Electric drive motor removed from a washing machine
Generic photo: Poo (Wikimedia Commons user) · Public Domain

Rotor position sensor (direct-drive motors)

On direct-drive motors the rotor position sensor sits on the stator and tells the inverter where the rotor magnets are. A bad sensor, cracked connector or water ingress gives motor errors even with good windings.

Single source ~45 min moderateBrands: LG, Samsung, All

Before you start

  • Unplug the washer
  • Rotor magnets are strong; keep fingers clear when removing or refitting the rotor

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Rotor position sensor (direct-drive motors) · OnCall Tech