Model reference
LG WM3988HMA
Washer
3 documents12 error codes4 service modes
Available documentation
Service Manual
- Universe Washing Machine210 pg
- Washing Machine Service Manual67 pg
- Washing Machine Service Manual67 pg
MyPros+ Max
Diagnose your LG WM3988HMA.
- 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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Service modes (4)
- Load Test Mode["Ensure washer is empty and controls are in the off state.","Press the SPIN SPEED and SOIL LEVEL…
- Test Mode["Washer must be empty and off.","Press and hold SPIN SPEED and SOIL LEVEL buttons…
- Test Mode Sensor Display Shortcuts["Enter Test Mode as described above.","PREWASH + CUSTOM
- Water Level Frequency Check["Press the WASH/RINSE and SOIL LEVEL buttons simultaneously."]
Full entry steps, exit procedures, and test sequences are available in Max.
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