LG Front Load Washing Machine Main Board Replacement

Written By: Bill Gilbert
  • Comments: 1
LG Front Load Washing Machine Main Board Replacement

Difficulty

Moderate

Steps

14

Time Required

25 - 45 minutes

Introduction

Use this guide to replace the main board in your LG front load washing machine.

This is the main circuit board for the washer. It doesn't contain any buttons or dials—if your washer buttons or dials are broken, you'll need to replace the control panel instead.

This guide will work for most LG front load washing machines. This guide is written with a model WM3050CW washer. If you have a different model, you may encounter some minor disassembly differences, but the overall repair process will be the same.

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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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    • Remove the screw(s) securing the top panel brackets to the back panel.

    • You don't need to remove the screws securing the brackets to the top panel.

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    • Slide the top panel towards the rear of the device to disconnect its clips.

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    • Tilt the top panel upward to completely disconnect it from the chassis.

    • Remove the top panel.

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    • Depending on your device, your pressure sensor might have a wire harness. If so, disconnect each wire on the harness.

    • Disconnect the connector from the pressure sensor.

    • Always grip cables by their connectors and not the wires themselves.

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    • Disconnect the hose from the pressure sensor.

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    • Remove the screw(s) securing the pressure sensor.

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    • Unclip the pressure sensor from the chassis or other components.

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    • Lift the pressure sensor away chassis and remove it.

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    • Disconnect any cables or fasteners secured to the control panel cover.

    • Repeat this procedure for any bundled cables that keep the cover from opening.

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    • Use a flathead screwdriver or a prying tool, to unclip the main board cover.

    • Remove the main board cover.

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    • Remove the screw(s) securing the main board to the back side of the washer.

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    • Slide the main board out of its slot in the chassis.

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    • Label each connector and its spot on the main board. During reassembly, reattach each connector to its proper spot.

    • Lift the main board out of the chassis to access each of the connectors.

    • Disconnect each connector from the main board.

    • Remove the main board.

Conclusion

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

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

Repair didn’t go as planned? Ask our Answers community for help.

Author

Bill Gilbert

Member since: 30/06/22

35117 Reputation

One comment

Thank you for the instructions. Can power to the front control panel be tested without connecting the pressure sensor and water lines.

albert -