Front Load Washer
Noise / Vibration
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**NOTICE**
Wiring Colors, Connectors, and Pins will vary by model/product code. Always be sure to download and use the service manual for your specific model.
For Test Mode procedures use this link and input your specific model: https://lgtestmodes.com/
Make sure the washer is leveled and installed properly & check for foreign items.
FRONT LOAD WASHER NOISES
Make sure the washer is leveled and installed properly.
Check the inside of the drum for any loose objects that made their way into the wash. Keys coins, Etc.
If the noise is during the drain, check the drain pump and drain pump filter.
If the noise is during the spin, check the drain, and water hoses. Zip tie or secure another way, any loose items that may be hitting the unit.
It is normal to hear a noise when the lid is locked or unlocked. Do not try to force the lid open if it is locked.
If the wash motion switches from wash plate rotation to tub rotation, the wash plate moves to the left and right to align the motor gears.
When this happens, you may hear a clicking noise.
Close zippers, buttons, and drawstrings, and wash garments inside out to help prevent tangling and protect other items.
Check pockets while loading the laundry to remove coins, keys, lighters, or other objects that could damage the washer or your clothing. Zippers, buttons, or other items may hit the wall of the tub and cause a rattling or tinkling sound.
You may also hear the motor during the wash cycle. This is normal.
If foreign objects become stuck between the wash plate and the tub, or if a wire is caught in the wall of the tub, you may hear a screeching or rubbing noise when the tub is spinning. Stop the cycle and remove the laundry. Check the tub for coins, wires, or other foreign objects.
If foreign objects are found, remove them from the tub.
If a grinding noise is quite loud and manually rotating the empty drum tells you something appears to be wrong with the motor, it could be a worn out bearing, drive pulley or motor coupling.
A tub ball bearing assembly is generally filled with grease. Over time, water seeping through will cause the ball bearings to rub metal on metal and rapidly wear itself out to the point of generating a loud high-pitched screeching grinding noise
Check for shipping bolts and loose balance weight and loose main board cover.
Make sure not to overload the unit as this can cause knocking and eventual damage to the washer.
Check the balance weights, they must be tight and attached properly or they can make a knocking sound. If they have become loose and possibly have come off, it’s not recommended to reuse the tub, or balance weights as the threads in the plastic drum assembly will be destroyed.
There’s a Service Bulletin for some models for the Balance weights falling off and proper repair procedure. DFZ201800040
When the balance weights are loose or missing, it will cause the unit to run unbalanced, and vibrate and creating noises.
Step 1) Remove the origin part
Step 2) Assemble the new part fully
Step 3) Tighten bolts follow the order (Refer to the below picture)
Step 4) After changing the part, check the ‘A’ dimension every points (4 points)
Refer to below picture.
- If the ‘A’ is bigger than 0.08inch
(2mm), it is OK.
- If the ‘A’ is smaller than 0.08inch
(2mm), it is Not Good.
You must tighten the bolt more.
Check the Main PCB board mount. Service Bulletin for it coming loose on certain models.
(WM3400CW / F3U8CNU3W); (WM3460CV / F3L2CNU9T); (WM3460CW / F3L2CNU3W); (WM3500CW / F3L2CNU4W); (WM3600HVA / F3P2CYUAT); (WM3600HWA / F3P2CYUAW); (WM3700HWA / F3L2CYU5W); (WM3700HVA / F3L2CYU5T); (WM3900HWA / F3L2CYU2W); (WM3900HBA / F3L2CYU2W); (WM4000HBA / F3P2CYUBE); (WM4000HWA / F3P2CYUBW);
The Main PCB board cover can become loose and can hang and touch the outer tub and make a knocking banging noise. To repair simply reassemble and use electrical tape to secure the PCB Cover.
Check for water hammering noises during filling.
When water is supplied from the water supply valve of the washing machine, the valve operates and creates “woong~” operating noises.
When water is supplied, the valve is closed, creating a “tak” noise.
If the water supply filter is clogged and water passes through a narrow space or the water pressure is high, a “gurgling” noise may be created. Also, during final rinsing, water is supplied to the fabric softener dispenser which has a smaller area than the detergent dispenser, so the sound of water supply may be different from the normal water supply sound.
A “woong~” noise heard from the water supply valve of the washing machine during water supply is a natural sound of valve operation.
It is created in the process when the water supply valve is opened by electricity and water is supplied.
If the water pressure is low, the amount of water supplied will be reduced so that the noise may be louder.
A “tak” noise is heard during water supply. During the water supply valve operation, a “tak” noise may be heard as the valve closes.
A “gurgling” noise is heard during water supply. When the water pressure is high or the water supply filter is clogged, a “gurgling” noise may be heard.
Adjust the faucet to adjust the level of the water supply.
If there is a foreign object in the water supply filter, remove it.
How to clean the water supply filter
- Turn off the faucet and disconnect the power cord.
Separate the water supply hose connected to the washing machine by turning it counterclockwise, and separate the filter located inside the water supply hose by hand or using a tool.
Clean the water supply filter with a cleaning brush (toothbrush) under running water to remove water stains or foreign objects such as rust.
Connect cold water and hot water to the blue filter and the orange filter respectively according to the positions indicated on the back of the machine. - Connect cold water and hot water to the blue filter and the orange filter respectively according to the positions indicated on the back of the machine.
(Be sure to reassemble the filter correctly. Failure to do so may cause product failure.) - Connect the water supply hoses to the cold and hot water correctly and turn on the faucets.
The sound of water is different during rinsing.
During final rinsing, water is supplied to the fabric softener dispenser in order to add fabric softener to the tub.
At this time, water is supplied to the fabric softener dispenser which has a smaller area than the detergent dispenser, so the sound of water created may be different from the normal sound of water being supplied.This guide was created for all models, so the images or content may be different from your product.
The homeowner’s issue may be solved by installing a water hammering device.
Water hammer is usually caused in high pressure (e.g. mains pressure) water systems either when a tap is turned off quickly, or by fast-acting solenoid valves, which suddenly stop the water moving through the pipes and sets up a shock wave through the water, causing the pipes to vibrate and ‘shudder
