The appearance of strong vibration when spinning an LG washing machine is a signal that cannot be ignored. Excessive shaking not only creates discomfort due to noise, but can also lead to serious damage to equipment or even interior items. Owners often notice that the device begins to “jump” on the floor or make a hum reminiscent of an airplane taking off, especially at high speeds.
Modern LG models, including direct drive series Direct Drive, are designed to minimize vibration, but wear and tear or installation errors can upset the balance. Understanding the nature of vibration allows you to quickly diagnose the problem and avoid costly repairs at a service center. In most cases, the cause can be eliminated yourself, having basic knowledge about the structure of the unit.
In this article we will examine in detail the mechanical and operational factors that affect the stability of the washing machine. You will learn how to check shock absorbers, assess the condition of the bearings and correctly level the equipment. Ignoring the first symptoms often leads to tank destruction or engine damage, so timely response is critical to the longevity of your device.
Primary diagnosis and external factors
Before disassembling the equipment, it is necessary to eliminate basic installation errors. Vibration often occurs because the machine is standing on an uneven surface or has not been removed transport bolts. These fasteners secure the tank during transport, and if left, the drum will not be able to move freely, which causes severe shaking when first started.
⚠️ Attention: Operating the washing machine with the transport bolts screwed in is guaranteed to lead to the destruction of the tank or breakage of the drive belt within several wash cycles.
Check the stability of the legs. Even a minimal misalignment leads to the fact that the centrifugal force during spinning shifts the center of gravity, and the machine begins to “walk” around the bathroom. Use a building level to check for levelness. Also pay attention to the type of flooring: slippery tiles or soft linoleum can increase the sliding effect, even if the equipment itself is working properly.
It is also important to consider the nature of the load of laundry. If you are washing one heavy item, such as a wet blanket or bath mat, balancing the laundry in the drum is not possible. System Balance Control in LG cars, it will try to distribute the load, but if there is a strong imbalance, the vibration will remain. In such cases, it is recommended to add several small items to distribute the mass evenly.
Checking transit bolts and stability
One of the most common causes of extreme vibration in new or recently relocated machines is user forgetfulness about the transit bolts. There are usually four of them, and they are located on the back of the device. These bolts securely secure the tank to the body, preventing damage from vibration during delivery.
To check, you will need the wrench that comes with the kit. If, when you remove the bolts, you feel that they are holding the metal structure and not just plugs, then the machine is still secured for transport. After removing them, be sure to save these parts, as they may be needed when transporting the equipment again.
☑️ Checking machine installation
If the bolts are removed, check the leveling feet. They should be pressed tightly to the floor. Locknuts The threaded legs must be screwed tightly upward towards the body of the machine to secure the position. A loose locknut will eventually cause the leg to spontaneously unscrew or twist, violating the horizontal position.
Damage system malfunctions
Shock absorbers are a key element in dampening vibrations in a washing machine. They connect the bottom of the tank to the base of the housing and work on the principle of a damper. Over time, especially after 5-7 years of active use, the lubricant inside them dries out and the seals wear out, which leads to a loss of resistance.
To check the condition of the shock absorbers, open the top cover of the machine (after unplugging it) and press the tank from top to bottom. If the tank easily moves up and down and does not return smoothly to its original position, or, on the contrary, springs like a ball, the shock absorbers require replacement. A working damper should provide noticeable resistance.
A situation often occurs when one shock absorber is working, and the second is completely “dead”. This creates a misalignment during the spin cycle, which causes the drum to beat. It is recommended to change them in pairs, even if the second one seems to be working, since they have the same resource. Use of original spare parts LG or high-quality analogues guarantees the restoration of factory vibration damping characteristics.
Shock absorber life
The average service life of shock absorbers in washing machines is from 1500 to 2500 wash cycles. With daily use this is about 5-7 years. Hard water and frequent overloads shorten this period.
Wear of the bearing unit and oil seal
If the vibration is accompanied by a characteristic hum, similar to the sound of a passing train or jet plane, which intensifies as the drum speed increases, the problem lies in the bearings. Bearing unit ensures smooth rotation of the drum shaft, and its destruction is one of the most serious malfunctions.
The cause of failure often lies in the depressurization of the oil seal (cuff). Through a damaged seal, water and detergent enter the bearing, washing away the lubricant and causing corrosion. As a result, the ball bearings begin to play, the shaft warps, and during spinning a strong vibration occurs, which is transmitted to the entire body.
