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error LG
Error Code Red LED
Error condition indicated by red LED light on SignaLight display.
? What Causes This
An error code has been triggered; check the error code display for specific problem.
✓ How to Fix It
Refer to the Error Messages section of the manual to identify and resolve the specific error code.
Source: page 8 of the official manual
From the manual
This error code appears in:
LG Drain Series Dishwasher