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

1. undefined: Check compressor operation and verify it is running. 2. undefined: Check for refrigerant leakage using a portable leakage detector at the high pressure (discharge) side with compressor running. 3. undefined: Inspect condenser and discharge pipe for warmth; if cold, suspect refrigerant loss or compressor failure. 4. undefined: Check for restriction or clogging in capillary tube. 5. undefined: Check 3-way valve for leakage. 6. undefined: If leak found, discharge R600a refrigerant safely outdoors (use refrigerant return bag if indoors), repair leak, replace dryer, use LOKRING connectors (no welding), pull vacuum for minimum 30 minutes, recharge to nameplate specification (64g ±2g). 7. undefined: If compressor is suspected bad, check compressor windings: Power terminal resistance 5.6~9 ohm, Save terminal resistance 9~14 ohm (FLD165NBMA/FLD165NCMA). 8. undefined: Check PCB inverter output at CON201 (POWER, COMMON, SAVE): normal output is 60V or higher. If below 60V, replace Main PCB.

LG Refrigerators

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.

Moderate

Address soon - your appliance may not work properly

Also displayed as: E CH

How to Fix

1
Check compressor operation and verify it is running.
2
Check for refrigerant leakage using a portable leakage detector at the high pressure (discharge) side with compressor running.
3
Inspect condenser and discharge pipe for warmth; if cold, suspect refrigerant loss or compressor failure.
4
Check for restriction or clogging in capillary tube.
5
Check 3-way valve for leakage.
6
If leak found, discharge R600a refrigerant safely outdoors (use refrigerant return bag if indoors), repair leak, replace dryer, use LOKRING connectors (no welding), pull vacuum for minimum 30 minutes, recharge to nameplate specification (64g ±2g).
7
If compressor is suspected bad, check compressor windings: Power terminal resistance 5.6~9 ohm, Save terminal resistance 9~14 ohm (FLD165NBMA/FLD165NCMA).
8
Check PCB inverter output at CON201 (POWER, COMMON, SAVE): normal output is 60V or higher. If below 60V, replace Main PCB.

This Error Applies To

LG LRSOC2306 Series Refrigerators

Service manual exact match: LRSOC2306SService manual exact match: LRSOC2306VService manual exact match: LRSOC2306BService manual exact match: LRSOC2306W

Related Error Codes

E FS

Freezer Sensor Abnormal — Freezer sensor short or open failure

E UC

UV/Nano LED Module Error — Bad UV LED module or poor connection of display and UV module; caused when feedback signals are abnormal (OPTIONAL feature)

F dH

Defrost Heater Abnormal — Defrost heater or thermal fuse short circuit or unplugged connector. Indicated 4 hours after trouble occurs.

E rS

Refrigerator Sensor Abnormal — Refrigerator sensor (upper part of refrigerator compartment) short or open failure

F dS

Defrost Sensor Abnormal — Defrost sensor short or open failure

E FF

Freezer Fan Motor Abnormal — Connection line of the fan motor is faulty, short or open. Display fault when operating fan motor for 65 seconds without feedback.

E rt

Ambient (Room) Temperature Sensor Abnormal — Room temperature sensor short or open

E IK

Ice Maker Unit (Motor) Abnormal — Ice maker step motor fault, Hall IC fault, or Li-wire short; faulty motor driving circuit. Display shows error if ice maker error occurs within 30 minutes after power on.

Need more help with your LG refrigerators?