Model reference

LG W3S1*

Washer

1 document25 error codes6 service modes

Available documentation

Service Manual

Laundry Center Service Manual124 pg
Covers this model

MyPros+ Max

Diagnose your LG W3S1*.

Step-by-step diagnostics from the service manual
Test values, resistance specs, and wiring references
Verified part numbers when replacement is needed

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M+

M+ Max·LG Washer

d75 on my LG W3S1*

M+

Ductwork is about 75% blocked

From Service Manual 512193, p.45:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure door lock assembly resistance across PTC terminals. Expected: ~200 ohms cold.

3.Inspect strike and latch alignment. A misaligned strike prevents the switch stack from closing.

Part 6601ER1004C

Door lock assembly

Error codes (25)

CodeMeaning

d75Ductwork is about 75% blocked (displayed for 2 hours only).d80Ductwork is about 80% blocked (displayed for 2 hours only).d90Ductwork is about 90% blocked (displayed for 2 hours only).d95Ductwork is about 90-95% blocked (displayed for 2 hours only).dEDryer door switch is abnormal (only displayed in test mode).E5Dryer DC pump error EEDryer EEPROM operation is abnormal (displayed only in test mode).gASGas supply or service turned off (gas model only).HSHumidity sensor failure.IEWater inlet error LELocked motor error nCNFC module open or shorted (displayed only in test mode).nPNot enough voltage from outlet (lower than 240V)nUNFC module is wrong (displayed only in test mode).OEDrain error OFOverflow error PEPressure sensor error PFPower failure PSDryer power supply wire connection is wrong or loose (electric dryer only)SdSuds error tEHeating error tE1Dryer outlet thermistor open or shorted (displayed in drying cycle or test…tE2Dryer outlet thermistor open or shorted (displayed in drying cycle or test…tE4Steam generator thermistor open or shorted (displayed in drying cycle or test…UEUnbalance error

Service modes (6)

Diagnostic Test Mode (Dryer)1
Installation Test / Duct Check (Dryer)1. Remove drying rack and literature, close door (empty drum). 2. Press and hold Signal and Temp…
Load Test Mode (Washer)1
Smart Diagnosis (Dryer)1
Smart Diagnosis (Washer)1
Water Level Frequency Check (Washer)Press and hold the 'Soil' and 'Delay Wash' buttons simultaneously.

Full entry steps, exit procedures, and test sequences are available in Max.

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