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Fan wont shut off

Microwave shut off, then few minutes later the fan turned on by its self and wont turn off, even after unplugging it and sitting for a few minutes

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My fan turned on by itself. "High" gives low speed, "Low" and "Off" gives high speed. I suspect a faulty bottom temperature sensor. Unplugging microwave a few times didn\'t work. Then I started "nuke" for 30 seconds, and immediately unplugged microwave when it\'\'s done. The fan shuts off after turning back on.

Posted on Oct 09, 2014

6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SOURCE: Microwave Fan won't shut off, no display

Depending on which brand you have I would think that the Thermal switch on top of the magnetron or one of the door switches has probably given up the ghost. However, if the display does not come on you probably have a micro or Psu fault on the display panel. Not to be attempted if you are not familiar with microwaves or electronics. Please unplug before opening. Good Luck, JUS004

Posted on Jan 05, 2008

SOURCE: microwave fan won't turn off?

hi i would think that the power problem has fried the processor
cheers grant

Posted on Oct 23, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: emerson mwg9111sl microwave oven won't turn off unless unplugged

I would suspect a bad door switch or mount or a problem on the control panel.

For more help from Emerson visit here or get help using your appliance at 1-800-898-9020.

Get help locating a local authorized servicer at 1-800-695-0098.

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

Posted on Nov 24, 2008

freetek
  • 5568 Answers

SOURCE: Turned it on and three minutes later it turned off. Not working at all

The first thing I suggest is to check if  you have a 'Ground Fault Interrupter' (GFI) protecting that circuit; they will sometimes trip because they have misinterpreted a current condition that some appliances may do randomly. These look a little different than the standard outlet and have two buttons, one test and the other reset. Some have small indicators that light if the circuit has been disabled.    There is normally only one in a kitchen or bathroom.   If you don't find this, plug in another appliance briefly (a nightlight will do) to se if there is voltage at the outlet used for the micowave.
If the outlet is dead, it's time to locate the main breaker or fuse box and check to see if there are any tripped or blown.
If you don't find any external problem then it is time to pull the AC plug and remove the back panel. This normally won't require more than the removal a 5  or 6 screws.
Check the area around where the AC line comes into the cabinet for a fuseholder which are often easy to find.  Typically, these appliances use a standard US style fuse except that the body may be white (ceramic) instead of glass. Keep fingers away from everything except the fuse as there are parts that can retain a nasty charge for hours.
If you have a multimeter, you can check the fuse for continuity; if you don't, then you will need to find a replacement fuse of the same rating which will be in the range of 10 to 20 amperes and this is stamped into the metal end caps. Don't replace any ceramic-body fuse with glass since a fuse can produce a high gas pressure when it blows and glass will often shatter.
Any appliance service center will have this type of fuse in stock and it shouldn't cost more than a buck even when business is slow. Buy two, not just a single one.
If you replace the fuse and if fails again, you will have to let a tech do some magic and locate the cause of the overcurrent that is blowing the fuse.
There are a number of parts that can fail that don't cost a fortune but if you bring it in, or have it serviced at home, ask for the type of part that has failed if the cost exceeds $10 and post back here so I or another tech can tell you if it is a fair price.
Good luck-       

Posted on Apr 24, 2009

  • 1 Answer

SOURCE: sylvania p70d20al-d5 microwave keeps beeping

I have the same problem with my microwave, the clock disappears and it says "enter" and "amt", I figured out it's the "beverage" button that is sticking. When I want to use it I just press "beverage" and then "reset" and just press them over and over until it stops. Usually it's on the first try, sometimes I have to press them a few times. Just don't do what I'm about to type though, I decided to get my razor knife and cut the button out carefully, I only cut the contacts on each side of the button, now no buttons work, I should have left it the way it was, at least I could use it that way.

Posted on Aug 08, 2009

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Microwave shuts off to soon?? REPAIRING/FIXING MICROWAVE OVEN FAN


I had picked up a very nice stainless steel covered microwave at a yard sale for 5 bucks. They had told me it worked fine but they neglected to tell me it only worked fine for 4 minutes and then it would shut its self down and then you had to wait 3 minutes for the reset to take effect and then you had another 4 minutes of cooking.

