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The problem is the VIZIO tv turns on by itself - odd times no one is there to turn it on - not suppose to have a timer - and is not consistant.

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Posted on Jan 02, 2017

  • 92 Answers

SOURCE: Vizio LCD 37 Inch Turns Off Randomly

This could be a main board or power board issue. replacing main board and/or power board should resolve this problem.

Posted on Jun 16, 2009


SOURCE: Vizio LCD 37 Inch Turns Off Randomly

I had the same problem with MY Vzio L32 randomly powering itself on and off. The problem Is U26 on the main board. Solder a 10K resister to pins 2 and 3.


Posted on Jul 15, 2008

  • 27 Answers

SOURCE: Vizio VX42L LCD TV died?

it is the power supply. in the given scenario like yours, the PSU is the suspect in 90% of the cases.

Posted on Apr 09, 2010

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SOURCE: Tv comes on but turns itself off immediately. What

It may have gone into shutdown becuase it senses short circuits, or the power supply module may have failed. You need to do some reading and troubleshooting.
Right now the 5vdc standby and partial processor are working but nothing else.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:

Capacitors kit:

Please post back what you find.

Posted on Jul 31, 2010

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2 Answers

I have a TV Vizio Model N E420i-B0 that after a while turn itself of. Some times comes back on by itself, but most of the time you have to unplug it, wait for a while and plug it before turn on again

A lot of vizios do this, try a factory reset and see if that works. go to menu on remote, then click on system,then click on reset and admin, follow info to reset. God-Bless! make sure the timers are turned off first.

Nov 15, 2017 | Vizio Televison & Video

1 Answer

How can I fix a Vizio TV that turns itself off every 7 Minutes?

Check whether the timer is set to that shutdown time 7 minutes.

May 21, 2016 | Vizio Televison & Video

1 Answer

Hisense tv troubleshooting

Check the tv menu settings...go to where you set the date and time etc... usually in the general section..
Look for timer or timers...turn off sleep timer, turn off power on timer and turn off power off timer...cheers

Feb 06, 2018 | Televison & Video

1 Answer

Vizio 32" HD flat scene tv no picture no sound will not turn off

if no picture no sound how can it turn off--you mean a light is still on? Let me also know age of set and if any odd things before it failed like had to turn on several times etc.

Apr 23, 2012 | Vizio L32 32 in. LCD HDTV

2 Answers

My tv turns off automatically

I think your TV was set to turn off by itself automatically. Try to reread the manual about it.

Jun 18, 2011 | Vizio Televison & Video

1 Answer

My vizio TV mdl M550SV turns off by itself. Why?

Go to your T.V. menu and make sure you don't have a sleep timer set. If you don't then it could be an internal problem with the T.V.

May 04, 2011 | Vizio Televison & Video

1 Answer

Shuts itself off periodically

If the period of time in question is reasonably consistent - say 45 minutes after powering up it shuts off - you could be suffering from an overheating issue inside the unit. Temprature sensors can override manual operation and shut the unit off to avoid greater damage (or even a fire) occuring. Have the TV serviced.
If you find it happens at random time intervals from cold this is less likely to be the case and it could be relative to the mains power supply going to the TV. If you suffer from 'dirty power' (power that dips and surges instead of giving a consistent voltage) this could also cause an automatic shutdown condition within the TV. This could happen at any time after the unit has been turned on. An unterruptible power supply (UPS) would help with that.

Aug 18, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Vizio tv

Mybe the sleep timer is on? check and make sure that is turned off

Sep 15, 2008 | Televison & Video

1 Answer

TV turns on randomly

have you tried to put it on a different outlet i acutly had a problom one time with the outlet in my house i had a printer on a timer but the timer was defective and the printer would turn off and than on its crazy so i took it off the timer switched to a new outlet and worked fine.

try that and see good luck


Jun 26, 2008 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

My TV turns itself off and on by itself.

You have a timer that has been accidently set by someone by the remote control.
If you have an instruction amnual for the tv, it will tell you how to turn off the tv's timer.

Feb 13, 2008 | RCA P52930BL 52" Rear Projection...

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