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

1. undefined: Check if connector between Main PCB and icing sensor is loose or disconnected; if yes, reconnect or repair and retest. 2. undefined: With power OFF, measure resistance at CON3 10th Pin to 9th Pin. If resistance is 0 Ohm (short circuit), replace the icing sensor. 3. undefined: If resistance is open/infinite (OL), go to step 6. 4. undefined: If resistance reads a value, compare against the temperature-resistance table. If outside expected range for current temperature, replace the sensor. 5. undefined: If resistance is correct, the sensor is functioning normally; explain to customer. 6. undefined: Check the sensor wire harness and connector. If all connections are normal, replace the refrigerator main PCB.

LG Refrigerators

Error Code E IS

Defect of ice-room sensor or ice maker sensor

Moderate

Address soon - your appliance may not work properly

Also displayed as: E IS

How to Fix

1
Check if connector between Main PCB and icing sensor is loose or disconnected; if yes, reconnect or repair and retest.
2
With power OFF, measure resistance at CON3 10th Pin to 9th Pin. If resistance is 0 Ohm (short circuit), replace the icing sensor.
3
If resistance is open/infinite (OL), go to step 6.
4
If resistance reads a value, compare against the temperature-resistance table. If outside expected range for current temperature, replace the sensor.
5
If resistance is correct, the sensor is functioning normally; explain to customer.
6
Check the sensor wire harness and connector. If all connections are normal, replace the refrigerator main PCB.

This Error Applies To

LG LF29S8330 Series Refrigerators

Service manual exact match: LF29S8330SService manual exact match: LF29S8330BService manual exact match: LF29S8330WService manual exact match: LF29S8330D