LG WM3050CW Rotor Position Sensor Replacement

Written By: Bill Gilbert
  • Comments: 0
LG WM3050CW Rotor Position Sensor Replacement

Difficulty

Moderate

Steps

11

Time Required

30 - 45 minutes

Introduction

Use this guide to replace the rotor position sensor in your LG WM3050CW Washing Machine.

The rotor position sensor is a Hall effect sensor that detects the primary motor's position, direction, and speed.

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    • Before you begin your repair, perform the following:

    • Turn off the main water supply

    • Unplug your washer

    • Disconnect all water connections at the rear of your washer

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    • Use a Phillips driver to remove the four 10.7 mm‑long screws securing the rear panel.

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    • Lift the rear panel upward to release its bottom clips.

    • Pull the rear panel away from the chassis to release the remaining clips.

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    • Remove the rear panel.

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    • Use an impact driver to remove the 17 mm nut securing the rotor.

    • Alternatively, you can use a wrench and a hammer to loosen the nut.

    • To secure the rotor, you can insert a screwdriver, or a similar tool, between the rotor and the stator. Make sure to brace the tool against one of the screw bosses on the stator.

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    • The rotor is magnetically attracted to the stator.

    • Pull the rotor straight off the stator and drive shaft splines to remove it.

    • Wiggle the rotor as you pull to help disconnect it.

    • This may require significant force.

    • During reassembly, watch your fingers when aligning the rotor over the stator, as the rotor gets sucked in easily.

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    • Use a Phillips driver to remove the three 16.6 mm‑long screws securing the motor harness clamps.

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    • Hold the stator up as you unfasten the last few bolts, as it can fall over unexpectedly.

    • Use a 10 mm socket wrench to remove the six 68 mm-long bolts securing the stator.

    • During reassembly, refasten the screws in a "star" pattern.

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    • Don't pull the stator too far away from the device, as it's still connected by wires.

    • Pull the stator off of the drum and flip it so its rear is facing upward.

    • Note the position of the stator before continuing, as you will need it face the proper direction during reassembly.

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    • Pull the rotor position sensor harness connector straight out of its socket to disconnect it.

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    • Use your fingers to unclip the rotor position sensor from the stator.

    • Pull the sensor away from the stator to completely unclip it.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

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Author

Bill Gilbert

Member since: 30/06/22

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