How do I fix error code E5 on my LG DLEX3900W?

1. undefined: Activate diagnostic test mode. 2. undefined: Press START/PAUSE button 4 times. 3. undefined: Check AD value displayed - if lower than 10, E5 error will display. 4. undefined: Check connection between harness wire and connector. 5. undefined: If AD value is still below 10, replace the DC pump. 6. undefined: Note: Let dryer start each test step before continuing to next; rapid pressing can damage main board.

LG DLEX3900WDryer

Error Code E5

Water supply pump failure - pump valve AD value below 10 in test mode

Moderate

Address soon - your appliance may not work properly

Also displayed as: E5

How to Fix

1
Activate diagnostic test mode.
2
Press START/PAUSE button 4 times.
3
Check AD value displayed - if lower than 10, E5 error will display.
4
Check connection between harness wire and connector.
5
If AD value is still below 10, replace the DC pump.
6
Note: Let dryer start each test step before continuing to next; rapid pressing can damage main board.

Other Error Codes for DLEX3900W

tE4

Steam generator thermistor open or shorted

tE2

Thermistor of blower housing - outlet thermistor open or shorted

Power supply wire connection wrong or loose (Black-White-Red wires). Electric dryer only.

tE1

Thermistor of blower housing - outlet thermistor open or shorted

d90

Ductwork approximately 90% blocked

Door switch abnormal

EE PROM operation abnormal

InS

Installation test mode active (duct/exhaust check)

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