LG TV won’t turn on: check power, standby and remote response
First separate a TV that has no power response from one that is on but showing a blank source. LG’s guidance starts with the standby indicator, power cord, outlet and the TV’s own power button. Light behavior and button placement vary across LG models, so treat the indicator as one clue, not a universal diagnostic code.
Keep the checks external. Do not remove the rear cover or test internal voltage. If the TV smells burnt, has been wet, or shows smoke or unusual heat, stop using it and unplug it if safe to reach the plug. Arrange service instead of trying repeated starts.
- Check the standby light if present, reseat the cord, test a working outlet, then try the physical Power button.
- Use only external checks; stop for damaged cord, burning odor, liquid ingress or repeated breaker trips.
Read the standby light and screen
Look at the lower edge for a standby light if your model has one. LG describes a lit standby light as the set being in standby, while a dark indicator can mean it is on. Press Power once and watch for a change: indicator response, logo, sound, or a brief screen glow. Some sets have no visible indicator, so lack of a light by itself does not prove loss of power.
If the screen is black but sound or a menu response is present, switch to the no-picture checks rather than treating it as a dead TV. If there is no light, no startup sound, and no response to the set’s controls, move to the cord and outlet checks.
Check the plug and outlet
Unplug and reseat the power cord at both ends when the cord is detachable. For a built-in cord, reseat it at the wall. Check for a loose plug, a damaged cord, or a power strip that has switched off. LG recommends trying a known-working outlet and checking the household breaker if the outlet appears dead.
For a clear test, connect directly to a functioning wall outlet, bypassing a power strip or surge protector temporarily. Do not use a damaged extension cord or open an outlet. If the same outlet does not power another small appliance, the issue is likely with the outlet or circuit; use a qualified electrician.
- Reseat the cord at the TV and outlet if removable.
- Test the outlet with a known-working device; avoid opening electrical fittings.
Compare the remote with the TV’s button
Replace weak remote batteries and check they are oriented correctly. Remove objects blocking the TV’s lower edge and point the remote toward the set. Then press the physical Power button, commonly under the logo or on the rear, though location varies. LG says a TV that starts with its own button points toward the remote or remote sensor path rather than a complete loss of power.
If the physical button works, test the remote again after fresh batteries. A phone-camera infrared check may work with some phones but not all, so do not treat a missing camera flash as conclusive. Voice/Bluetooth remotes may not show infrared at all.
Decide whether to stop or request service
If the TV responds to the physical button but not the remote, replace or troubleshoot the remote using the matching model guide. If neither control produces a response while a known-working outlet is confirmed, LG recommends customer support or a technician. A persistent standby state after these external checks should be described as a symptom; it does not prove a particular board or power part failed.
When contacting support, give the full model code from the rear label, whether the standby light is on, whether it changes after pressing Power, the outlet test result, and whether the TV responds to its physical button. That lets support distinguish remote, household power and set behavior without asking you to open the television.
The TV has power response; the remote, batteries or control path is the next branch.
Replace batteries and test the remote using the matching LG guide.
The issue may be the outlet or household circuit rather than the TV.
Use another safe outlet for a brief test and have the circuit checked if it remains dead.
The external power checks did not restore operation; internal diagnosis may be needed.
Stop repeated attempts and contact LG support or a qualified TV technician.
Common questions
Where is the LG TV power button?
LG says location varies; it is often under the logo or on the back. Check the exact model guide before reaching behind a wall-mounted set.
Does a standby light mean the TV is broken?
No. LG describes it as standby when lit. Press Power and observe whether the light or screen changes.