Lg Tv Keeps Turning On and Off Repeatedly [Fixed]

Finally, the day has come when you’re able to just sit down and binge on that series you saved for ages or watch a recently scanned movie. 

The next thing you know, out of nowhere, the TV starts going on and off in this disruptive croak. 

Truly, quite an irritating thing to happen. As if the universe conspires to prevent you from getting any leisure. 

For those of you who are wondering how to fix an LG TV that won’t stop turning on and off – this is a typical scenario and yes, it is quite common but you don’t need to endure the bleakness.

This article will identify and explain a number of problems that may be responsible for this kind of behavior so that you can attain a satisfactory level of understanding of the issues at hand. 

Even more importantly, we will demonstrate to you the accurate procedures and furnish you with the appropriate detail regarding the issue. 

Be it a power supply issue or associated settings or even a fault in a component, we will help you understand why the TV is in the state it is in and how you can resolve this issue.

Understanding The Reasons Why LG TV Keep Switching On and Off Automatically

There can be several reasons for the inability of your LG TV to be turned on and off continuously

To start off let’s explain the several factors that are likely at this sub region. 

The first thing that must be done is that the malfunction should be diagnosed because this will also decide how the repair is going to be done

Power Supply Perils

It seems that out of all possible issues, the most common root cause for the system automatically starting and shutting down is buried somewhere in the supply box. 

If liquid-infused contemporary devices like LG TVs do not have to be adjusted continuously as long as there are constant resources. 

Oversupply, a loose outlet, or a tangle of wires can lead to failure of the television’s normal performance.

The explanations as to why this take place:

Loose cables of power sources: 

There are cases where a power source cable becomes loose or cut, which then makes the power connection repeatedly disconnected. 

This may even happen if the power source cable fits quite well inside the television’s power socket.

Power source issues: 

There could be a drop or increase in voltage and this may interfere with the voltage that is fed into the circuit board and then the TV restarts on itself once in a loop.

Power strip issues: 

Depending on the brand and quality, power strips have different voltage ratings and its improper functioning can cause problems.

Software or firmware related issues

Smart TVs are software-dependent devices hence they are vulnerable to software bugs and glitches, just like computers. 

An LG TV turning itself on and off irrationally may be caused by faults in the firmware [due to corruption or because it was never updated to begin with].

 

Why this happens:

Outdated firmware: 

LG TVs require regular updates in order to work effectively. 

 

TVs that do not have current updates will not only operate poorly but will also freeze.

Corrupted firmware:

In rare instances, a firmware update can be performed incorrectly or can be corrupted thereby causing the TV to behave unexpectedly.

Misconfigured settings: 

An incorrectly configured setting can equally contribute to the issue. These may include situations such as automatic power on, automatic sleep timers, and the HDMI-CEC.

HDMI-CEC or Connected Devices

 

HDMI-CEC which stands for High Definition Multimedia Interface- consumer electronic control allows the connected devices to communicate with each other. 

 

If the TV and one of the devices connected to it such as a soundbar or a game console have conflicting settings, it causes the TV to turn on and off repeatedly.

Why this happens:

Faulty HDMI cable or device:

Defect- HDMI cable or HDMI device – HDMI cables and devices can be HI-DEF, bad, and damaged. This may be the cause for a TV to switch on and off.

Conflicting HDMI-CEC settings: 

Such circumstances may be quite possible if these devices have HDMI-CEC settings that interfere with the restart of the TV.

Faulty Internal Components

 

Such circumstances may be quite possible if these devices have HDMI-CEC settings that interfere with the restart of the TV.

Why this happens:

Capacitor failure:

Capacitors malfunction: 

 

Capacitors assist in the regulating of power to the TV. If this capacitor fails, the TV may lose power, which will trigger a rotating cycle of power switchovers.

Overheating:

Most of the time, if the internal wiring is getting too hot, the TV will switch off by itself to save it from burning out.

Loose connections or shorts: 

A loose connection or short may also be the inside reason a TV has problems.

Remote Control or Power Button Malfunctions

 

In some cases, it may not even come from the TV set but from the remote control or from the power button of the TV. 

 

If the power switch is broken and unable to do its duty properly, it may potentially cause the TV on and off switches to the television set constantly.

Why this happens:

Stuck power button: 

In most cases, a power switch which appears to have become stuck or broken will easily get the TV turned on and off at random while automatically restarting on an endless loop scenario.

Remote control issues: 

In some instances, the TV remote control may get stuck on the power option, the battery gets shorted, and all these conditions do not turn out to be good for the TV remote control and the TV.

Other electronics interference:

In some cases, the presence of other gadgets within the household can endanger the signals aimed at controlling a TV set.

Step-by-Step Troubleshooting for an LG TV That Keeps Turning On and Off

Having based on the cursory analysis the various factors that are capable of affecting this, let us now attempt to do something about it. 