You can diagnose this problem manually: try shaking the drum from the inside. If there is noticeable play between the tank and the drum or a crunching sound is heard when turning, replacing the bearings is inevitable. For direct drive models Direct Drive The motor is attached directly to the tank, and wear on the motor shaft bearing will also cause similar symptoms, requiring complex repairs.
| Symptom | Probable Cause | Character of sound | Difficulty of repair |
|---|---|---|---|
| The car is jumping | Transport bolts | Knocking, crashing | Low |
| Noise when spinning | Bearings | Roar, howl | High |
| Body runout | Shock absorbers | Dull knock | Average |
| Grinding | Foreign object | Metal clang | Average |
Problems with counterweights and engine mounting
Counterweights are heavy concrete or cast iron blocks mounted on top and sometimes below the tank. Their task is to weigh down the structure in order to dampen the inertia of wet laundry. If the fastening of the counterweight is weakened (a bolt has burst, the concrete has crumbled, the screed has weakened), a characteristic knocking sound occurs and the center of gravity shifts, which provokes vibration.
It is also worth checking the engine mounts. In belt-driven machines, the engine is suspended on a special bar. If the motor mounting bolts or the bar itself are loose, the motor begins to vibrate along with the drum, increasing the overall resonance. In models LG Direct Drive The engine is mounted directly on the rear wall of the tank, and loosening its mounting bolts is also unacceptable.
⚠️ Warning: Attempting to tighten the counterweight bolts without securing the tank may cause it to move and damage the heating element or other internal components. Use wooden blocks to support the tank.
Cracks in the counterweights themselves are rare, but are possible during transportation or impacts. Even a small crack in a concrete block will eventually cause it to splinter and cause a heavy piece to fall into the hull, causing catastrophic damage. Inspect them for chips and dust (concrete chips) under the car.
Foreign objects and unbalanced laundry
Often the cause of noise and vibration is small objects caught between the tank and the drum. Coins, buttons, bra wires or keys can get stuck in the water space. When they rotate, they create a knocking noise and upset the balance, causing the car to vibrate more than usual.
To remove an object, it is often enough to remove the top cover and, using a flashlight, try to find and pull out the obstacle through the top gap. In difficult cases, partial disassembly of the machine is required. The use of special laundry bags significantly reduces the risk of small items getting into the mechanism.
Use a long-handled magnet or a flexible wire with a hook to try to remove a metal object through the holes in the drum without completely disassembling the machine.
An imbalance of laundry is not just about one heavy item. Too little laundry is also bad. LG machines are equipped with an intelligent weighing system, but it is not all-powerful. If the machine constantly stops spinning or slows down due to an imbalance error, try redistributing the items manually or adding a couple of towels.
Specifics of models with direct drive (Direct Drive)
LG washing machines with technology Direct Drive have no belt, and the motor is attached directly to the drum shaft. This reduces the number of moving parts, but imposes its own diagnostic requirements. In such models, vibration is often associated with a malfunction of the motor itself or the rotor position sensor (Hall).
If the engine Inverter does not work correctly, it can jerk the drum jerkily, which is perceived as strong vibration. These models also use special damper rings or bushings between the engine and tank, which wear out over time. Replacing them requires precision and understanding of the electrical part of the device.
It's important to note that direct drive machines are typically quieter and have less vibration when in good working order. Therefore, the appearance of any extraneous sound or shaking in the model LG Direct Drive should be a concern in the first place. Self-diagnosis through button combinations may produce an error code indicating a problem with the motor.
LG direct drive machines are less susceptible to vibration due to the lack of a belt, but require more skill when repairing the motor and sensors.
Frequently asked questions (FAQ)
Why does my new LG washing machine vibrate a lot during the first wash?
Most likely, the shipping bolts from the rear panel were not removed. This is the most common mistake. Also check that the protective tape has been removed from the shock absorbers (if any) and that the car is level on the floor.
Can I use the washing machine if it vibrates a little?
Not recommended. Even slight vibration will eventually lead to loosening of the fasteners, destruction of the bearings and failure of the tank. It is better to immediately eliminate the cause, be it adjusting the legs or replacing shock absorbers.
How often do shock absorbers in a washing machine need to be changed?
The service life of shock absorbers is on average 5-7 years or about 2000 wash cycles. If the car starts to jump after 5 years of operation, check them first.
Does the bathroom floor affect vibration levels?
Yes, it has a significant impact. Wooden floors can resonate and amplify vibrations. The machine may slip on smooth tiles. It is recommended to use a special anti-vibration mat or pads under the feet.