Error Code E CH

High Side Cycle Leakage — Detected by high side refrigerant leak, restriction, bad compressor, bad valve, etc. Caused when temperature and compressor feedback signals are abnormal.

Also displayed as: E CH

How to Fix

1. 1

   Step 1: Check compressor operation. If compressor is running but not cooling, suspect refrigerant leak.

2. 2

   Step 2: Check high pressure side (discharge/condenser) for leaks using electronic leak detector or soapy water while compressor is running.

3. 3

   Step 3: Check condenser and hot-line pipe for warmth — if cold, suspect refrigerant loss or restriction.

4. 4

   Step 4: If refrigerant leak confirmed, recover all R600a refrigerant outdoors, repair leak, replace dryer, evacuate for minimum 30 minutes, and recharge with exactly 64g R600a (+/-1g).

5. 5

   Step 5: If no refrigerant leak found, check for capillary tube restriction or bad water/pilot valve.

6. 6

   Step 6: If compressor is suspect, check compressor resistance (Power: 5.6~9 ohm, Save: 9~14 ohm for FLD165NBMA/NCMA).

7. 7

   Step 7: If restriction or compressor is confirmed bad, replace the failed component.

This Error Applies To

LG LHSXS2706 Series Refrigerators