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

1. undefined: 1. Use LG SVC App Step 1 to determine if issue is compressor or sealed system. If no SVC App, use temperature gun to measure condenser outlet temperature. 2. undefined: 2. Check voltage at PCB to rule out PCB problem. 3. undefined: 3. Check high/low side pressures and equalization return time using SVC App Step 2 or manifold gauge set. 4. undefined: 4. If equalization time exceeds 15 minutes, sealed system is blocked. 5. undefined: 5. If equalization pressure is below 40 psi, likely a refrigerant leak. 6. undefined: 6. Charge with N2 or R134a (per local code) to locate leak. 7. undefined: 7. Check high-pressure side parts (condenser, drier) for leaks using leak detector. 8. undefined: 8. If no high-side leak found, check low-pressure side parts (evaporator, suction pipe). 9. undefined: 9. Replace all leaking parts along with the drier. 10. undefined: 10. If compressor is determined faulty, replace compressor and drier. 11. undefined: 11. After sealed system repair, error clears automatically when freezer reaches 14°F. 12. undefined: 12. Use UV drier for leak verification on next visit. 13. undefined: 13. If system is normal but error persists, press F key + R key 3 times with door open to force-clear error code.

LG Refrigerators

Error Code CH E

High-Side Cycle Leakage / Sealed System Problem

Moderate

Address soon - your appliance may not work properly

How to Fix

1
1. Use LG SVC App Step 1 to determine if issue is compressor or sealed system. If no SVC App, use temperature gun to measure condenser outlet temperature.
2
2. Check voltage at PCB to rule out PCB problem.
3
3. Check high/low side pressures and equalization return time using SVC App Step 2 or manifold gauge set.
4
4. If equalization time exceeds 15 minutes, sealed system is blocked.
5
5. If equalization pressure is below 40 psi, likely a refrigerant leak.
6
6. Charge with N2 or R134a (per local code) to locate leak.
7
7. Check high-pressure side parts (condenser, drier) for leaks using leak detector.
8
8. If no high-side leak found, check low-pressure side parts (evaporator, suction pipe).
9
9. Replace all leaking parts along with the drier.
10
10. If compressor is determined faulty, replace compressor and drier.
11
11. After sealed system repair, error clears automatically when freezer reaches 14°F.
12
12. Use UV drier for leak verification on next visit.
13
13. If system is normal but error persists, press F key + R key 3 times with door open to force-clear error code.