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Whirlpool Microwave oven 1000w

The fan is hunting (speeding up and slowing down) as soon as the unit is swithched on. It sounds almost as though the bearings are sticking or on the point of siezing. The machine has functioned faultlessly for 11 years now and change of the bearings in the fan motor may just give it a whole new lease of life. I can buy repalcement bearings for just about anything assuming I can dismantle the motor in the first place.

Hope you can help diagnose the problem

Best regards
Paddy

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How can i remove the front glass on my whirlpool microwave

Posted on Sep 28, 2008

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My microwave oven siows down and then speeds up.


Is it still heating food properly? You can perform a basic test with a microwave safe mug or plastic cup of water. It should be boiling or too hot to touch within 1 to 2 minutes. Be careful not to overheat the cup if plastic and use extreme caution when touching or removing it from the microwave.

If it is not heating properly then the magnetron may be faulty and unit should be replaced.

Can you tell what specifically is speeding and slowing? Is it the turntable or the humming sound of the unit itself? Many microwaves vary their intensity in order to heat/cook evenly and that will vary the pitch of the sound you hear and sound like it is speeding up or slowing down. If the turntable is slowing and speeding up then there may be a bad motor and the unit should probably be replaced.

If the unit is heating adequately and the turntable speed is uniform then what you may be hearing is simple power cycling and/or fan noise.

Only trained and certified technicians should attempt repair of microwaves due to the hazards of high voltage and microwave radiation leakage if parts are not replaced properly. Although you can have a microwave repaired the cost may be equal to, or higher than, the cost of an equivalent new unit for a 900w microwave.

Feb 28, 2015 | West Bend 0.9-cu. Ft. 900-watt Microwave -...

1 Answer

Spontaneously stops working and then comes on after 5 minutes. Why?


Sounds like the magnetron is overheating. There is an automatically-resetable thermal circuit breaker attached to the magnetron. Most likely your problem is caused by either a cooling fan that is not running, or is running too slow (caused by gummed-up bearings). In some over-the-range (OTR) microwave ovens, the exhaust fan is run at a slow speed to cool the magnetron, and if it's bearings get gummed up, it won't run on the slow speed. But if it's a new OTR microwave, then the exhaust fan may be pointing the wrong way. (It is rotatable, depending on the installation). For example, if it is pointing up, but you don't have an exhaust vent over the microwave, then the air has nowhere to go, and the magnetron will overheat.

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1 Answer

WMH32517AW Whirlpool Over-The-Range Microwave-No Fan


Go inside and check all of the connections related to the fan. Check the fuses, and the fan itself.

Nov 06, 2013 | Whirlpool WMH32517AW 1.7 cu. ft....

1 Answer

I've purchased the Whirlpool Model #: WMH73L20AS microwave and the venting fan not working (well). The intake under the microwave into the filter can be barely felt, but on the top part of the microwave...


I just returned mine.... I had 7 (SEVEN) service calls coming out for it.. and they tried everything to stop it from overheating...and shutting off... and finally after 4wks we called it quitts. its a venting design problem... inside the unit...

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1 Answer

Our Whirlpool over the range microwave makes a clicking sound for a few seconds then shuts the microwave off. The microwave is unusable. The sound seems to be coming from the control panel.


If the cooling fan is not working, that would explain the shutdown problem. The function of the fan is to cool the magnetron down when it is warming or cooking the food, if the fan fails to run, the thermal fuse will detect heat rise causing a shutdown with in 5 seconds or more, the clicking suggest fan issues. I would recommend a whirlpool technician to go through the system.

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1 Answer

GE JVM1430 over the range microwave/exhaust fan unit. The exhaust fan (not the microwave cooling fan) all of a sudden has its speed slowed down considerably. The unit vents out the back, not top. ...


Sounds like a strip down of the fan and lubricate the bearings with sewing machine or thin cycle oil will do the trick.
Hope that helps.

Jan 20, 2011 | Microwave Ovens

1 Answer

Microwave will no longer heat. Model #MA-1000W


So we can help you, please post a NEW question, and please include your model number MA-1000Was well as the answers to these questions:

When you try to microwave are the inside light, internal cooling fan and turntable all working?

Is there any unusual noise or is it louder or quieter than normal?

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.

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

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I just purchased an Emerson 1000W Microwave, Model #MW8115SS. I took out of box, removed the blue covering that protects the finish and when I plugged in and turned it on to heat something up, it was very,...


The unit may be more powerful than your last one. if its probably is normal 1100 w is a lot of power. if it works well and you in joy it, then you will soon be used to the new sound of power Good luck DFD

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1 Answer

Bosch hmt9626 gb 1000w microwave cuts out after 20secs


ur mag netron is faulty the reason for cutting out is thermal cutout switch change magnetron

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