LG Refrigerator Error Code 36E

The 36E code on an LG refrigerator means the control board has detected an open circuit in the ice bucket heater. This heater keeps ice from clumping or freezing solid in the bucket so cubes can be dispensed normally. The fault is most often caused by a loose wiring connector rather than a failed heater. Resistance at connector CN79 should measure 135 ohms, plus or minus 7%, between the orange and brown terminals.

The refrigerator itself will continue to cool food normally while displaying 36E, so food safety is not immediately at risk. However, the ice maker may stop producing or dispensing ice correctly, and continued operation without repair can allow ice to freeze solid in the bucket and damage the auger or dispenser motor. Addressing the fault promptly avoids secondary mechanical damage.

If the fix is simply reseating a loose connector at CN79, there is no parts cost and only a minimal service call fee if a technician is involved. If the ice bucket heater element needs replacement, parts typically range from $30 to $80 depending on the model, plus labor costs of $80 to $150 or more for a professional repair. Wiring harness repairs fall somewhere in between depending on the extent of the damage.

In many cases, yes. The most common cause is a connector that has slipped out of CN79 on the main PCB, which can be fixed by locating and firmly reseating the connector. If reseating the connector does not resolve it, a technician will need to trace the wiring harness for breaks or test the heater element resistance directly. Replacing a broken wire or the heater assembly requires moderate disassembly of the freezer door ice maker area.

A power reset may temporarily clear the 36E code from the display, but the fault will return as soon as the control board checks the ice bucket heater circuit again and detects the open condition. The underlying electrical issue, whether a loose connector, broken wire, or failed heater, must be physically repaired before the code will stay cleared.