Samsung TV turns off by itself

Table of Contents

Simple causes of the problem

There are many explanations for the independent operation of equipment, and very often it is not the manufacturers of equipment that are to blame for them. So, here are the reasons that the Samsung TV turns itself off and on:

Once you have checked and corrected the problems with your TV, check if the viewing angle of the TV is in the correct position. This is important for both picture quality and your health.!

Power supply problems

  • You will need to unplug the TV and open the cover.
  • Then we independently inspect the state of the board using a magnifying glass or other glass that magnifies the image.
  • If you notice any, even the smallest crack on the part, then the problem lies precisely in this.

Important! This problem is very serious and in order to fix it, call a professional, he will do it himself.

Troubleshooting the problem yourself

In order not to attract a master and not pay him decent money, you can resort to fixing the problem yourself, but keep in mind that this can harm both your health and your equipment. You can use these methods if you are completely confident in yourself.

Important! All of the following procedures can be carried out provided that the TV is de-energized.

Sleep timer

Understand the settings for this option. A timer may have been set to turn your TV on and off automatically. Oddly enough, this is a common reason for contacting the SC.

Serviceability of buttons

After you have removed the cover, try unplugging the button module and starting the TV. Any non-contact will activate the protection mode and your Samsung TV will turn itself off and on.

Do not forget that it is not safe to turn on the TV when disassembled. Put back the back cover.

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Serviceability of external devices

Diagnose the operation of the TV when the antenna and Wi-Fi router are turned off. So, for example, if the router is set to sleep mode, then the Samsung TV turns on and off by itself when trying to resume the Internet connection. Just turn off this mode in the router.

Power supply defective

Test the standby indicator to make sure it is working properly. When responding to shutdown, we conclude that the breakdown lies in the power supply.

If it was not possible to identify the problem on your own, we advise you to immediately call a wizard who will help you figure out and fix the problem.

Perhaps during the diagnosis, you identified other defects, for the solution of which we also have a lot of useful information, for example, we suggest reading the articles:

Excessive dustiness of the device

Is the main major problem. It is the dust that contributes to the closure of the contacts, although it is not a strong conductor of electricity. To remove dust, you just need to lightly vacuum the TV yourself, but many people prefer to contact a professional who can professionally clean the device from the inside.

Why does Samsung TV turn on itself?

Samsung TVs turn on by itself often due to dust and moisture accumulation. The liquid that got inside leads to oxidation of the contacts, and, as a result, to the spontaneous start of the device. Dust can provoke a short circuit, and therefore the equipment falls into protective mode.

How to reset your TV to factory settings?

Enter the TV menu: depending on the remote control, press either the “Menu” button. or the “Home” button and select “Settings” on the TV screen. Select “General”. Select “Reset”. Enter PIN-code (if the code has not changed, dial 0000).

Why does the TV turn off by itself?

Power surge or faulty power supply. Usually the most common problem that allows you to turn off Smart TV. Due to a surge or peak voltage, the TV may turn on, especially if it is old or the capacitors of the power supply are damaged.

Why does the TV screen light up after turning off?

IMXO phosphor makes the static accumulated during operation glow. The picture is created by an electron beam on a phosphor. And the phosphor cannot instantly go out when turned off. This is called afterglow.

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Why Samsung phone turns off by itself?

Typically, the Samsung phone turns itself off when there is an incoming call. Due to the wear of the “upper” loop during the operation of the mobile device, a short circuit occurs in the power supply circuit, which leads to similar consequences. Replacing a worn part will resolve the situation.

What can be with the TV turns on and off immediately?

One of the most common reasons the TV turns on and off spontaneously is a faulty power button. over, the shutdown may follow immediately after the device is turned on. Jamming, sinking of the button and other oddities when pressed indicate that the part needs to be replaced.

How to Fix Samsung TV Turning Off and On By Itself

Why the TV won’t turn on?

If the TV does not turn on, but makes clicks, then most likely the blocking module has been activated. This is a systemic issue that can be caused by both accumulated dust (and short circuits) and power surges. The TV does not turn on and the light does not light up. it means that the power circuit at the unit is broken.

