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

1. undefined: Check connector between Sub PCB and UVC LED for loose or disconnected condition — reconnect or repair. 2. undefined: Check CON2 14th-to-13th-pin voltage: should be 11.4–12.6 V when 'Self Care' is ON; 0–1 V when 'Self Care' is OFF. If incorrect, replace Sub PCB assembly. 3. undefined: Check CON2 12th-to-13th-pin voltage: should NOT be 0 or 5 V when 'Self Care' is ON; 0 V when 'Self Care' is OFF. If stuck, replace UVC LED. 4. undefined: If connector is reconnected and error persists, replace UVC LED assembly.

LG Refrigerators

Error Code E UC

Defect of UVC LED / PSD sensor

Moderate

Address soon - your appliance may not work properly

How to Fix

1
Check connector between Sub PCB and UVC LED for loose or disconnected condition — reconnect or repair.
2
Check CON2 14th-to-13th-pin voltage: should be 11.4–12.6 V when 'Self Care' is ON; 0–1 V when 'Self Care' is OFF. If incorrect, replace Sub PCB assembly.
3
Check CON2 12th-to-13th-pin voltage: should NOT be 0 or 5 V when 'Self Care' is ON; 0 V when 'Self Care' is OFF. If stuck, replace UVC LED.
4
If connector is reconnected and error persists, replace UVC LED assembly.

This Error Applies To

LG LRYKC2606 Series Refrigerators

Service manual exact match: LRYKC2606VService manual exact match: LRYKC2606DService manual exact match: LRYKC2606SService manual exact match: LRYKC2606B