When i try to turn on the tv it wont come on and then if i leave it a while it will turn on and work fine so i took it off the wall and gave it a clean and now it wont come on at all it is a LG plasma tv

Main digital board fault. Check and replace it. In most cases a firmware update too might be necessary. http://electronicshelponline.blogspot.com/

Hi does the TV have any standby light etc, if so power off at the wall and leave for 1 minute the power back on and watch the standby LED it may or may not blink try to power on if the light blinks this may be a fault code and you can search this up with the model number.

It is not you tv its the plug on theb wall. It is probably loose, and causing the intermittent problem you are having. You may notice looseness as you plug it into the wall. Your TV is fine.

If you had a power surge check your homeowners insurance.

TV turned off and will not turn back on.

My problem turned out to be silly but simple. I recently took my TV off the wall and mounted it on a stand alone platform. I snaked the power plug through the back tube and left too much tension at the entry point for power. If you leave the slightest tension the female connector will jiggle and it will shut off. It normally takes 3 minutes before you can retry and then the problem persists. Try allowing more slack and/or buying a new power connector to make sure the plug connects correctly. Good Luck!

If you're using a DVD player or other component using the Component cable hookup, try unplugging that from the mix, unplug the power cord for the TV from the wall and wait 15 seconds and plug it back in, then power the TV back on. Mine used to do this and I gave up on the component cable option and went back to composite (RCA).

I had the same problem and took it apart. Before the repair there was no "click" when I pushed the button, a clue to the problem. The on-off button on the front pushes a weakly made angle piece of plastic inside which had broken. The plastic piece in turn is supposed to push an internal switch which is offset to one side.

I used epoxy (Araldite) to repair the broken plastic angle piece, but it still looks weak to me so I switch the tv off at the wall and leave the on-off button alone (though it does work now).

Opening the case requires some knowledge and care, and can be dangerous. It may void the warranty so be careful or give it to a qualified repair person.

Hope this helps!