Name: LG WM3670HRA
Brand: LG

Question 1

What does error code dE1 mean on LG WM3670HRA?

Accepted Answer

Door Open Error (variant 1). Cause: Door not all the way closed; Loose electrical connections at door switch and PWB assembly; Door switch assembly out of order; Connector to door switch or main PWB disconnected; Spring of latch hook not actuating; PCB assembly faulty.

Question 2

What does error code dE2 mean on LG WM3670HRA?

Accepted Answer

Door Open Error (variant 2). Cause: Door not all the way closed; Loose electrical connections at door switch and PWB assembly; Door switch assembly out of order.

Question 3

What does error code EE mean on LG WM3670HRA?

Accepted Answer

EEPROM Error. Cause: EEPROM is out of order.

Question 4

What does error code FE mean on LG WM3670HRA?

Accepted Answer

Overflow Error. Cause: Water is overflowing (water level frequency over 21.3 kHz); Air chamber or tube clogged; Inlet valve open continuously when power not applied (faulty inlet valve); Main PWB faulty causing inlet valve to stay open.

Question 5

What does error code IE mean on LG WM3670HRA?

Accepted Answer

Water Inlet Error. Cause: 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 clogged; Inlet valve filter clogged with foreign material; Inlet valve connectors broken or loose; Inlet valve resistance out of range (should be 0.8-1.2 kΩ); Connector disconnected from MAIN PWB assembly (NA2, NA4, BL3); Electrical connection faulty (refer to wiring diagram); Pressure switch defective.

Question 6

What does error code LE mean on LG WM3670HRA?

Accepted Answer

Locked Motor Error. Cause: Motor harness connector (3-pin male white) not connected to stator assembly connector (3-pin female white); Poor or unstable electrical contact between motor harness connectors and 4-pin female white connector on MAIN PWB ASSEMBLY; Motor harness between stator assembly and MAIN PWB ASSEMBLY is open-circuited; Rotor magnet cracked; Stator winding resistance out of range (should be 5-15 Ω between phases U-V, V-W, W-V); IPM in controller faulty.

Question 7

What does error code nC mean on LG WM3670HRA?

Accepted Answer

NFC Module Error. Cause: NFC harness between NFC PCB assembly and DISPLAY PCB assembly is cut or not connected (open-circuited); NFC PCB assembly is bad or out of order (short-circuited); NFC EEPROM is out of order.

Question 8

What does error code nU mean on LG WM3670HRA?

Accepted Answer

NFC Version Error. Cause: NFC version is not matched.

Question 9

What does error code OE mean on LG WM3670HRA?

Accepted Answer

Drain Error. Cause: Not fully drained within 10 minutes; Connectors at main PCB or drain pump loose or disconnected; Air dome or pressure hose clogged; Drain pump motor resistance out of range (should be 1-20 Ω); Main PWB voltage to drain pump not 120 VAC ±5%; Kinked or clogged drain hose; Frozen drain hose; Foreign objects clogging drain pump filter; Foreign objects caught in pump impeller.

Question 10

What does error code PE mean on LG WM3670HRA?

Accepted Answer

Pressure Sensor Error. Cause: Pressure sensor assembly out of order; Water level frequency consistently below 10 kHz or over 30 kHz; Connector to pressure sensor disconnected or disassembled; Pressure sensor resistance out of range (pin 1 to pin 3: 21-23 Ω ±10%); Air chamber and tube clogged.

WM3670HRA

Error Codes

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Code	Meaning	Severity
dE1	Door Open Error (variant 1)	Moderate
dE2	Door Open Error (variant 2)	Moderate
EE	EEPROM Error	Moderate
FE	Overflow Error	Moderate
IE	Water Inlet Error	Moderate
LE	Locked Motor Error	Moderate
nC	NFC Module Error	Moderate
nU	NFC Version Error	Moderate