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I have a whirlpool microwave hood combo model number YMH7155XM. Yesterday when i hit start it starts making a loud buzzing/viberating noise. I'm not sure if it is still heating items and i'm worried to use it. What could this be?

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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 Repairman 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 repair professionals here in the US.
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Posted on Jan 02, 2017

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SOURCE: Hoover started to make loud noise

It sounds like a bad motor. Take it to a local vac shop and they should be able to order the motor for you.

Posted on Apr 15, 2009

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SOURCE: E2 gold series - makes loud noise on start up

That is normal. All E2 two speed Rainbows make that sound. It is because it has a brushless motor that the computer is controling, and the computer is controling everything. The motor rotor has no coils on it on the rotor, which is very small and light, and the computer gives it a small power boost when you first turn on, then increases the power until ir reaches full speed.

If you have any more questions let me know. I am a Rainbow seller, and a Rainbow expert also.

Thank you,
Ralph

Posted on Jun 13, 2010

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We have the GE sensor microwave WES1358DN1WW. It was made in 5/2009 & bought in July of 2010 brand new. it worked perfect til last week. i put something in it & it started to make a loud...


It's really a pain to open them up but if your feeling up to it, it sounds like the magnatron has vibrated loose and probably disconnected a wire. Disassemble and take a pic if u need help. It's pretty straight forward once inside

Apr 02, 2017 | Vacuums

2 Answers

Microwave has power but won't heat


Hello,

Investigate these three areas if your microwave won't heat

Power Diode

A diode is an electronic component that readily passes current in one direction only and blocks the flow of current in the opposing direction. If your microwave's diode has become defective, your microwave will not heat and you will hear a buzzing noise. Test the diode to determine if this is the cause of your problem. Replace it if it is defective.

Testing a diode

NOTE: Before you test your diode, make sure your microwave is unplugged, and that you discharge the microwave's capacitor.

Whether it is shorted or open, a defective diode will most likely show some sign of defect. Defective diodes will usually emit an electrical burning smell, signifying its defectiveness. Also, it may have split in two, or it may exhibit a burned crack, or possibly even a blistered spot.

A shorted diode is indicated by a loud humming noise from the high voltage transformer, and no heat produced when a cook cycle is initiated. Whereas little or no heat produced in your microwave, with an absence of a humming noise is indicative of an open diode. In either case, the diode has to be replaced.

With your microwave unplugged, and your capacitor discharged, use extreme caution to remove the lead that leads to the capacitor. You can leave the ground connection attached. The side of the diode that goes to the ground is usually marked with a dot, stripe, or arrow. Set your ohmmeter to R x 10,000 or higher. Touch the positive meter probe to the anode and the negative meter probe to the cathode to measure the resistance across the diode terminals. Remember that the cathode is on the side that goes to the ground, which is often marked by a dot, stripe, or an arrow.

A normal diode, that is a non-defective diode, will read anywhere from 50,000 to 200,000 ohms. Differences in microwave make and model account for this large range in resistance readings.

Reverse the meter probes and measure resistance while touching the positive probe to the cathode and the negative probe to the anode. Reversing the probes like this should result in a reading of infinity. Unless a bleeder resistor is present. The presence of a bleeder resistor would produce a reading of the value of the resistor.

High Voltage Capacitor

A capacitor is an electrical device which stores electricity. A defective capacitor may be why your microwave is not heating but you are hearing a buzzing or humming noise. The capacitor will have to be tested to determine if this is the cause of your problem. A defective capacitor will have to be replaced before your microwave will work again. Make sure you discharge the capacitor before you test it, though.

Magnetron

A defective magnetron is the third possible cause of why your microwave is not heating, but you can hear a buzzing noise. Test your microwave's magnetron. Replace it if it is defective.

Testing a magnetron

NOTE: Before you test this component, make sure your microwave is unplugged, and that you have discharged the capacitor.

There are two tests to conduct in order to determine whether or not a magnetron has become defective. If you receive results other than what are detailed below, you will have to replace your microwave's magnetron. Each test is described for you here:

TEST 1: Locate your magnetron and label each of the wires attached to it so that you know which wires are to be replaced where. Set your ohmmeter to the lowest resistance scale. Take a resistance measurement between each of the magnetron's terminals by touching each probe to one terminal each. Reverse the probes and take a second resistance measurement. Each measurement should read less than one ohm.

TEST 2: Set your ohmmeter to its highest resistance scale. Touch one of the meter's probes to a magnetron terminal. Touch the other probe to the metal magnetron housing. Take special caution to not touch the two probes together. This could result in an inaccurate reading. This test should produce a reading of infinity - indicating an open circuit.

Read the tips on the below links on how to replace your microwave oven's diode and how to discharge the capacitor.

http://www.fixya.com/support/r7088355-replace_microwave_ovens_diode

http://www.fixya.com/support/r7088317-discharge_microwave_ovens_capacitor

I hope the above is helpful.

Good luck.

Mar 23, 2011 | Vacuums

1 Answer

We have just opened a De Longhi Icona coffee maker. We followed the instructions to start it, but when we press the coffee button (after the OK light comes on), it makes a loud buzzing noise and no water...


may be you may forgot to fill it up with water...... otherwise i request you to please read the manual book which was given along with machine so that you may get the appropriate solution

Oct 22, 2010 | DeLonghi Vacuums

1 Answer

Remove bottom of cover on vacuum bottom. Making a


on this model, the bottom does not come off but the top does. on the top hood there are 2 latches to turn with a screwdriver and the hood will come off.

Oct 17, 2009 | Hoover Fusion Plus Cyclonic Upright Vacuum...

1 Answer

Started making a loud noise


Wish you had included your model number, could have a clog in the hose or inlet by the brush roll. Sometimes a bad belt will be noisey as well as a bad brush roll. The motor fan may causing the noise, or motor bearings.

Aug 31, 2008 | Hoover Vacuums

1 Answer

Really loud noise.


http://geeksquad.fixya.com/ThreadView.aspx?prdid=40860&thid=810370
Really loud noise.
Posted by Theresa626 on July 20, 2008
The belt inside my Hoover broke and so we replaced it. But when we did, it now makes an extremely loud noise when turned on. We think it’s the roller to the vacuum because it doesn't make a noise when the roller is not in there. The roller sounds like its hitting something. However, we have pushed and pulled and done everything and all seems to be right. Everything is clicked in and the belt is on correctly and we've followed the manual. How can I fix this problem?
Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. It sounds to me that it is a bad brushroll and could need new bearings or a complete new brushroll depending on if id is metal word or plastic. Some brushrolls are rebuildable and some are not, you can check your owner’s manual to see if it is or is not; or it could be the start of a broken fan blade or bearing in the motor section. But that is the only thing that I can think of that might be wrong. Feel free to contact your local vacuum cleaner dealer in your area or you can also contact the Hoover website or cust serv phone # listed below. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.

http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. - 7 p.m. EST

Thanks, Don the Vac Man
Go Ahead. Use Us.

Jul 20, 2008 | Hoover U5018-900 Bagged Upright Vacuum

1 Answer

I have a Dyson vacuum cleaner ...upright....all of a sudden my vacuum started making this awful sound...like a loud buzz...but only when I have it on carpet....when I have it on "floor" mode it's...


it may just be, that on carbet the brushes make noise that you dont hear on woodfloors.
If there is a hights adjustment, set it higher for shaggy carpet and lower for berber.

Mar 16, 2008 | Vacuums

1 Answer

Loud noise


When the motor bearings start to go bad, they will make a loud noise. Some motors if a piece broke off of the fan, then it also will make a loud noise. You may have to replace the motor.

Dec 25, 2007 | Westinghouse WST1500 Wired Special Edition...

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