Question about Microwave Ovens

1 Answer

Blows main fuse 20A,250V when press start microwave.

Emerson model MW8119SB , replced another fuse , fuse got burned again.

Posted by on

  • rranjan Mar 29, 2009

    As soon as I start the microwave, the fuse blows. Replaced fuse again, same thing.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 111 Answers

First things first, check the big cigarette can type capacitor. OHm it out should not be shorted, meaning reads zero ohms. use ohm meter, set to ohms, put leads across 2 terminals (after your short them with a screwdriver)should not read zero..

next replace magnetron, it's easy, call appliance repair for price if it makes sense and your a gambler replace it.

Posted on Mar 07, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

"ge spacemaker microwave oven model jvm1530"


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

See these links before proceeding:
http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt http://www.microtechfactoryservice.com/cap_test.html
You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

May 17, 2013 | Microwave Ovens

1 Answer

Microwave blows fuses


A short likely in the wiring for the light or at the safety switch embedded on the side where the door closes----be careful as a 20 amp fuse takes something major to take out.
(for it to blow)

This might be best left to a qualified service person.

Dec 22, 2012 | Microwave Ovens

1 Answer

My Maytag Microwave is blowing the 250v- 20a fuse behind the key panel on the black wire. It melted the fuse holder mounted to the main body of the unit. Any thoughts on why?


The magnetron is shorted, the keypad control board is bad, blowing fuses. If less than 7 years old it has a inverter board that can be trouble, But with the level of work and parts it will easily exceed the cost of a new microwave oven.

Apr 07, 2012 | Magic Chef CMV1100 Microwave Oven

1 Answer

Yesterday, my sharp carousel r-1460 went dead. I took apart the front keypad and replaced the 20amp fuse behind it. the microwave light and fan work.But, when I start microwave to cook something, pop! fuse...


If the 20A fuse is blowing, it is often the high voltage transformer or magnetron. If this is the case, and the microwave is not under warranty, replace it. Residential microwaves are generally considered disposable. Parts and labor are just too expensive. A magntron or transformer can cost more that half the cost of a new microwave.

Feb 24, 2010 | Emerson MW8102SS 1100 Watts Microwave Oven

1 Answer

Emerson Microwave Model MW8119SB found blown fuse. Replaced fuse power came back punched in 10 sec started microwave and fuse blew again.


Chances are that either the diode or capacitor are shorted. Be very careful, the capacitor can store a charge and should be discharged first for safety. Hope that helps...

Geno

Dec 06, 2009 | Emerson Microwave Ovens

1 Answer

My emerson micowave mw8119sb blow the fuse, I replace with a new one same rating, it turns on but when I put something for heat it blew the fuse again. Any help! Thanks!!!


Could be a short in the HV system for the magnetron--usually the HV diode. Another possibility is the metal stirrer fan in the waveguide above the oven cavity may have a shorted bearing (plastic). The short occurs internally within the bearing.

Aug 01, 2009 | Microwave Ovens

2 Answers

Emerson MW8119SB microwave turns on, but it does not heat.


You have a defective magnetron or blown fuse supplying power to magnetron.

May 13, 2009 | Microwave Ovens

1 Answer

Emerson microwave, #MW8119SB, push start button to start cooking


Replace the fuse with a ceramic fuse from Home depot! costs less than $3 and it will fix the problem. I had all the same problems as everyone else, you name it my microwave had it! you must remember replace it with a ceramic fuse! not a glass one. I know people say its the switchboard and all that nonsence but I promise you, the fuse plays a majoe roll in the microwave not working properly. Even though it doesnt look broken, a junky fuse can cause your appliance to do very strange things. I replaced mine 6 months ago and it works like its fresh out of the box.

Apr 08, 2009 | Emerson Black Microwave Oven

1 Answer

My Emerson Microwave Model # MWG9111SL keeps blowing fuses..


You have a shorted high voltage capacitor.

Here is a link you or someone you know can use to test it, but please read the safety info:
http://www.gallawa.com/microtech/cap_test.html

For more help from Emerson visit here or get help using your appliance at 1-800-898-9020. Get help locating a servicer or parts at 1-800-695-0098.

Emerson parts are distributed by Fox International and their number is 800-321-6993. Or you might try e-mailing researchdept@fox-international.com

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Nov 24, 2008 | Emerson Black Microwave Oven

2 Answers

Emerson MW8119SB microwave wont stop running with door closed


It should have a one-year warranty on parts and labor.

I'd call Emerson at 1-800-695-0098 to find your nearest authorized service center to have it fixed free.

It's probably a bad door switch or door switch mount.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jun 22, 2008 | Emerson MW8778 Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

438 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

224 Answers

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

Answer questions

Manuals & User Guides

Loading...