Error Code E CH

High Side Cycle Leakage — Refrigerant Leak / Sealed System Problem

What This Means

High side refrigerant leak; Restriction in sealed system; Bad compressor; Bad valve

How to Fix

1. 1

   Step 1: Use SVC App Step 1 to check evaporator temperature — determine if sealed system problem or PCB/normal issue.

2. 2

   Step 2: If no SVC App, use temperature gun to check evaporator temperature change.

3. 3

   Step 3: Check PCB voltage output — if PCB is faulty, replace PCB.

4. 4

   Step 4: Measure high and low side pressures and recovery time — if recovery time to equalization pressure exceeds 15 minutes, sealed system is blocked (restriction).

5. 5

   Step 5: If equalization pressure is above 20 psi and recovery is normal, compressor is defective — replace compressor.

6. 6

   Step 6: If equalization pressure is below 20 psi, refrigerant has leaked — locate leak point.

7. 7

   Step 7: Perform bubble or refrigerant leak detector test on high pressure side parts: compressor discharge pipe, drier, condenser. If leak found, replace leaking part and drier.

8. 8

   Step 8: If no leak found on high side, check low pressure side: evaporator, suction pipe. If low side leak found, replace both drier and compressor (moisture entry risk).

9. 9

   Step 9: After sealed system repair, error code clears automatically when freezer temperature reaches 14°F or below.

10. 10

    Step 10: Optionally install UV drier to trace subtle leaks on follow-up visit using UV light and goggles.

This Error Applies To

LG LRFOC2606 Series Refrigerators (2023) (2023–present)