Question about Emerson MW8778 Microwave Oven

1 Answer

My microwave lights blinked off right after i closed the door after checking meal and re-entering time. i unplugged it and tried a different socket nothing happens no sound lights for time or inside the microwave

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,992 Answers

I suspect the interlock monitor switch in your microwave oven is the culprit. This is one of several switches operated by the door latches. It's designed to blow the fuse if you try to run the microwave with the door open. The switch is probably stuck, or is out of adjustment (which can happen if the oven door gets closed hard), and when you restarted the oven it blew the fuse. It is possible to adjust or replace the switch as necessary, but it might not be worth it. You should have a professional do the repair as there's a chance of microwave leakage if repairs involving the door aren't done properly. Between labor and parts, the repair cost might come close to (or even exceed) the replacement cost for a small oven.

Hope this helps, and thanks for using Fixya!

Posted on Nov 09, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My panasonic genius prestige inverter microwave has started to click off after I enter the power & time. Sometimes it will work fine. Sometimes it takes 2 or 3 times of entering then cleaing the i


Check the door latch switch inside the oven. The 4 switches where the door hooks latch on to when the door is closed has to engage with the door hooks to tell the oven that the door is closed. loosen the 2 phillip screws that holds the switch assembly and slide it to adj. and ensure that the switches close when the door is closed.
Sometimes the switches go bad and cannot make contact and must be replaced. If you see that the connectors on the switch is discolored or overheated replace the switch, it is bad.

Jan 15, 2015 | Panasonic Genius Prestige Inverter...

1 Answer

Stopped cooking


This is technical!!! Don't know how handy you are but the biggest reason for microwave failure is a diode (HV) between ground and the lead to the magnatron. usually mounted low down low on the right inside of the unit. Also, there are about three microswitches in the door closing latches to make sure the door is properly closed. Sometimes they come loose or fracture the mount. then of course there is the Magnatron its self. I save them from old units. They are different wattages but physically the same and simple to change. Good luck.

If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10

Jan 30, 2018 | Advent Mw912bwdk Black Built-in Microwave...

1 Answer

My microwwave is not heating,


Hello

Push the microwave door tightly closed. The computer will not start cooking until the door is closed for safety reasons. Some models of microwave will give a warning on the screen if the door is open.


Ensure you have programmed a heat setting, entered a cooking time and pressed the "Start" button on the microwave's keypad. Check that the microwave is not set to "Defrost" mode.


Unplug the microwave and wait for one minute. This measure will reset the microwave's internal computer if it has frozen or scrambled. Plug the microwave back in and try again.


Ensure the keypad lock mode is inactive. Most microwave ovens have a lockout feature that prevents children from starting the microwave while unsupervised. Lockout mode is usually deactivated by holding down the button that bears a padlock symbol (like the "Start" button in the photograph).

Oct 05, 2011 | Sanyo Microwave Microwave Oven

1 Answer

Microwave light and fan run all the time will not shut off When I close the door, the fan comes on and the light stays on, never shuts off. Does not seem to be putting out the microwaves, as a cup of...


That is probably a bad primary interlock (bottom door switch).

See this file for help on checking and replacing door switches.

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, & testing.

dee77f7.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

May 06, 2010 | GE Profile Spacemaker Over-the-Range...

1 Answer

MMV4205AA Microwave will not turn off


Check for damaged, contaminated door switches/clips.

Dec 17, 2017 | Maytag MMV4205 Microwave Oven

1 Answer

GE microwave won't turn off


Just checked the GE website. Had the same problem with my 5 year old microwave. GE website says to close and open the door quickly three times. First time I did this it didn't work. Second time I closed the door with some significant force and reopened it more quickly. Worked. Unplugged the microwave, plugged it back in, still fine.

Mar 21, 2009 | Microwave Ovens

1 Answer

SHarp R-9H84B Microwave with Convection


I suspect a door switch firstly followed by the diode pack, magnetron and capacitor. One or a number of these things has taken the internal fuse situated on the mains input panel near where the power cable enters.
BE VERY CAREFUL lethal voltages exist inside and not just mains voltage, many times greater!

Mar 13, 2017 | Microwave Ovens

1 Answer

GE JVM1870BF06 microwave problem


Check those microswitches.

Dec 02, 2017 | Microwave Ovens

2 Answers

Sharp R-1450 Microwave Oven


The most common suspect here is a shorted high voltage capacitor, since you say it blew the fuse right after Start, but I would certainly suggest checking the door switches and door switch mounts first. Just be sure you installed the right fuse. It would be a The switch mounts seem to break at about this point in the life of these models. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://www3.sears.com (the three is correct)

Jun 04, 2007 | Sharp R-202EW Microwave Oven

2 Answers

Hood lights will not work everything else does ,tested bulbs


The problem is a bad light socket or the door switch. If you know how to do a continuity check with the power cable unplugged then thats what needs to be checked. Unplug microwave.. Take a meter lead insert it into the socket to the light bulb Follow that wire to where it goes as it should go to one of the switches on the door assy. Now these switchs can be tricky so be carefull when you check them as whith the door open theres a terminal that says N.O. that means normally open as when the doors open. The other lead should say on the door switch N.C., that means normally closed so you now that if the wire coming from the light bulb goes to a switch point on the door says N.C. the it shoud read a short from the light bulb socket to both the common and the N.O. side of the switch. If it dosent then the switch is bad. Now on a rare accation the socket itself is bad but thats easy to look at and see if its all corroded and stuff. If this dosent help lets us know and we can assit ya more and by all means if you dont know what im talking about PLEASE dont attempt to trouble shoot this as it could cause bodily harm!! Good Luck

May 31, 2006 | Sharp R-1481B Microwave Oven

Not finding what you are looking for?
Emerson MW8778 Microwave Oven Logo

65 people viewed this question

Ask a Question

Usually answered in minutes!

Top Emerson Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9098 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

225 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

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

Answer questions

Manuals & User Guides

Loading...