Error Code IE

Inlet Error — machine does not reach normal water level within fill timeout

What This Means

Water supply tap is closed; Wiring connection to inlet valve or hall sensor disconnected; Inlet hose kinked; Water pressure too low (below 10 psi) or too high (above 120 psi); Inlet valve filter clogged with dirty water; Inlet valve faulty (rated resistance 23-27 ohm); Air breaker impeller stuck; Hall sensor faulty (rated resistance 9 kΩ ±5%); Controller (main PCB) damaged

How to Fix

1. 1

   Check if water supply tap is open; if closed, open it

2. 2

   Enter LQC mode: press Power + Start, then Start 5 times to check supply sound; press Power to exit

3. 3

   If water IS supplied but frequency does not increase: check connector NA8 and WHA4 connections to main PCB; if disconnected, reconnect

4. 4

   Check if impeller of air breaker is spinning properly; if not, replace the air breaker

5. 5

   Measure hall sensor resistance — should be 9 kΩ ±5%; if out of range, replace hall sensor

6. 6

   Measure voltage between WH4 pin4 and NA8 pin1 — should be 5V DC ±15%; if out of range, replace main PCB assembly

7. 7

   If water is NOT supplied: confirm tap is open

8. 8

   Check connector WH6 to main PCB; if disconnected, reconnect

9. 9

   Inspect water supply hose for kinks; straighten if kinked

10. 10

    Verify water pressure is 20-80 psi (140-550 kPa); if out of range, install pressure pump or call plumber

11. 11

    Close water tap, unscrew inlet hose from valve side, clean filter of inlet valve

12. 12

    Measure voltage between WH6 pin5 and pin6 — should be 8V DC ±15%; if out of range, replace main PCB

13. 13

    If inlet valve resistance is out of 23-27 ohm range, replace inlet valve

14. 14

    If all checks pass, replace hall sensor or main PCB as needed

This Error Applies To

LG LDT7808ST Series Dishwashers (2017) (2017–present)