High pitched buzzin noise - Polaroid TLA-04011C 40 in. LCD TV

Sounds like the high pitched noise is coming from the solenoid valve which allows water to enter the humidifier. Typically when the water pressure is too high, it causes this high pitched sound at the solenoid valve. You can adjust the water pressure a little at a time and see if it helps, just make sure you’re getting enough water across the water panel.

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

Top 136 Complaints and Reviews about Funai TV ' Page 2

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Rating: 1.1 - ‎65 votes
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 ...

www.tomsguide.com/forum/60895-6-help-high-pitched-noise

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

Samsung LCD TV with no video and high pitched sound - Digital TV ...

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Nov 8, 2015 - 25 posts - ‎12 authors
Our is the same model and has started making a very high pitched ... to acutally turn on and then when it does, the screen is still black and we ...

Is your LCD making a buzzing or high pitch noise ...

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Dec 30, 2008 - In my case, the monitor was fine for the first two months. But then started making a buzzing noise... 1) when on, 2) worse when .... my Samsung TV ismaking high pitched noises even if its turned off. I will NEVER EVER EVER ...

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

Some ferrite cores of power supply regulator might poise this problem. Check for it.

call an assistance to your technician...

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.

How deep do you want to get into this?It sounds like the wash pump motor bearings that are worn.You can pull the unit out flip it over and wd40 the bearings in the motor or you can replace the bearings.Try to lube them first.

High pitch noise is created mostly by a Coil or a transformer,is not easy finding the source if you are not familiar with this type of coil since there many sizes and shapes,the set needs to be on while trying to find wich part is doing it SO if you dont know where and how better call a Technician and you will be safe.

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