 

We will provide details about solving each stage on how to get this problem fixed and how to remove it.

1. Check the Power Supply

The first measure before attempting any technical corrections is to check the power source as well as the power supply.

Steps:

Inspect the power cable:

The procedure should be undertaken where the power lead is firmly attached to the outlet and the TV set. 

 

Look for wear and tear on the wire and if any is observed, then replace it without any delay.

Test a different outlet: 

It is most appropriate to switch the TV to a different electrical socket and test its performance without making any changes to the existing station.

Avoid using a power strip:  

It is most appropriate to switch the TV to a different electrical socket and test its performance without making any changes to the existing station.

Try a surge protector: 

Use surge protectors if the TV is subjected to power surge frequency in its areas of placement.

2. Perform a Software Update or Factory Reset

 

If it seems the power supply is good, but the TV unit has not stopped switching off or turning itself back on, the following point of investigation is software-related.

Steps:

Check for firmware updates:

For this procedure, firstly, take your remote control and press the button that says Settings.

To download the most current version of the software, select Update Now and complete the steps as instructed.

If an update is available, select Update Now and follow the prompts.

Factory reset:

On the remote control, click on the Settings button.

Go to All Settings > General > Return to the Factory Settings.

By performing a factory reset, all settings will revert to the original which can be advantageous in removing any malicious software or misconfigurations. 

 

That may have been the cause of the problem in the first place.

My LG TV Turns On Then Off Immediately [Fixed]

3. Disconnect Devices and Check HDMI-CEC

 

In the next step, we will try to check whether the issue is caused by any of the external devices connected, especially through the HDMI-CEC feature.

Steps:

Unplug all devices: 

Disconnect everything from your TV including consoles, streamers, soundbars and HDMI cables.

Turn on the TV: 

When there are no devices, turn the TV on and check if the power cycling continues. Leaving the TV on means that the issue is probably with one of the devices plugged in.

Disable HDMI-CEC:

Now switch HDMI-CEC off: 

Click on Settings on the remote.

Select All Settings > General > HDMI-CEC and switch this on.

4. Inspect Internal Components (Only if Necessary)

 

When there is still no remedy after trying one of the above steps, then there must be more serious damage done to the inner parts of the TV set.

Steps:

Check for overheating:

Check for excessive heat: 

Keep that TV positioned in a way that doesn’t allow it to receive extra heat. Look at the position of the TV to ensure that. 

There is sufficient distance between the wall and the TV so that air can flow freely.

Professional help: 

If a capacitor failure or any other internal problems are suspected, then one should seek professional repair services. 

 

In any case, it is discouraged to open the TV by yourself unless you have had prior exposure to electronics.

5. Check the Remote and Power Button

 

Lastly, if the TV is still going on and off by itself, there is a need to consider the remote control or the power button as the cause of the problem.

Steps:

Check the remote: 

First take the batteries out of the remote and observe whether the TV can still turn on or off. If it does, a new remote may be useful or the old remote has to be reset.

Inspect the power button: 

Try to see if the TV power button is damaged or stuck. If yes, it has to be repaired or replaced.

 

Frequently Asked Questions

Why does my LG TV keep turning off every few seconds?

The most likely reasons include problems with the power supply, maybe the power cord got abused or surged, software bugs and faulty internal parts. 

 

Follow the troubleshooting steps outlined above to be able to narrow down the scope of the problem.

Can a bad HDMI cable cause my TV to turn on and off?

The TV goes on a cycle because of a corrupted HDMI cable or an HDMI-CEC that has been improperly set. 

 

Turn off all of the HDMI devices and attempt to unplug all of the HDMI devices to see if this resolves the situation.

How can I tell if my TV is overheating?

If when feeling the TV, there is maximum heat coming from it or the power cycling doesn’t stop even after long periods, then it seems too much heat is present. 

 

It’s important also to check the location of the TV whether there is enough airflow around it and whether the vents are not blocked.

Should I perform a factory reset if my TV is repeatedly turning on and off?

Definitely, a factory reset can be useful in fixing software bugs that are causing the problem. However, it is important to note any critical settings or information that have to be retained.

Conclusion

 

To sum up, if your LG television keeps going off and on suddenly, do not worry. 

It is a quite normal predicament with a number of possible roots, including issues in the power supply, software errors, issues with HDMI connections or damaged internal parts. 

Using the steps provided in this article, you should be able to determine the possible cause of the problem and rectify it.

For instance, I had to deal with the same troubleshooting process regarding my LG television a couple of months back. 

After many attempts for a solution, it was discovered that an incorrect HDMI-CEC parameter was the cause of the problem. 

When I removed that from her settings, the problem went away.

It is advisable to take the most logical approach: 

start slowly and eliminate all possible sources of the issue in the correct order – first the power supply, then updates and connected devices, and after that more difficult solutions.