Washer Repair LG WM3400CW

Washer repair for LG WM3400CW - February 12 by Morgan Appliance Repair in Chicago

Description of objects for repairing

Object:hwasher LG, model WM3400CW. Customer claim: the washing machine makes a lot of noise when it is switched on. Issue: pulley must be replaced. Equipment that were used in repairing works: a screwdriver with attachments, a new water valve for this dishwasher model and technical documentation from LG for this type of device.
In this case study, we describe an LG washing machine breakdown related to the wear of the drum, also known as the pulley. If you hear a strong sound when the washing machine is turned on, it may indicate this problem. In this case, our technician promptly diagnosed it, making sure it was a drum related problem. We ordered a new drum and had it replaced. Everything was done promptly and the customer was satisfied. You can read more about our washing machine repair services on this page: Washer Repair in Chicago.

Repairing procedure

To replace the rotating wheel (also known as the drum or pulley) on an LG washing machine model WM3400CW, you’ll need to follow a series of steps. These instructions are general and apply to many front-load LG washing machines. However, please consult your washing machine’s user manual for any model-specific instructions or safety guidelines. If you’re not comfortable performing these steps, it’s best to contact a professional.

Tools Needed:

  • Screwdriver (Phillips and flat-head)
  • Socket wrench
  • Pliers
  • Towel or small blanket (for laying the machine on its side)
  • New rotating wheel (pulley)

Step-by-Step Guide:

  • Unplug the Washing Machine: Ensure your safety by disconnecting the washing machine from the power supply.
  • Access the Rear Panel: Move the washing machine to gain access to its back. You might need to disconnect water supply lines; if so, ensure you have towels ready for any water spillage.
  • Remove the Rear Panel: Use a screwdriver to remove the screws holding the back panel in place. Set the panel aside.
  • Locate the Rotating Wheel: The rotating wheel is attached to the back of the drum. Identify the bolt securing the wheel.
  • Remove the Old Wheel: Use a socket wrench to loosen and remove the bolt holding the wheel in place. You may need to hold the drum from the inside of the washing machine to prevent it from turning. Once the bolt is removed, take off the old wheel.
  • Install the New Wheel: Place the new wheel on the shaft where the old one was. Ensure it’s aligned correctly before tightening the bolt securely with the socket wrench. Again, you may need to hold the drum from inside to keep it from turning while you tighten the bolt.
  • Reattach the Rear Panel: Once the new wheel is securely in place, reattach the rear panel of the washing machine with the screws you removed earlier.
  • Reconnect the Washing Machine: Move the washing machine back to its original position. If you disconnected the water supply, reconnect it. Plug the washing machine back into the power supply.
  • Test the Machine: Run a short cycle without laundry to ensure everything is working correctly. Listen for any unusual noises that might indicate the wheel is not installed properly.


  • Always refer to the user manual for any specific instructions related to your model.
  • Keep track of all screws and parts you remove so nothing gets lost.
  • If you encounter any difficulties or if the washing machine does not operate correctly after the replacement, contact a professional repair service or the LG support center for assistance.
Replacing the rotating wheel can extend the life of your washing machine and improve its performance. However, if you’re unsure about performing this task, seeking professional help is the best course of action.
Here is a small photo report of the work carried out:

Morgan LLC Services for Chicago Residents

Morgan Appliance Repair is a service known for its exceptional proficiency in repairing household appliances. We offer expert solutions to ensure the seamless operation of your kitchen and bathroom devices. With a proven track record of successfully working with a variety of brands, we provide certified repairs. Schedule your repair today for reliable and prompt service: appliance repair Chicago. Easily locate us on Google Maps at: appliance repair Chicago. Our services extend to Chicago, IL, and all surrounding areas within a 50-mile radius of the city.
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