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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!!!

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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.

Posted on Aug 01, 2009

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1 Answer

My Emerson Microwave MW9117W has lost power and was wondering if there was a fuse or something that needed replacing


There are fuses inside. The big thing is to figure out why the fuse went bad. either something shorted and blew the fuse, or it got hot and went bad due to bad connections at fuse holder. or maybe a bad door switch blew the fuse. I have also had fuses just get old and tired., and just needed to be replaced.

Aug 19, 2017 | Emerson Microwave Ovens

1 Answer

Micowave blows the fuse when turned on


The transformer that makes hi voltage for the Magnetron tube is causing the fuse to blow. This may be a bad Magnetron tube or a shorted winding in the transformer. Price for the repair may be too close to the price for a new oven, so check with a repair center before deciding to replace it.

Aug 08, 2015 | Sharp Microwave Ovens

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I just moved in here 2.5 weeks ago. At first the none of the numeric buttons on the Emerson mw8119sb worked. Then, after punching them for a while, the 6 worked.


First of try to disconnect it, wait for a minute, then re-power it. After internal tests it's supposed to come up with initial settings (like time/date etc.)

May 13, 2015 | Emerson Mw8119sb Microwave Ovens

1 Answer

Replace my glass tray


The part number is 252200200010 and you can get one from Encompass.

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

Apr 16, 2010 | Emerson MW8168B 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

Micowave oven just stopped working in the Middle of heating something up. what would have caused this.


If everything went off and nolonger works then the fuse blew. If it came back on after a cooling off period then the thermostat on the Magnatron sensed an over heat condition. If the mag continues to overheat there is a problem with it or the High Voltage components.
Eric

Sep 17, 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

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


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.

Mar 06, 2009 | Microwave Ovens

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

2 Answers

My Touch pad does not work, can someone help? kenmore mocrowave model 721.62624200 microwave buttons work sporatically. if i push in a downward motion they work sometimes microwave blew a fuse a couple of...


It sounds like the keypad is worn out. The fact that you can get them to work sometimes by what direction you push on them, tells me that the contacts are not working correctly.

Did you have this problem prior to the fuse blowing or did it start after you replaced the fuse?

I don't believe the fuse blowing is related to the keypad problem. I also don't believe that you have a microprocessor problem because you say that the function buttons work but the number keys don't work right. If the microprocessor was faulty, it would not be able to read any of the keys.

The fact that the number keys are not working doesn't surprise me. When you go to cook something, you will press the number keys several times, while only pressing start or stop once. This is why your number keys have worn out first. These keys have a limited number of cycles (presses) and it sounds like its time for a new keypad.

Please let me know if I can be of further assistance to you.

Good Luck!

- Jim

Feb 21, 2008 | Microwave Ovens

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