- Appliances
- Refrigerators
Er CL
LG Er CL on a refrigerator: possible low side refrigerant leak
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
On an LG refrigerator, CL points to a possible refrigerant leak on the low pressure side, which a faulty valve can cause. It is not a home repair: request LG service, watch the food temperature and do not open the appliance.
Safety first
Stop and check this first
- Only a certified refrigeration technician opens or recharges the refrigerant circuit. Do not open the rear compartment or try to add gas: there is pressurised refrigerant and mains voltage.
- If the fridge loses cooling, follow the CDC rule for food: never taste it to know if it is safe and, when in doubt, throw it out.
Safe checks you can perform
- Food temperature
- Direct outlet, as LG asks
- Code and model for the service
Leave these tasks to a qualified professional
- Do not attempt this professional task: Leak location by a certified technician
- Do not attempt this professional task: Leak and cooling test
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Leak location by a certified technician
What they doA certified refrigeration technician checks the low side of the sealed circuit with a leak detector and gauges, checks the valve LG lists and cross-checks the sensor readings.
They must show youwhere the leak is and the pressure reading against specification.
In writingthe leak point, the repair and the refrigerant recovered and charged, with amount and type.
Leak and cooling test
What they doAfter the repair, the technician runs a leak test and checks the fridge returns to temperature without CL.
They must show youthe leak test result and the temperature reached.
In writingboth tests and the date.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Food temperature
- Who:
- you.
- How:
- put an appliance thermometer in the fridge and another in the freezer and keep the doors closed while you wait for the technician.
- Result that matters:
- the CDC sets 40 °F (about 4 °C) or below in the fridge and 0 °F (about -18 °C) or below in the freezer.
- If the readings are within range:
- the food is still protected; check the thermometers every few hours.
- If the fridge is above 40 °F:
- with the door closed, the CDC gives the fridge 4 hours at most and a full freezer 48 hours (24 if half full). When in doubt, throw it out without tasting it.
- Evidence to keep:
- a photo of each thermometer with the time and a list of anything you threw away.
Evidence: Keep Food Safe After a Disaster or Emergency
Direct outlet, as LG asks
- Who:
- you.
- How:
- LG says to unplug the refrigerator, wait 60 seconds and plug it back directly into the wall outlet, with no power strip or multi-socket.
- Result that matters:
- ruling out a poor power supply before the visit.
- If it was on a power strip and CL does not return once plugged in directly:
- still tell LG, because CL points to the refrigerant circuit.
- If CL persists:
- request LG service without further resets.
- Evidence to keep:
- note how it was plugged in and whether CL returned.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
Code and model for the service
- Who:
- you.
- How:
- photograph the panel showing CL and the model and serial label.
- Result that matters:
- LG knows it is a possible refrigerant circuit problem.
- If the fridge still cools:
- say so when you request service; it helps plan the visit.
- If it no longer cools:
- ask for an urgent visit and move the food to other cold storage.
- Evidence to keep:
- dated photos of the code and the label.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- LG
- Product type
- Refrigerators
Known code variants
- CL fuga refrigerante LG
- E CL
- ER CL
- Er(E) CL
- Error CL frigorífico LG
- LG fridge CL refrigerant leak
- LG refrigerator CL error
What it means
LG defines CL on its refrigerators as a lower side cycle leak: the control reads that there is a refrigerant leak on the low pressure side of the sealed circuit and lists a faulty valve as a possible origin. The code appears when the temperature and compressor sensors show abnormal values, so it is a deduction by the control from those readings. Whether there is a real leak, and where, only a certified refrigeration technician with instruments can confirm.
Warnings and stop conditions
- Higheditorial warning
Only a certified refrigeration technician opens or recharges the refrigerant circuit. Do not open the rear compartment or try to add gas: there is pressurised refrigerant and mains voltage.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
- Mediumsource verified
If the fridge loses cooling, follow the CDC rule for food: never taste it to know if it is safe and, when in doubt, throw it out.
Evidence: Keep Food Safe After a Disaster or Emergency
Symptoms and causes
Probable causes · in order
- Refrigerant leak on the low pressure sideCommon
It is what LG states for CL. Only a certified refrigeration technician can confirm the leak and locate it with instruments.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
- Faulty valvePossible
LG lists it as a possible origin of the code. It is told apart from a leak elsewhere only in the sealed circuit diagnosis.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
- Abnormal sensor readingsPossible
LG explains that CL appears when the temperature and compressor sensors give abnormal values. The technician checks whether those readings reflect a real leak.
Evidence: [LG Refrigerator] Digital and Analog Error Codes
Virtual technician
Does Er CL still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
[LG Refrigerator] Digital and Analog Error Codes
LG Electronics · 2025 · official_doc
- 2
Keep Food Safe After a Disaster or Emergency
Centers for Disease Control and Prevention (CDC) · 2025 · official_doc
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