Error Code IE

Water Inlet Error

What This Means

Correct water level (24.6 kHz) not reached within 8 minutes after water is supplied; Preset water level not reached within 20 minutes; Air chamber or tube has holes or clogs; Filter inlet valve clogged with foreign material; Drain hose not installed between minimum 24" and maximum 96" above bottom of washer; Inlet valve connectors broken or loose; Resistance of inlet valve assembly out of range (not 0.8-1.2 kΩ); Inlet valve connector CN551 disconnected from Main PWB; Incorrect electrical connection / damaged main harness; Pressure switch faulty

How to Fix

1. 1

   Confirm IE is displayed on panel

2. 2

   Press Cold Wash and Temp buttons simultaneously — check if water level frequency is below 24.6 kHz

3. 3

   If yes: Check air chamber and tube for holes or clogs

4. 4

   If no: Check if filter inlet valve is clogged — clean or replace filter

5. 5

   Check drain hose height (must be 24" to 96" above washer base) — adjust if incorrect

6. 6

   Check inlet valve connectors for damage or looseness — reconnect or repair

7. 7

   Measure resistance of each inlet valve terminal: should be 0.8–1.2 kΩ — if out of range replace inlet valve assembly

8. 8

   Check inlet valve connector voltage: should be 12.5V–13.6V DC with power on — if correct replace inlet valve assembly

9. 9

   Check CN551 connector at Main PWB — reconnect or repair if disconnected

10. 10

    Verify electrical connection per wiring diagram — replace main harness if incorrect

11. 11

    After reconnecting, check water level frequency again; if still below 24.6 kHz check pressure switch

12. 12

    If all checks pass: replace Main PWB assembly

13. 13

    Installation safety check: verify no water tap leakage, no freeze, no hose entanglement, no water shortage, no hose shrinkage from hot/cold misuse

This Error Applies To

LG WM4000H Series Washers (2023) (2023–present)