Jenn-Air JMV8208A  Microwave Oven Logo
Posted on Jan 24, 2010
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

It has completely gone dead, there is power coming to the unit. I believe I accidently turned the unit on to heat yesterday with nothing inside instead of turning on the timer thereby allowing the unit to run with nothing inside and getting very hot !!!! Again, nothing is working now

1 Answer

Kelly

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Jenn-Air Master 3,740 Answers
  • Posted on Jan 24, 2010
Kelly
Jenn-Air Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Jan 01, 2010
Answers
3740
Questions
1
Helped
2163195
Points
12091

You already know it can be a costly mistake. Had it happen in my own home!!!!

Several things can be wrong:

1. The Fuse inside the unit
2. The High Voltage Capacitor
3. The Power Diode
4. (bad news) The Magnetron.

There is an RF window that can be bad also as when a microwave is run with no load it can be burned. It is supposed to help protect the Magnetron from reverse flow RF and help disperse the RF inside the unit.

The next question is: "Are you going to talke this by yourself or have it repaired?" We can you advise on what to do but there are some hazards that you need to be aware of if your going top give it a go..... Just reply here. Thanks.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

No power indicators at all

Yes, Most Microwaves have ceramic fuses inside of them. Since yours has no power I think it justn needs a new fuse. If on the other hand you have a mcrowave which lights and turns but does not heat then the unit is worhtless as the microwave generator unit is gone.
0helpful
1answer

The microwave oven has completely gone dead Sharp r-1501c. Yesterday the light was on. I went to turn the light off and to put something in the microwave and it lost all power. I've checked the outlet...

It may be the control panel. What ever you do, don't send the control panel to William Miller. He ripped me off, and I have to dispose of my microwave because he never returned my control panel.
If yours has gone dead completely, it's more cost effective just to replace it. I bought an LG to replace mine.
0helpful
2answers

Maytag MMV4205BAS stopped dead in the middle of a heating cycle. Unplugged and plugged back in. Oven is on the same fuse and it's fine. Any ideas?

There are several possible causes for a dead oven. Since yours quit in the middle of heating, I'd say it's most likely failure of the magnetron tube which supplies the microwaves. There's a safety thermostat on the tube which opens up and shuts off power if the tube overheats. Overheating is one sign of a tube that's gone bad.

There's really nothing user-serviceable in a microwave oven. Because of hazardous voltages inside and the possibility of microwave leakage, service should be left to professionals. Take the oven to a service shop for an estimate.
0helpful
1answer

Stopped working during microwave function

First unplug the unit.
The problem is most likely caused by the thermistor (thermal resistor) failing. This device is located at the outlet vent and will cut power if the unit over heat or catch fire. All microwaves have it. You can test it with an ohm meter. You can get a new one from an electronics store like Radio Shack.
You will have to remove the cover to get to it.
This unit may also have a fuse inside, I do not know if this is the one you changed, but you can look at it. You didn't give a model number so I could not point you to a diagram.
1helpful
1answer

I have power to the plug, but nothing to the unit when it is plug

First unplug the unit.
This can be caused by one of two possible conditions.
You may have blown a fuse inside the unit or the thermistor may have blown. You can check them with a simple ohm meter. You will have to take the covers off to access the parts. The thermistor is located at the air outlet. This thermal resistor (thermistor) is designed to open if heated too hot and shut power to prevent fires. You can see a diagrams at;

http://www.appliancepartspros.com/partsearch/model.aspx?model_id=260464

It's usually the thermistor.
The parts can be purchase at electronics stores like Radio Shack.
0helpful
2answers

Danby 1000 Watt Microwave is completely dead. Just stopped working right after heating up a dinner.

you may have just blown a fuse inside the microwave or the transformer inside has now failed and will need replacing but it will need to be looked at to see what exactly happened

electech
0helpful
1answer

Kenmore Microwave won't heat.

your problem might be more than a fuse chech the magnetron
1helpful
1answer

No power - Nothing happens

if you have power at the outlet and the internal fuse is okay, I would say you have a problem on the control board. We repair these nationwide for $32.50. Please see my profile for the Web address: http://tinyurl.com/yzjozk
Not finding what you are looking for?

323 views

Ask a Question

Usually answered in minutes!

Top Jenn-Air Microwave Ovens Experts

Cindy Wells

Level 3 Expert

6688 Answers

rajanshyam

Level 1 Expert

11 Answers

Brad Brown

Level 3 Expert

19187 Answers

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

Answer questions

Manuals & User Guides

Loading...