Why does the TV turn on by itself?

The most common reasons the TV turns on by itself are foreign objects near the remote control’s power button, external devices connected to the TV, and your settings. If the power button is stuck, clean the remote control.

Why does the TV screen light up after turning off?

IMXO phosphor makes the static accumulated during operation glow. The picture is created by an electron beam on a phosphor. And the phosphor cannot instantly go out when turned off. This is called afterglow.

What to do if the TV turns on and off Samsung itself?

If you notice that your Samsung TV turns on and off by itself, try restarting your tech first. You need to do this not from the button, but by pulling out the plug from the socket, after that you need to wait 15-20 minutes so that the diode and capacitors cool down and neutralize the charge.

Why does Samsung TV turn itself off?

If the TV stops working on its own, be sure to inspect the cable, power adapter and outlet where the device is connected. Lack of power supply at non-contact becomes the cause of failures, as a result, the TV will turn off, thus leaving the protection mode.

Why does Samsung TV turn on itself?

Samsung TVs turn on by itself often due to dust and moisture accumulation. The liquid that got inside leads to oxidation of the contacts, and, as a result, to the spontaneous start of the device. Dust can provoke a short circuit, and therefore the equipment falls into protective mode.

What to do if your Samsung TV won’t turn on?

What to do if your Samsung TV won’t turn on

  • Carefully inspect the TV from all sides: there should be no mechanical damage on it.
  • Disconnect all devices and cables from the TV (except the power cable): CAM module, antenna, Internet, HDMI cable, etc.
  • Try turning on your TV.
  • Unplug the power cord from the TV cabinet and from the outlet.

What about the phone if it turns on and off immediately?

When the phone is constantly restarting, turning off or turning on by itself, this indicates first of all that there is a software failure. Also, the reasons can be hidden in mechanical damage after a fall or shock. In these cases, you can go to the master to determine the breakdown.

Why does the plasma TV turn off??

The most popular reason for the TV to turn off spontaneously is the breakdown of the power button. Because of this, it may turn off immediately after you turn it on. In older models, the button is held down. Examine the power button carefully.

Why Xiaomi turns off by itself?

A Xiaomi smartphone may turn off due to battery problems, mechanical damage to various modules, a failure in the firmware, or a faulty mobile phone power button. Problems can occur with the Xaiomi Mi 8 model as well as with other models of the brand.

Why does the tablet turn off by itself?

If the tablet turns off spontaneously, most often this is caused by hardware problems, namely: incorrect operation of the battery, which leads to an interruption in the power supply to the device; the use of “non-native” chargers causes the tablet to turn off when the charger is connected.

samsung, turns

Why Huawei phone keeps turning off?

If your Huawei phone turns off by itself, this is the most serious reason to contact a service center. Often the reason for arbitrary shutdown in Huawei phones is an incorrect firmware version, or installed applications that conflict with the OS and with each other.

Why does Android turn off by itself?

The reasons for unpredictable shutdowns or reboots can be: Failed or incorrect installation of applications; Battery malfunctions; Mechanical impact (including from falling).

Why does the phone turn off during a call??

Turning off the phone during a conversation can also be caused by mechanical damage that was done earlier: the device fell or water got into it, the contacts were clogged with dust. It also happens that the charge control indicator shows a false battery level during a call, i.e.

Why iPhone turns on and off by itself?

If the iPhone turns on and off immediately, then the reason for this may be: Deterioration of the battery. Its current voltage is simply not enough to initialize the device (it must be at least 2.5V), which is why when trying to start the OS, the device turns off.

Why does the phone display light up by itself?

The phone screen itself lights up. a hardware problem

For example, dust and dirt that accumulates in the charging port can interfere with the power supply process, causing the notification light to come on. This, in turn, leads to spontaneous backlighting of the screen. it lights up as if by itself.

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Software

The Samsung Smart TV may be disconnecting due to new, just updated software. Disable the automatic update module on the hardware or install an older software version.

To do this, you need to go to the Internet and, by light manipulations, download the shell, and then send the data to the device using a USB cable. Open the downloaded file and a message about downloading new software will appear on the TV screen.

