If your LG TV repeatedly powers on and off, start by confirming standby light status, power cord and outlet operation, and whether the TV can be powered on using the button on the TV. If the TV turns on from the TV button, the issue is often related to the remote control or its batteries.
This symptom is commonly caused by an unstable power supply, a loose power connection, a remote control sending unintended power commands, or a configuration where the power indicator is disabled and the TV status is misread during troubleshooting.
If the wall outlet, power strip, or recessed energy-saving outlet is not supplying stable power, the TV may restart or cycle on and off. A partially inserted power plug can also cause intermittent power loss.
Weak batteries, stuck buttons, or a malfunctioning remote can repeatedly send a power command, making the TV appear to turn on and off by itself.
If the TV has power but the standby light is off, the Power Indicator setting may be disabled. This can lead to incorrect assumptions about whether the TV is receiving power.
In standby mode, the standby light on the lower edge of the TV should be on.
- If the standby light is off, firmly reconnect the TV power cord at the TV and at the wall outlet.
- If you are using a power strip or recessed outlet, connect the TV directly to a known-good, always-on wall outlet.
Setting: Settings > General > Power Indicator
If the TV is receiving power but the standby light remains off, enable the Power Indicator in the TV settings. Then re-check the standby light behavior in standby mode.
Locate the power button on the TV (its location varies by model) and press it to turn the TV on.
- If the TV turns on and stays on using the TV button, check the remote control batteries and confirm the remote is operating correctly.
- If the TV still cycles on and off, continue to the outlet check below.
Plug a small appliance (for example, a hair dryer) into the same outlet to confirm the outlet is working.
- If the appliance also does not work, check your home circuit breaker and reset it if needed.
- If you are using an energy-saving recessed outlet, use the always-on outlet for the TV.
If the TV continues to turn on and off repeatedly after completing the steps above, contact LG Customer Support to schedule a service visit for diagnosis and repair.
If the steps above did not resolve your issue, please visit the LG Electronics Support website. You can chat with our virtual assistant or schedule a service repair for further assistance.
※ Please note that service fees may apply for engineer visits if your product is out of warranty.
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