LG TV Error Code 137

Seeing error code 137 pop up on your LG TV can be frustrating. This cryptic code doesn’t tell you much about what’s causing the problem or how to fix it. But don’t worry – this guide will walk you through everything you need to know to troubleshoot LG TV error code 137.

What Does LG TV Error Code 137 Mean?

LG TV error code 137 indicates there is an issue with the panel or backlight on your TV. Specifically, it means that communication between the panel and the TV’s internal components has been disrupted. This communication error is preventing your TV from properly displaying an image.

Potential causes of LG error 137 include:

• Faulty LED backlight system
• Issues with the panel or panel connections
• Main board problems
• Power supply failures

So while this error code doesn’t pinpoint the exact problem component, it tells you the general area to focus your troubleshooting efforts – the TV display panel and backlight.

Troubleshooting Steps for LG TV Error Code 137

Here are the recommended steps to resolve LG TV error 137:

Check External Connections

The first thing to check are all the external cables connected to your LG TV. Make sure that all required cables like the power cord, HDMI cables, etc. are securely inserted into the correct ports on the back of the TV. Loose connections can sometimes cause communication errors.

Also inspect the cables themselves for any damage. If you see bent pins, torn shielding or cracks, replace the damaged cables.

Power Cycle the TV

If the connections check out, the next step is to power cycle the TV. This means turning the TV off, disconnecting it from the power source for at least one minute, then plugging it back in and turning it on.

Power cycling resets the TV components and re-establishes connections. This simple fix resolves many minor glitches that can cause error codes like 137.

Try a Factory Reset

If error 137 persists after a power cycle, perform a factory reset on your LG TV. This will clear any corrupted settings or software errors that could be causing problems.

Important: A factory reset will erase all custom settings and channels on your TV. Be sure to write down important settings before going through with the reset.

To complete a factory reset:

1. From the TV settings menu, go to the General or Support menu
2. Find and select Factory Reset or Initial Setup option
3. Confirm reset when prompted
4. TV will turn off and back on automatically to complete factory reset process

Once the reset finishes, try using the TV normally to see if error 137 has cleared.

Check for Backlight Issues in LED TVs

If your LG TV uses an LED backlight system, error 137 often indicates a backlight failure. Pull the TV away from the wall and inspect the back panel for any obviously damaged LEDs. Look for cracked or missing light panels.

If the backlights check out, the problem could be:

• Faulty backlight driver board
• Bad power supply unable to provide sufficient voltage
• Short circuit on LED strips

Testing and replacement of these components requires disassembling the TV, which is not safe for those unfamiliar with TV repair. At this point it’s best left to a professional TV repair technician.

Check Panel Connections and Cables

For OLED and other non-LED TV technologies, error code 137 relates to display panel issues.

Carefully inspect the panel cables connecting the display itself to the internal TV boards. Check that:

• Cables are fully inserted at both connection points
• Latch clips or locks are engaged to secure the cable connections
• No pins are damaged or missing
• Cables show no signs of damage or tears

Faulty panel cables are a common source of error 137. Reseating cables or replacing damaged cables often resolves the problem. Just take care when working inside the TV – work slowly and gently to prevent accidental damage.

Replace Main Boards

If you’ve tried all other troubleshooting steps without success, the likely culprit is a faulty main board. Issues with the main logic board or T-Con board can prevent proper communication between TV components.

Replacing a damaged main board requires soldering and component-level electronics expertise. This repair should be left to a professional TV repair technician.

Main board replacement costs can approach the price of a new TV. At that point, replacing the TV may be your most cost-effective option if it is out of warranty.

Preventing LG TV Error Code 137

While it’s difficult to prevent component failures that lead to error 137, here are some tips to help avoid display issues:

• Ensure plenty of ventilation space around the TV to prevent overheating
• Use surge protectors to guard against power spikes
• Keep the TV away from environmental hazards like dust, humidity and cigarette smoke
• Perform occasional soft reboots to clear minor software glitches before they compound

Following the troubleshooting steps outlined in this guide will help you quickly resolve LG TV error code 137. But for complex repairs involving main board replacement, seek out professional TV repair technicians to properly diagnose and service your LG TV.