Question about Kenmore 62642 / 62644 / 62649 Microwave Oven

2 Answers

Kenmore over the counter microwave problem

The exhaust fan turned on automatically when my wife was cooking and now it won't turn off. I have tried hitting the on/off button. I have also tried unplugging the oven and pluggin it back in. The fan started shutting off, then would turn back on again without any prompting or cooking going on. No it won't turn off at all anymore.

Can you pleas help?

Posted by on

  • 1 more comment 
  • Anonymous Jul 10, 2008

    microwave heat is not coming on

  • dlbrws2002 Oct 03, 2008

    The exact same thing the fan came on by itself and continues to run on it own. I too have unplugged and replugged with no success.

  • Anonymous Mar 15, 2014

    I have also tried unplugging the oven. nothing happens

×

Ad

2 Answers

  • 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
  • 473 Answers

It has a bad relay on the control board. The board will need to be replaced.

Posted on Nov 13, 2007

Ad
  • 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.

  • Kenmore Master
  • 9,098 Answers

.
This is usually caused by a failed hood fan thermostat or a stuck relay or damage on the control board.

We repair these boards for $39.95 postpaid nationwide. Much cheaper than a new board.

We have full details, plus *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

If it might be the thermostat, you can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Posted on Nov 26, 2007

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,
A 6ya expert can help you resolve that 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.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Kenmore model 721 - Cooked a meal for 30 minutes. Afterwards the microwave did not heat. However, the next day it worked. A few days later, was operated for 20 minutes, and again did not heat, and has not...


Yes, there is a thermostat device located on the magnetron. It will open up (turning off the magnetron) when it gets too hot, and it will reset automatically after it cools back down (in 5 to 15 minutes). The question is, Why is is over-heating? Usually it is caused by the exhaust fan being turned the wrong way. (For example, it may be set to exhaust the air out through the top of the microwave, but you don't have a vent there.) That fan can be turned to exhaust air out the top, out the back, or recirculate the air back through the front of microwave. It's easy to turn it around - the hard part is that you have to take the microwave down to be able to pull the fan out and rotate it the right direction.

Jan 17, 2015 | Kenmore Microwave Ovens

1 Answer

Fan comes on automatically


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.

Aug 15, 2014 | Whirlpool Microwave Ovens

1 Answer

We have a kenmore ultra wave microwave and the fan has stopped working and now the microwave won't operate. Any suggestions?


see this causes and fix it .God bless you
Exhaust Fan Motor If the exhaust fan does not run the fan motor might be bad. Remove the fan motor from the microwave oven and see if the blades can be turned by hand. They should turn very freely, if they're stiff the fan motor will need to be replaced. The fan motor can also burn out. To test this use an Ohm meter. The motor should have continuity. If it does
Thermostat If the microwave exhaust fan is not working the thermostat might be defective. The thermostat senses the air temperature and turns on the fan as needed, if it's defective it won't turn on the fan. Watch our video on testing thermostats.

Main Control Board If the microwave exhaust fan is not working check the exhaust fan motor and wiring. If they are good the main control board might be defective.


10_2_2012_12_17_02_pm.gif

Oct 02, 2012 | Microwave Ovens

1 Answer

What causes a Samsung Microwave exhaust fan to turn on by itself?


mine turned exhaust fan on automatically... i couldnt shut it off... had to unplug it.... no buttons worked.

Aug 29, 2012 | Samsung 1.8 Cu. Ft. Over-the-Range...

1 Answer

Does the exhaunst fan turn on automatically when we cook or warm food items in our Samsung Microwave -- SMH 9187W?


Some interesting reading on page 8 of the owner's manual:

"Boilovers cause smoking and greasy spillovers that may ignite and spread if the vent fan is operating.To minimize automatic fan operation, use adequate sized cookware and use high heat on surface units only when necessary."

And on page 20:

"If the temperature becomes too hot around the microwave oven, the fan in the vent hood will automatically turn on at the LEVEL 2 setting to cool the oven. The fan will automatically turn off when the oven has cooled down sufficiently. This is an automated process and cannot be turned off. The fan may stay on for 30 minutes or more after the cooktop and microwave controls are turned off. The Vent Fan will only operate in 1~4 levels modes while the microwave is working."

