For more help from Emerson http://www.emersonradio.com ; Get help using your appliance 1-800-898-9020 ; Get help locating a servicer or parts 1-800-695-0098.

Many Emerson microwave manuals are available here: http://www.emersonradio.com/owners/MWO%20manual/

Posted on Oct 22, 2007


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


Were do I find a replacment light bulb for my Emerson microwave. Model# MW8780SB

Emerson Microwave Parts Here is the manufacturer's number for your part 26QBP0930 The website provided carries the part.

GE Profile Microwave, model JES2251SJ02, just stopped working.

1= reset the c.breaker from your home see if are tripped and reset.
2= open for thermal fuse open, test continuity with DVOM OR VOM and replace.
3) test the power cord for open or broken or break.
4= check the switch for door maybe is open must be continuity until 0 , or swtich defective see the diagram attached. God bless you

Buttons don't work

Hello there:
This is normally caused by a faulty touch pad that is failing These touch pads are replaceable but they can cost about 60 to 100 dollars depending on the exact make and model ok
I hope this is very helpful for you
Best regards Michael

Button panel does not work or it starts making 'pick-pick' noise

The touch pad seems faulty, there may be moisture behing the first touch pad film, suggest replacing touch pad as it cannot be fixed, Phil

My microwave emerson MW8780SB doesnt heat everything else work

what is wrong is that your megatron went bad, is this a counter top unit or is it a built in? if it is a built in i would suggest fixing it, and if it is a really expensive counter top i would fix it, but the part cost about $80 to $100. so it would be up to you. if you want to go for the fix write me back and i will walk you through it.

Cooktop Light / Night light

It is the control panel. You can actually just replace the circuit board on the control panel and it should fix this.

Turn off Demo Mode on goldstar Microwave

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for maybe an hour.

Then let us know if the hard reset does not fix it.

Otherwise, try holding CLEAR for 3 seconds, then try each pad for 3 seconds.
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top Emerson Microwave Ovens Experts

David Shaub

Level 3 Expert

2994 Answers

Cindy Wells

Level 3 Expert

6470 Answers

Oloyede Monsuru

Level 3 Expert

1468 Answers

Are you an Emerson Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides