High Pitched Humning Noise

Call for Warranty inspection and repair. Sounds like a transformer that runs the control board.

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TV not turning on; making high-pitched sounds - Tom's ...

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Nov 30, 2013 - 7 posts - ‎2 authors
Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

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We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

HELP! what is that high pitched noise when tv is on? - TV - Audio ...

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Jan 25, 2013 - 3 posts - ‎2 authors
Hello, I hear this constant high pitched noise, almost like ringing, but even ... pitch

Samsung DLP making a buzzing noise, but works fine - High Def ...

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Dec 11, 2009 - 7 posts - ‎5 authors
My Samsung HLP-5063 DLP starting making a loud buzzing noise recently. ... I've only used it to watch TV for a half hour or so at a time, as I have a new LED LCD in my room. ... Other than that, I can't figure out what might be causing it. .... a humming high pitch sound, it will be an issue with the color wheel. RCA D52W25 making high pitch noise - High Def ...
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High pitched sound coming from my Samsung DLP TV - Open Forum ...

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DSLReports
Oct 3, 2009 - 30 posts - ‎7 authors
Its so high pitched that some people can barely hear it, but I guess I have sensitive hearing. ... Anyway, this seems to be a fairly common issue and it is caused by either the ... You're probably hearing a transformer humming.

You should check the earth connections to the cartridge, make certain they are tight and correct.

High-pitched humming noise indicates worn out bearings. Check the blower motor bearings.

You have to isolate this problem. It could be one of three things. The compressor, the condenser fan motor or the water valve that feeds the ice maker and wtaer dispenser. Also if the high pitch sound is compared to that of a bird then it is definitely the condenser motor. To isolate the problem take the back cover off. LISTEN FOR THE HIGH PITCHED/HUMMING NOISE! Use a flash light and see if you can tell where it is coming from while it is doing the noise. Dont try this unless you know what your doing. Stop the condenser fan blade with the end of a hard object, but stop it gradually. Dont try this cause you might brake/bend the blade. But if you did and the noise stop then you figured out your problem. If not ythen disconnect the water valve. It has to doulble harness wires attached to it. if problem still exisit then it has to come from the compressor. Unless you have a warranty then theres nothing no one can do except change it. $300-400 job easily.

A high pitched humming noise is an indication of a ground loop, or a circuit gone bad in side the TV. I recommend taking it to a repair shop. This isn't something you can fix yourself.

Jeremy,

Read one of my posts:
I used a hairdryer and blew hot air into the grill on the bottom of the subwoofer enclosure which reduced the delay time from ~1hr to 5 minutes. (The high pitched noise was still there for about 1-2 minutes)

A high pitch noise comes normally from blown capacitors from the motherboard or the power supply. But mostly high pitch noise comes from power supplies.

You could have to open up the power supply to see them.

Verify if it is the case and replace the faulty part.

Could you specify if noise is coming from : - The freezer - The outside back of the refrigerator - The bottom of the refrigerator