How do I fix error code IS E on a LG refrigerators?

1. undefined: Check for loose connection in CON8 (Drawer Model) or CON4 (Swing Model). 2. undefined: Unplug the icing sensor connector. 3. undefined: Measure resistance between Red and Orange wires. 4. undefined: If 0 ohm (short): Replace the icing sensor. 5. undefined: If open (infinite/OL): Replace the refrigerator control board (Main PCB). 6. undefined: If within range, verify against Temperature Table-1 (same as freezer sensor): -22F(-30C)=40.5-38.5kΩ ... 32F(0C)=8-7.5kΩ. 7. undefined: Note: IS E displayed without user input indicates the icing sensor has failed independently.

LG Refrigerators

Error Code IS E

Icing Sensor Error

Moderate

Address soon - your appliance may not work properly

Also displayed as: IS E

How to Fix

1
Check for loose connection in CON8 (Drawer Model) or CON4 (Swing Model).
2
Unplug the icing sensor connector.
3
Measure resistance between Red and Orange wires.
4
If 0 ohm (short): Replace the icing sensor.
5
If open (infinite/OL): Replace the refrigerator control board (Main PCB).
6
If within range, verify against Temperature Table-1 (same as freezer sensor): -22F(-30C)=40.5-38.5kΩ ... 32F(0C)=8-7.5kΩ.
7
Note: IS E displayed without user input indicates the icing sensor has failed independently.

This Error Applies To

LG LFCS22520B Series Refrigerators

Service manual exact match: LFCS22520BService manual exact match: LFCS22520SService manual exact match: LFCS22520WService manual exact match: LFNS22520S