Let me tell you this got old in a hurry. I looked on the internet for expertise advice by stating my case in the google search bar. There were 20 different relays and fix this and fix and replace thats on there.

I decided to just take the back cover off and have a look for my self.
once I was inside i was touching this and poking that and noticed it was really dusty inside with plenty of left over spider homes so i used my computer air can spray and clean it all out.
I thought maybe it just might have been the problem as bad as it was in there so I plugged it in with the back still off and it shut down in 4 minutes just like before.
Something was wrong and I couldn't quit place it so I tried it again after the relay clicked back on. Then I saw it. The cooling fan was not turning.
I unplugged it and tried to turn it by hand after squirting some WD 40 on it and the plastic blade would turn but not the shaft the blade was attached to. So I got a pair of pliers and worked the shaft until it broke free. Squirted a little more oil on it and it became nice and smoooooth oh boy!!!

I then plugged it back in and set the timer to 5 minutes. By the way never touch anything inside one of these while it is plugged in.
The microwave approached the 4 minute mark and I stood there with my fingers crossed watching the fan run as smoooooth as can be.
Wallah!! it passed the 4 minute shut off mark and made it to the 5 minute mark until it quit because the timer ran out.
I did this again at 10 minutes and it made it all the way through without shutting down.
I now have a great working $5.00 microwave and it didn't cost me anything more but a little time and couple squirts of oil.

So if you experience the same early shut down time then now you can maybe good lucky like me and repair it your self by a flick of the fan blade.
I hope this will help you same some money. The Raz Shack

on Apr 22, 2010 | Microwave Ovens

1 Answer

If you try to heat something for a minute , the microwave will turn on for about 15 seconds then shut off . It doesn't even seem to warm the food.


It may need a reset. You can do that by unplugging the power for a minute or two, then plugging it back in and setting the clock.

If it still fails, you may have a failing cooling fan or a problem on the control circuit board.

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If the microwave is above the stove, the heat sensors in the microwave
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I have a Frigidaire FMV156DBA built-in over-the-counter microwave that started behaving erratically tonight. The light started blinking on and off, accompanied by a repeated beeping. I unplugged the unit...


Yes have it serviced. Sounds like there is a loose/corroded connection inside and loose connections can cause fires. The intermittent/ramdom operation is indicative of this.

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My over the oven microwave turns off after a few


i would check your thermal cut offs inside he cabinet,there is a chance that your cooling fan is bad,even thought it may be turning it might not be turning at a fast enough rpm to proper;y cool the unit.
the last thing that i think would be bad is the control board.I hope this helps you get your microwave fixed

Feb 06, 2010 | Microwave Ovens

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Frigidaire Microwave Fan won't shut off plmv169dcd


Had the same issue, leave Microwave unplugged for 30 minutes and then plug back in. My fax stopped blowing and now fucntions 100% normal again HI/LO / OFF

Best of Luck!!! :)

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GE microwave won't turn off


Just checked the GE website. Had the same problem with my 5 year old microwave. GE website says to close and open the door quickly three times. First time I did this it didn't work. Second time I closed the door with some significant force and reopened it more quickly. Worked. Unplugged the microwave, plugged it back in, still fine.

Mar 21, 2009 | Microwave Ovens

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GE spacemaker Profile XL1800 vent fan will not shut off


It may be a bad door switch, a loose door switch mount, or a problem on the control panel, such as a sticky relay.

I would suspect a sticky relay first, but the door switches should be checked.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

If you need your control panel assembly (smart board) repaired, we do that for $39.95 nationwide.

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

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1 Answer

Microwave came on by itself


Yes this is usually caused by the touch assy, but $278 !!!!! Thats kinda steep considering the panel assy is only around 30-60 bucks!!! It will need the touch assy and even possibly the control board, because sometimes the logic IC gets fried and causes "ghost issues" as well.

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