"Using the Vent delay off button
1. Press the Delay Off button once to turn the fan off after 1 minute.
2. Press the Delay Off button twice to turn the fan off after 3 minutes.
3. Press the Delay Off button three times to turn the fan off after 5 minutes.
4. Press the Delay Off button fiour times to turn the fan off after 10 minutes.
5. Press the Delay Off button five times to turn the fan off after 30 minutes."

If for some reason you don't have your owner's manual, you can still download it free here.

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

Jan 01, 2011 | Samsung Microwave Ovens

2 Answers

Will an over the range microwave exhaust fan start automatically If the range cook top gets too hot.


NOT THAT I'M AWARE OF . YOUR UNIT SHOULD HAVE A SWITCH TO TURN ON AND MUST BE TURNED ON MANUALLY

Oct 12, 2009 | KitchenAid KHHS179L Convection/Microwave...

1 Answer

Fan will not turn off after cooking time stops


Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, your symptoms, as well as the answers to these questions:

- Which fan is it, the internal cooling fan, which comes on automatically whenever the unit is microwaving? Or the hood vent exhaust fan which you can turn on and off manually?

- Does it run all the time, or just after cooking?

- Does the inside light or turntable also remain on when they should shut off?

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

Oct 08, 2009 | GE Microwave Ovens

1 Answer

Vent fan high comes on automatically with cooking


Right, that would be MCO10UW and the owner's manual is here.

The owner's manual does say this, of course,

"To prevent overheating from taking place, the exhaust
fan is designed to automatically turn on at a low speed if
excessive temperatures occur. Should this happen, the
fan cannot be manually turned off, but it will
automatically turn off when the internal parts have
cooled. The fan may stay on for up to an hour after the
range and microwave oven controls have been turned
off."

That;'s standard on microwaves.

But these models do have a separate internal cooling fan (which should run any time you microwave) plus the hood vent exhaust fan, which should only run when you select it, or if there is an excessive stovetop or under-hood temperature.

So if it comes on whenever you microwave, that is incorrect.

When that happens, it's usually a defective vent thermal switch (a.k.a. hood TCO).

But since it's brand new, I would certainly contact Magic Chef about this. If it's in need of repair, they will fix it free, assuming the oven wasn't physically damaged.

For more help from Magic Chef / Ewave see here or their contact page.

For Magic Chef in Canada call 866.587.2002

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

Jan 08, 2009 | Magic Chef CMV1000B 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

1 Answer

Mircowave works, exhaust door opens, fan stop working


From looking at the owner's manual, it looks like the vent fan is only supposed to come on when the internal temperature of the microwave gets too high OR when you press the VENT FAN pad. Here are a couple of fan-related excerpts from the owner's manual, which can be found here: http://products.geappliances.com/ProdContent/Dispatcher?REQUEST=SKUOBJECTS&DOCUMENT=Use%20and%20Care%20Manual&SKU=JVM1840BD (or the better URL here: http://tinyurl.com/yn7r6g) Automatic Fan An automatic fan feature protects the microwave from too much heat rising from the cooktop below it. It automatically turns on if it senses too much heat. If you have turned the fan on, you may find that you cannot turn it off. The fan will automatically turn off when the internal parts are cool. It may stay on for 30 minutes or more after the cooktop and microwave controls are turned off. - Vent Fan The vent fan removes steam and other vapors from surface cooking. Press VENT FAN once for high fan speed, twice for medium fan speed, a third time for low faw speed, or a fourth time to turn the fan off. Press the VENT FAN BOOST pad for extra fan speed. - Hope this helps.

Oct 31, 2006 | GE JVM1840 Microwave Oven

Not finding what you are looking for?
Kenmore 62642 / 62644 / 62649 Microwave Oven Logo

823 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenmore Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9098 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Chuck

Level 2 Expert

228 Answers

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

Answer questions

Manuals & User Guides

Loading...