The sound of voices conversing in the living room wakes you up. The TV is on but nobody is watching, so you slip inside with your heaviest frying pan. Not a ghost, so don’t be alarmed. (Well, I guess it’s not a ghost.) If your TV randomly turns on or off, another technological device is probably interfering with its rest. Here’s a troubleshooting guide.

1. DISCONNECT YOUR TV (AND PLUG IT INTO THE WALL) Before doing anything else, try turning it off and on again, like with all technology. To test if the issue still exists, unplug your TV entirely, hold down the power button for ten seconds, and then plug it back in.

To eliminate that as a potential factor, consider plugging your surge protector straight into a wall outlet if you’re using one. Try another outlet, preferably one that isn’t attached to a switch, if it was already plugged into the wall. In this situation, you might also want to plug it into a surge protector.

2. DEACTIVATE HDMI-CEC

Consumer Electronics Control (Opens in a new window) (CEC) capability enables HDMI-based device control between your devices. For instance, CEC can instantly turn on your TV and change its input when you turn on your PlayStation, saving you from having to reach for another remote.

When it performs as intended, the feature can be highly useful. However, when it misbehaves, it means that signals will be misread and your TV will turn on and off. To test whether it resolves the issue, access the settings menu on your TV and turn off CEC. If it does and you still want to use CEC, you’ll need to start turning off CEC on other devices to find out which one is generating the erroneous signal.

Depending on the maker of your TV, it can go by a different name. Samsung refers to it as Anynet, LG as SimpLink, and Sony as Bravia Sync. To find out what the setting on your TV is named, you might need to look elsewhere.

3. UNLINK FROM WI-FI Ironically, many TVs’ “smart” functions can frequently make them appear a little dull. It’s possible that a routine or automation is inadvertently turning on or off your TV if it’s connected to other smart home appliances like SmartThings, Alexa, Google Home, or Logitech Harmony. Your phone might even be turning on your TV automatically if it has built-in casting capabilities every time you try to watch a YouTube video.

Open the Wi-Fi settings on your TV and turn it off for a few days before searching through each of these apps. If the smart services can’t connect, they can’t broadcast those unintentional signals. If disabling Wi-Fi fixes the issue, you might need to look through your other smart gadgets and apps to see if one is frequently interfering with your TV.

4. VERIFY THE POWER TIMER ON YOUR TV A built-in feature on many contemporary TVs enables you to switch the TV on or off at a particular time of day. It’s possible that a youngster or cat sitting on the remote set up your TV so that it turns on or off at the same same moment every time. Check the TV’s settings to see if you can locate the power-scheduling option and make sure it is turned off.

5. Replace your remote’s batteries

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As with other technological issues, these issues can occasionally be resolved by a straightforward software update. However, I include this at the bottom because TV firmware updates may result in their own issues. This is why I advise not updating until it is absolutely required.

Whether you haven’t located the issue’s cause, check your TV’s settings to see if a firmware upgrade is available. If your TV requires manual installation using a flash drive, verify if the manufacturer has published any updates for your model on their support website.

9. COMPLETE A FACILITY RESET If all else fails, you might need to take drastic measures and reset your TV to its factory default settings. The setting that was causing the issue should hopefully return to its default state. Just make sure that if you intend to alter your settings back, you do so gradually over the course of a few days. In this manner, if the issue reappears, you are aware of the precise setting that is to blame.

Get in touch with the manufacturer’s assistance if a factory reset doesn’t work. Your TV model might have a known defect or hardware issue, and a technician might be able to permanently fix the issue.

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