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Error code reference

LG Refrigerator Error Code CH E

High side cycle leakage detected by high side refrigerant leak, restriction, bad compressor, or bad valve causing no cooling.

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What the CH E error code actually means

The CH E code means your LG refrigerator has detected a problem with its cooling system, specifically in the high-pressure side of the refrigerant circuit. This could be a refrigerant leak, a blockage, a worn-out compressor, or a faulty valve. The refrigerator is not able to cool properly until this issue is diagnosed and repaired.

Diagnostic procedure

The full CH E procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Use SVC App Step 1 to determine if it is compressor or sealed system problem; if no SVC App, check temperature using temperature gun, then check voltage for PCB problem.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of CH E

Ranked by how often they cause this code
  1. 1Refrigerant leak on the high side
  2. 2Failing or failed compressor
  3. 3Restriction in the sealed system
  4. 4Defective valve
  5. 5PCB or control board fault

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Questions people ask about CH E

What does CH E mean on a LG refrigerator?
CH E on an LG refrigerator means the control system has detected a high-side refrigerant circuit problem. This can be caused by a refrigerant leak, a restriction in the sealed system, a bad compressor, or a defective valve. The result in all cases is reduced or complete loss of cooling. This code requires professional diagnosis of the sealed system.
Will resetting my LG refrigerator clear the CH E error code?
Resetting the refrigerator by unplugging it for a few minutes may temporarily clear the CH E code, but the error will return if the underlying sealed system problem has not been corrected. A reset does not fix a refrigerant leak, restriction, bad compressor, or defective valve. The code should be treated as a persistent fault requiring professional service.
How much does it cost to repair a CH E error on an LG refrigerator?
Repair costs for CH E depend heavily on the specific cause. A PCB replacement may fall in the range of $150 to $400 including labor, while sealed system repairs such as refrigerant recharge or compressor replacement can range from $300 to $700 or more depending on parts and labor rates in your area. A technician will need to perform diagnostics first to identify the exact fault before an accurate estimate can be provided.
Can I fix a CH E error on my LG refrigerator myself?
Most of the root causes behind CH E involve the sealed refrigerant system, which requires EPA certification to legally handle refrigerants and specialized tools to diagnose and repair. Homeowners can check for obvious issues like ensuring the refrigerator has power and adequate ventilation, but repairs to the compressor, valves, or refrigerant circuit must be performed by a qualified technician.
Is it safe to keep using my LG refrigerator when it shows CH E?
A refrigerator displaying CH E is not cooling properly, which means food safety is a concern. Perishable items stored in a unit that has lost cooling capacity are at risk of spoiling. It is best to transfer food to another refrigerator or cooler and arrange for service as soon as possible rather than continuing to run the appliance in this condition.

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