After about 30 seconds, a shutdown will occur, and then it will be seen that the indicator lights up and the equipment turned on with the old version of the control programs.

Power supply problem

If the Smart TV does not respond to the on / off button on the remote control, and the red standby indicator is constantly on and off, then the power supply malfunctions can be attributed to the category of the above reasons. Although TVs of this type are of high quality, it is he who belongs to its most vulnerable elements.

The reasons for the malfunction of this part may be power surges or breakdowns of outlets in the house. Everyone can see what is wrong with the block. Open the back panel, and if the component has become unusable, then you will immediately see that its surface is swollen and blackened.

You can only replace the module yourself if you have the appropriate education or knowledge in physics and electronics. If they are not there or you do not want to put the technician at risk (and yourself too), then you should contact the service center. They will figure out why the device turns on spontaneously. If this is due to a damaged power supply, the masters will quickly solve the problem by replacing it with the original.

If after changing the power supply nothing changes, call an electrician for a specialist to check the voltage in the outlet and adjust the power supply system in the house.

Sleep timer

An incorrectly set sleep timer is often the culprit for the TV turning off itself or turning on itself at an arbitrary time. It is necessary to carefully read the instructions and set the timer correctly or reset the TV to factory settings.

The TV itself switches channels

If the TV switches channels in random order, without the participation of the owner of the device, this signals a problem with the remote control or buttons on the case. Sometimes one of the buttons on the control panel sticks. In this case, he constantly sends one command to the device, for example, switches channels or changes the volume.

To make sure of this, you need to take the remote control out of the room or remove the batteries. If the TV works without a remote control, you need to inspect the remote control. Perhaps one of the buttons has fused, in which case it should be corrected and the malfunction will be eliminated. In some cases, the cause of such a breakdown may be an incorrectly carried out repair of the control panel. This happens if foil was glued to the bottom of the rubber buttons. The latter could fall off and close several contacts. It is necessary to disassemble the remote control and remove the foreign element. Mechanical buttons on the cabinet can also cause random channel switching. There may be several signs of such a breakdown.

  • not the same channel is turned on, but different ones, or different functions are activated, for example, the volume changes or the program is switched;
  • the TV does not respond to the remote control when a defect occurs;
  • the malfunction is detected not constantly, but periodically, etc.

To fix the problem, it is recommended to contact the service center representatives.

Power cord and sockets

If the TV does not have enough energy from the electrical networks, after turning it on, it will immediately turn off and begin to reboot several times. This happens due to power surges or due to a problem with the power supply or outlet. Make sure the unit is intact, the power cord is not bent or damaged by pets, the connectors and plugs are not damaged, the plug is not charred.

You will also need to check the status of the outlet. You can try plugging the TV panel into a different outlet or extension cord to see if the problem persists. Power surges also affect the fact that the TV turns on or off by itself. The stabilizer will help to solve the problem.

Prevention of malfunctions

In order to prevent breakdowns and not find out why the TV turns on itself, it is necessary to carry out simple preventive actions.

  • The equipment must be regularly cleaned of dust, and moisture must not be allowed to enter the device.
  • Do not use the timer function or set it correctly.
  • Keep track of software updates and install them regularly.
  • If voltage drops occur constantly, purchase a stabilizer.

Conclusion If the TV turns on and off by itself at any time, this can happen for a variety of reasons. To understand what happened to the equipment and what to do to fix the breakdown, you need to diagnose the device. The user can eliminate external faults on his own, but if you suspect a defect inside the TV receiver, it is better to contact professionals so as not to aggravate the situation.

Owners of Samsung TVs are often interested in why Samsung TV turns off and on itself, or randomly scrolls through channels. There are many reasons for this behavior of technology; to identify them, you need to diagnose the TV receiver.

Software Update

Old firmware can also be the reason the TV turns off on its own. To fix the problem, you will need to update the software. This can be done directly in the TV receiver menu, if it is equipped with the Smart TV function, or through a USB flash drive, having previously downloaded a new software version to it from a computer. If the automatic refresh function is active on the TV panel, the user may notice that the LCD TV screen glows at a certain time and then turns off. This means that the device checks for new software versions, installs them, and then turns off. So that the technique does not arbitrarily turn on and interfere with the user, you need to disable this option.

