Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeC1
ApplianceRefrigerator
Quick answer
C1 on an LG refrigerator is a communication error between the dispenser and the display.
Model compatibility: LG reuses codes across series and model years, so C1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Communication error between dispenser and display.
The C1 code on an LG refrigerator indicates a communication error between the dispenser and the display.
What to do
LG lists it among the codes that call for service. No owner steps are given.
Models
LG refrigerators.
Related codes
C0 is a communication error between main board and display.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.
