How to replace the motor wiring harness on an LG washer

Replacing the motor wiring harness (6877ER1016B) in an LG washer is a straightforward DIY repair that can restore function when the washer stops working. With some basic tools, a few simple steps, and safety precautions, this repair can be completed in under an hour.

The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer’s documentation or contact us with any questions.

What does the motor wiring harness do?

The motor wiring harness is a crucial component in an LG washer. It connects the stator and rotor position sensor to the main control board wiring harness. This allows the control board to communicate with the motor and drive the inner tub.

Over time, the motor harness can become damaged from normal wear and tear. Issues like broken wires, loose connections, and corrosion can prevent proper communication and operation. If the washer stops running and shows an LE error code, the motor wiring harness likely needs to be replaced.

Materials needed

Replacing this part is an affordable and effective solution to restore proper washing function. The repair can be done easily with common tools. Here’s what you’ll need:

• Phillips and flathead screwdrivers
• Side cutters
• Socket wrench with 10mm and 17mm sockets
• Small zip tie
• Plastic mallet
• Replacement motor wiring harness (6877ER1016B)

Safety precautions   

Safety should always be a priority when working on any appliance. Here are a few practical tips to help you stay safe:

• Turn off the power to the appliance by unplugging it or switching off the circuit breaker before starting any maintenance or repairs. This protects you from the risk of electric shock.
• Wear insulated gloves to shield your hands from sharp edges, pinching hazards, or debris.
• Work at a steady pace and take your time to avoid accidents or injuries.
• Make sure your workspace is well-lit so you can clearly see and access the parts you’re working on.
• Keep the area clear of clutter, and ensure children and pets stay out of the workspace.
• Never handle internal parts with wet hands. Check that both your hands and the work area are completely dry.
• Refer to your appliance’s user manual for any specific instructions or safety guidelines related to the part or repair.
• Handle parts gently to avoid damage to the appliance or potential injuries from applying too much force.
• Use safety glasses when dealing with chemicals, dust, or large debris to protect your eyes from harm.
• If the appliance was recently used, give it enough time to cool down before working on any heated components.
• Take photos or notes of wiring connections and terminals before disconnecting anything to make reassembly easier.
• Avoid touching exposed wires or terminals. If you must handle wires, use non-conductive tools or wear insulated gloves to minimize the risk of electrical shock.

Step-by-step instructions

Removing the access panel

1. Using a Phillips screwdriver, unscrew the four Phillips screws securing the panel.
2. Once unscrewed, push up on the panel to release the bottom hooks.
3. Slide the panel downwards to fully detach it. Set it aside for later reinstallation.

Removing the rotor

With the panel removed, you need to detach the rotor next:

1. Use a 17mm socket and mallet to loosen the central bolt holding on the rotor. Unscrew it completely.
2. Gently slide the rotor side to side to detach it from the shaft. Be cautious of pinching fingers on the interior magnets.
3. Set the rotor aside in a safe location to avoid damaging the magnets.

Removing the stator

After the rotor comes off, you can now detach the stator:

1. Use a Phillips screwdriver to remove the screws securing the ground wires and metal bracket.
2. Switch to a 10mm socket and unscrew the six bolts holding in the stator. Support it as you remove the last bolt.
3. Unplug the two wiring harness connectors from the stator. Press the locking tabs and pull firmly but gently.

With the stator fully detached, set it in a secure spot to avoid damage.

Removing the old wiring harness

Now you’re ready to remove the faulty motor wiring harness:

1. Use side cutters to snip off the plastic zip tie bundling the wires together.
2. Pull the harness out from the routing clips to expose the connectors.
3. Unplug the two connectors by pressing their locking tabs and pulling.
4. Remove the plastic retaining clip from the old harness. You’ll reuse it for the new one.

Installing the new wiring harness

Installation is the reverse of removal. To install the new motor wiring harness:

1. Attach the plastic retaining clip removed from the old harness onto the new replacement harness. This secures it in place.
2. Plug in the two connectors at the ends of the new harness. Ensure they click and lock.
3. Bundle up excess wiring and secure with a small zip tie for a tidy install.

Reconnecting the stator

With the new harness installed, reconnect the stator:

1. Plug the two stator connectors into the new harness. Double-check they are fully seated.
2. Carefully position the stator back into place, aligning the mounting holes.
3. Insert two 10mm bolts to hold it, then install the remaining bolts securely.

Reinstalling the rotor and bracket

You’re nearing the end of the repair now. All that’s left is reversing the disassembly steps:

1. Reattach the ground wires and bracket with the Phillips screws. Tighten them down fully.
2. Line up the rotor shaft splines and slide it into place around the stator.
3. Thread in the 17mm bolt and tighten it using the mallet to firmly seat the rotor.

Replacing the access panel

The final step is replacing the rear access panel:

1. Align the top of the panel first and slide it fully into place.
2. Push the bottom in to engage the mounting hooks.
3. Secure with the four Phillips screws using your screwdriver.

Run a test cycle to verify normal operation before using the washer again.

More information

If you need any replacement parts for your appliances, you can enter your model number at AppliancePartsPros.com to locate and order them quickly. Most orders arrive in just two business days, and we have tons of great information in our repair help section and YouTube videos to help you troubleshoot.

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