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

1. undefined: Press the Test Switch on the icemaker. If ice does not drop even when Test S/W is pressed, proceed with diagnostics. 2. undefined: Check for loose connections from Main PCB to freezer icemaker. 3. undefined: Measure upper heater (red) resistance: expected 141~163 ohm. If open, replace the icemaker unit. 4. undefined: Measure lower heater (white) resistance: expected 22.3~25.7 ohm. If open, replace the icemaker unit. 5. undefined: Check icemaker motor and gear operation. If motor or gear is mechanically failed, replace the icemaker assembly. 6. undefined: Check Hall IC signal feedback. If no Hall IC signal, replace the icemaker kit. 7. undefined: If no issue with icemaker mechanism, check Main PCB and harness from Main PCB to icemaker. 8. undefined: Replace icemaker kit if electrical or mechanical fault is confirmed.

LG Refrigerators2020–present

Error Code E IU

Freezer Room Icemaker Kit Error — electrical system error (motor, gear, Hall IC, circuit) in the freezer icemaker; or upper/lower heater open circuit

Moderate

Address soon - your appliance may not work properly

Also displayed as: E IU

How to Fix

1
Press the Test Switch on the icemaker. If ice does not drop even when Test S/W is pressed, proceed with diagnostics.
2
Check for loose connections from Main PCB to freezer icemaker.
3
Measure upper heater (red) resistance: expected 141~163 ohm. If open, replace the icemaker unit.
4
Measure lower heater (white) resistance: expected 22.3~25.7 ohm. If open, replace the icemaker unit.
5
Check icemaker motor and gear operation. If motor or gear is mechanically failed, replace the icemaker assembly.
6
Check Hall IC signal feedback. If no Hall IC signal, replace the icemaker kit.
7
If no issue with icemaker mechanism, check Main PCB and harness from Main PCB to icemaker.
8
Replace icemaker kit if electrical or mechanical fault is confirmed.

This Error Applies To

LG LRMVS3006D Series Refrigerators (2020) (2020–present)

Service manual exact match: LRMVC2306SService manual exact match: LRMVC2306DService manual exact match: LRMDS3006DService manual exact match: LRMDS3006SService manual exact match: LRMVS3006DService manual exact match: LRMVS3006SService manual exact match: LRMDC2306SService manual exact match: LRMDC2306D

Related Error Codes

E FS

Freezer Sensor Error — short or open circuit in the freezer thermistor

E rS

Refrigerator Sensor Error — short or open circuit in the fresh food compartment thermistor

F dS

Freezer Defrost Sensor Error — short or open circuit in the freezer defrost sensor

r dS

Refrigerator Defrost Sensor Error — short or open circuit in the refrigerator defrost sensor

E HS

Humidity Sensor Error — short or open circuit in the humidity sensor

E CS

Convertible (Pantry/Full Convert) Sensor Error — short or open circuit in the pantry drawer sensor

E rt

Room Temperature Sensor Error — short or open circuit in the ambient room temperature sensor

E IS

Icing Sensor Error — short or open circuit in the icing compartment (in-door icemaker) sensor

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