Question about Microwave Ovens

1 Answer

Microwave just stop working

I have a microwave that was being used to cook, but when the cycle ended, the exhaust fan came on by itself. All control buttons and lights are now dead. The exhaust fan continues to run and can only be stopped by unplugging the main power cord.

Posted by on

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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 706 Answers

Hello sirlocks,
Based on your description, it sounds as if your control board or the power supply to it may have gone bad. Sometimes the cost to repair exceeds the cost to replace and that may be the case for you... If it is older than 2 or 3 years.. you may consider just replacing that appliance..
Regards,
Rick

Posted on Nov 22, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Kenmore elite microwave


Was it just the exhaust fan that came on? If so this is normal when cooking on the stove for long period of time without the fan running. The heat builds up under the microwave and eventually activates the fan.

Sep 05, 2014 | Microwave Ovens

1 Answer

Have Kenmore microvave and the vent starts on its own


Actually, that's a feature! If you cook much on the range (stove) beneath the microwave, the heat will cause the microwave bottom to heat up quite a bit (just touch it!), and the microwave will turn on it's exhaust fan in an attempt to save itself from burning up. It will shut off in about 15 minutes after you turn off the source of heat.
But if the fan comes on by itself even when the microwave is cool (or at least not hot), then you probably have a defective fan thermostat. This thermostat is located behind the control console on the inside bottom of the microwave.

Aug 27, 2014 | Kenmore Microwave Ovens

1 Answer

I have a Kenmore microwave. The vent will just start on its own and can't shut off


Actually, that's a feature! If you cook much on the range (stove) beneath the microwave, the heat will cause the microwave bottom to heat up quite a bit (just touch it!), and the microwave will turn on it's exhaust fan in an attempt to save itself from burning up. It will shut off in about 15 minutes after you turn off the source of heat.
But if the fan comes on by itself even when the microwave is cool (or at least not hot), then you probably have a defective fan thermostat. This thermostat is located behind the control console on the inside bottom of the microwave.

Aug 27, 2014 | Kenmore Microwave Ovens

1 Answer

GE Microwave (JVM1860CD001) control board buzzes.


see this causes and fix it. God bless you
Magnetron If the microwave is loud or noisy only when cooking, the magnetron tube might be defective. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. Under normal circumstances the magnetron is nearly silent. However if it is damaged or nearly burned out it can begin emitting high pitched or growling noises. It's not normally dangerous to use a microwave oven when it makes these noises, but they are an indication that the magnetron is almost dead and will need to be replaced.
Exhaust Fan Motor If the microwave is loud when running the fan motor might be
Stirrer Motor If the microwave is loud or noisy the stirrer motor might be worn out. The stirrer is a metal blade which slowly turns around, deflecting the microwave energy in a random pattern inside the microwave oven. As the motor nears the end of its useful life it begins to make grinding noises. The microwave will not heat food evenly without this stirrer, the motor should be replaced.
Turntable Motor If the microwave is loud or noisy the turntable motor might be worn out. This is a common problem and relatively easy to replace.
10_11_2012_10_48_03_am.gif

Oct 10, 2012 | GE Microwave Ovens

1 Answer

After use, fan keeps running and control panel not working


Hi, this is a major chip fault. this chip is located on the control board and, it is responsible for initiating the cooking cycle correctly. you will need to replace the control board asap. it has failed.

Jun 19, 2009 | Kenmore Microwave Ovens

1 Answer

Shuts itself off mid cooking cycle -- as if unplugged; then after 5 minutes or so turns itself back on as if it was just plugged in (forgetting all previous settings)


If you just put the fan blade back on, it will almost certainly fall off again.

The best bet is to slightly rough up the contact area of the shaft with sandpaper and use a little super glue to hold the blade assembly on the shaft, and let it set a few minutes before using it.

I always recommend that you use the hood vent exhaust fan when cooking on the stove top to keep heat, steam, and grease out of the controls.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.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 helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

May 20, 2009 | GE Profile Spacemaker Over-the-Range...

1 Answer

Microwave still continues after cooking time is ended


It is the fan. Im guessing it only happens on combination cook and not when you are only using the microwave setting. It happens because the oven is hot and it helps to cool it quicker. It is normal. The microwaves are not working and neither is the oven-just the fan.

Mar 31, 2009 | Oster 0.7 Cu. Ft. Compact Microwave

1 Answer

Whirlpool model MH7100XYQ microwave, exhaust fan


sometimes the control board will short out and not let the fan or cook top light work.
if you want to try and remove the control board, look on the back of the board for any burnt off tracers. those are the wiring connections on the board that move power from a wire to a relay.
it is usually easy to see the burnt out piece, and if you can solder a new wire across where the burnt out part is, then it should work ok again.
if you cant solder, then a new control board will cost about 125-150 bucks.

Jan 30, 2009 | Whirlpool GH7208XR Convection / Microwave...

1 Answer

No fan noise when cooking.


The internal cooling fan is critical. It comes on automatically whenever the oven is cooking.

If the oven is used without its working properly, the magnetron can be destroyed very quickly.

(This of course is different from the hood vent exhaust fan, which you can turn on and off at will)

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

In some models, the motor itself is bad. In other models, it is a bad relay or connection on the control circuit board.

We regularly repair these control panel assemblies for customers nationwide with our guaranteed $39.95 service in about a week.

Feel free to contact me directly (with your model number) for more information & help.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Sep 21, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE JVM1870 Spacemaker Microwave Fan Malfunctioning when Cooking


There are two different fans in this model, as with almost all over the range microwaves.

One is the hood vent exhaust fan, which you can turn on and off at will, and which should always be on when cooking on the stove top.

This fan does not automatically come on when you cook with the microwave.

The fan which should always be on (automatically) when you are microwaving is the internal magnetron cooling fan.

If the cooling fan fails, the magnetron can overheat and the thermal cutout (TCO) / thermostat will open, killing the power to the oven. Ideally, this protects the magnetron from being destroyed.

If the thermal device is a thermostat, it will reset when it cools down, and the oven will work.

If the thermal device is a true thermal fuse, it is a one-time device and if it blows, it will have to be replaced.

If your cooling fan is bad, it needs to be replaced before using the microwave.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also 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.

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

Sep 16, 2008 | GE JVM1870 Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

49 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...