Two of my TV's make a clicking/popping sound which isn't coming from the speakers. Help!

[TylerDurden77]

For a couple of weeks now my 42 Inch LG LED TV has been making a kind of clicking/popping sound. I was a bit concerned it was going to blow up so I bought a new Sony Bravia 48 Inch LED yesterday. All was well yesterday but I have turned it on this morning and it is making the same noises as the LG.
I am researching it online and some people are saying it could be a power outlet problem. I use an extension cable as the TV is too far from a plug socket. I have tried a different extension cable but it is still doing it. It's very random. Sometimes happens every 10 seconds and other times it is every few minutes. Usually lasts for around 10 seconds to 30 seconds and stops.
Was told it might be my Sky Box interfering with the TV but if this was the case then it would have always done it and I never had any problems up until a couple of weeks ago.
Any help would be greatly appreciated.
Thank you.

Update: It's not the Sky Box as I have totally unplugged it and the TV is still making the noise.

 

[makkem]

Hi
Since you are using SKY I will assume you are in the UK.
Can you try plugging the TV into a different socket temporarily ,preferably one on a different floor of your house so it is on a different ring main circuit and see if the noise still occurs.
I suspect it could be a loose wire on one of the sockets on that ring .
If it is a socket with a switch then it could also be a problem with the contacts of the switch.

 

[TylerDurden77]

Hi and thanks for the reply,

I am indeed in the UK.
I have plugged it into a different socket on the opposite side of the room. I live in a bungalow with only one floor.
No noises as of yet. Hopefully this has fixed it.
I will monitor it over the next 24 hours and post again.
Thanks again for your help

Hi
Since you are using SKY I will assume you are in the UK.
Can you try plugging the TV into a different socket temporarily ,preferably one on a different floor of your house so it is on a different ring main circuit and see if the noise still occurs.
I suspect it could be a loose wire on one of the sockets on that ring .
If it is a socket with a switch then it could also be a problem with the contacts of the switch.

 

[makkem]

Hi
You might want to check or have checked the original socket as there may be a loose wire into it.

 

[TylerDurden77]

Hi again,

I have now tried both sets of sockets in the room where the TV is located and it is still making the noises.
It sounds like something is clicking inside the TV. It's very odd.
Any suggestions?
Thanks again.

Hi
You might want to check or have checked the original socket as there may be a loose wire into it.

 

[makkem]

Next time it happens can you nip into your kitchen and see if the fridge is running and see if the noise stops when the fridge stops.

 

[TylerDurden77]

Next time it happens can you nip into your kitchen and see if the fridge is running and see if the noise stops when the fridge stops.

Hi again,

As far as I can tell the noises do indeed start when the fridge kicks in. I have noticed the noise when the fridge is not running but it is nowhere near as bad.

New fridge perhaps?

Thanks again.

 

[makkem]

Possibly the RFI suppressors have failed in the fridge,it may be possible to get them repaired .
One of these may also help.
http/

 

[TylerDurden77]

Possibly the RFI suppressors have failed in the fridge,it may be possible to get them repaired .
One of these may also help.
http/

Brilliant thanks very much for your help. I will get one of the surge protected extensions and then update you on the situation.
Thank you very much

 

[makkem]

Make sure you get a surge AND RFI extension like the one I linked to for the best chance of stopping the noise.

 

[TylerDurden77]

Make sure you get a surge AND RFI extension like the one I linked to for the best chance of stopping the noise.

Will do. Which should I plug into the extension? The fridge or the TV?
Thanks again.

 

[makkem]

Plug your TV into the extension.

 

[TylerDurden77]

Plug your TV into the extension.

Great thanks. I will let you know how it goes.

 

[TylerDurden77]

Plug your TV into the extension.

Hi again,

I have just noticed the TV is making the noise even when it is not turned on. Woke up this morning and it was doing it.
Any ideas?
Thanks.

 

[makkem]

Does not turned on mean powered down with the remote or switched off/unplugged from the wall.
And it is definitely the TV that is making the noise ?

 

[TylerDurden77]

Does not turned on mean powered down with the remote or switched off/unplugged from the wall.
And it is definitely the TV that is making the noise ?

Hi. Just when it is powered down with the remote (on standby)

It's 100% the TV. I'm certain of that. Sometimes sound like there a mouse squeaking and scratching around in there.

Thanks.

 

[makkem]

That means there is still power to the TV power supply.
It may be the capacitors in the power supply charging and discharging,which would suggest that the mains voltage is fluctuating.
If it was me ,I would turn the power off and unscrew the socket from the wall and give the wiring into the socket a tug to make sure it was tight in the terminals.If nothing was found then I would repeat the process on the other sockets on that ring main.
The Fridge also seems to be a contributor so you could try unplugging it for a short while and see what happens.

 

[TylerDurden77]

That means there is still power to the TV power supply.
It may be the capacitors in the power supply charging and discharging,which would suggest that the mains voltage is fluctuating.
If it was me ,I would turn the power off and unscrew the socket from the wall and give the wiring into the socket a tug to make sure it was tight in the terminals.If nothing was found then I would repeat the process on the other sockets on that ring main.
The Fridge also seems to be a contributor so you could try unplugging it for a short while and see what happens.

I unplugged the fridge and plugged it into the cooker socket and since doing that the TV hasn't made a sound. Hopefullyit has sorted it.
If not I will be back! lol

Thanks so much for your help.

Well that was a shot lived thing! Woke up this morning to the sound of the mouse squeaking away inside the TV again. Hopefully the new extension will fix the problem when it arrives. If not then I'm at a loss.

 

[TylerDurden77]

After all that it turns out it was the new central heating system. The pipes were making the noise not the TV!

Thanks for the help anyway.