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Sleep timer

An incorrectly set sleep timer is often the culprit for the TV turning off itself or turning on itself at an arbitrary time. It is necessary to carefully read the instructions and set the timer correctly or reset the TV to factory settings.

What to do if your Samsung TV turns on and off immediately

No equipment is immune from premature failure. Therefore, even if you buy expensive equipment, still keep in mind that there is a possibility of device breakdown. Of course, TV equipment from Samsung is no exception to this rule.

There are many different symptoms that indicate equipment malfunctioning. The most common sign of a device failure is a Samsung TV turns off and on itself.

What to do in such cases? Of course, first of all, you need to find out the reason for the incorrect operation of the equipment. By determining what caused the malfunction of the Samsung TV, you can quickly fix the breakdown. This can be done both independently and by contacting the service center.

External causes

After carrying out elementary diagnostics, the user will determine why the Samsung TV turns off itself or, on the contrary, starts up randomly. As a rule, the elimination of minor failures does not require special skills, so you can handle it yourself without contacting a service center.

Now we will analyze the most obvious reasons for the incorrect operation of external type equipment, and also analyze the best ways to solve the problems that have arisen.

It is clear that immediately disassembling the TV is absolutely definitely not worth it, first you need to check it for external faults:

  • breakdown of the remote control;
  • damage to the power cable;
  • sleep timer;
  • failure of the antenna or module for wireless Internet connection.

Now let’s take a closer look at all of the above reasons why TVs turn on automatically.

Broken buttons

After removing the back cover, turn off the module with buttons, and then turn on the TV. Each non-contact will put the device into a protective mode, so the technique starts to shut down randomly. In no case should you turn on the TV with the rear panel removed, as mentioned earlier, this is not safe.

Problems on the TV

Elimination of malfunctions in the operation of television equipment should begin with a full reboot, perform a full reset of user settings. Disconnect the device from the mains to temporarily relieve the capacitors, they should cool down a little. Wait literally 1-2 minutes, and then turn on the TV again.

The main thing is not to confuse a hardware failure with a software failure. Operational issues are addressed by installing a fresh service pack. Hardware is a little more complicated, because you have to disassemble the TV.

If you have updated the operating system, but Smart TV still lives its own life, then you need to dismantle the back panel and look for the cause of the problem with the hardware component of the device. If you do not have the skills to disassemble TVs, then it is better to contact the service center.

What should be considered when disassembling television equipment? First, to remove the back panel, you need to unscrew the screws, for this you need a screwdriver of the appropriate size. When unscrewing the fasteners, remember their location, otherwise you will face serious problems during the assembly process.

Secondly, if you replaced the faulty hardware module and now want to check if the TV is working, you should replace the back cover and tighten all the bolts. All this is done for safety reasons.

Broken remote

If the TV turns on and turns off immediately, and does not respond to the remote control, then you need to check the operation. Inspect the device for mechanical damage, check if the buttons are sticky, change the batteries.

Using the smartphone camera, you can check if the remote control is feeding from the infrared sensor. Point the camera at the sensor so that you can see it on the smartphone screen. Then press several different buttons, if there is no glow, then the remote control is broken. Reason. the battery life has run out or mechanical damage.

Wi-Fi disappears

Problems with a wireless Internet connection can arise not only due to a breakdown of the Wi-Fi adapter, but also due to software failures, incorrectly specified settings. It cannot be ruled out that the cause of the problem was the router. Try connecting to your home network using other devices such as a smartphone. If everything works, then LCD TV Smart TV requires replacement of the Wi-Fi module, for this contact the service center.

The problem is in the outlet

If the TV stops working on its own, be sure to inspect the cable, power adapter and outlet where the device is connected. Lack of power supply at non-contact becomes the cause of failures, as a result, the TV will turn off, thus leaving the protection mode.

  • Check connectors and plugs for mechanical damage.
  • Are there any fractures or kinks in the power cable?
  • Look for dark spots, charred spots on the fork.
  • Fix the socket firmly.

If possible, connect the TV to a different outlet.