LG TVs running webOS are reliable, but every now and then a numbered error code or app message stops your viewing. Most LG TV error codes come down to network issues, app server problems, or a software hiccup — and the majority can be cleared at home. This guide lists the common codes, explains them, and shows you exactly how to fix each one.
Quick Answer
The fastest fix for most LG TV error codes is a full power-cycle: unplug the TV for 60 seconds, then hold the power button for 10-15 seconds while it is unplugged to clear residual charge, and plug it back in. For network-related codes, restart your router and re-run the Wi-Fi connection. App errors usually clear after reinstalling the app or updating webOS.
Common LG TV Error Codes and Fixes
| Code | Meaning | Fix |
|---|---|---|
| 137 | No internet / network connection lost | Restart router, reconnect Wi-Fi, check signal strength |
| 106 | TV cannot detect the network | Reset network in Settings, try wired LAN |
| 105 | No IP address assigned | Restart router, set DNS to 8.8.8.8 manually |
| 200 / 201 | App or content server error | Reinstall the app, sign out/in, update webOS |
| 503 | Streaming server unavailable | Wait and retry; check the app’s service status |
| No Signal | No input source detected | Check HDMI cable/port, select correct input |
| Red blink (standby) | Power board / backlight fault | Power-cycle; if persistent, call service |
Step-by-Step General Fix
- Power-cycle: Unplug for 60 seconds, hold power 15 seconds, replug.
- Restart the router: Confirm other devices have working internet.
- Reconnect Wi-Fi: Settings > Network > Wi-Fi Connection.
- Update webOS: Settings > Support > Software Update > Check for Updates.
- Reinstall the app: Long-press the app icon, remove, then reinstall from the LG Content Store.
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Prevention Tips
- Enable automatic webOS updates to avoid app-compatibility errors.
- Use a surge protector or stabiliser to protect the power board.
- Keep your router within strong range, or wire the TV with Ethernet.
- Clear unused apps to keep webOS responsive.
When to Call a Technician
A blinking standby light with no picture, visible backlight failure, or codes that reappear after a factory reset point to a hardware fault in the power supply or panel. These need professional repair. If a repair quote is high for an older set, weigh it against an upgrade using our best smart TV in India guide, and learn how to sell your old TV for cash. If webOS feels sluggish, our LG webOS running slow fix may help first.
Frequently Asked Questions
How do I factory reset an LG TV?
Go to Settings > General > Reset to Initial Settings, then confirm. This clears most software-related error codes.
What does error 137 mean on an LG TV?
It means the TV has lost its internet connection. Restart your router, reconnect Wi-Fi, and verify signal strength.
Why does my LG TV say “No Signal”?
The selected input has no active source. Check the HDMI cable and port, power on the connected device, and select the correct input.
How do I update apps on an LG TV?
Open the LG Content Store, go to Apps, and any app with an available update will show an Update option.