The rhythmic hum of a working washing machine is a familiar background sound for any housewife, but a sudden change in the acoustic background often becomes an alarm signal. When the usual hum is replaced by a loud rumble, knocking or metallic clanging, it becomes impossible to ignore the problem. Washing machine rattles during spin cycle for a reason: it is a direct result of imbalance or mechanical wear of components, requiring immediate intervention.
Rotation of the drum at high speeds creates a centrifugal force, which, in the presence of backlash or imbalance, is transformed into destructive vibration. If you hear your appliances starting to “jump” on the floor or make sounds reminiscent of an airplane taking off, you must immediately stop the wash cycle. Continued operation in this mode may result in irreversible damage to the tank or even failure of the electronics.
In this article we will analyze in detail the main causes of extraneous noise, from a coin simply forgotten in a pocket to serious wear of a bearing assembly. Understanding the nature of sound will help you make the right decision: call a repairman or try to fix the problem yourself, saving your budget.
Unbalanced laundry and foreign objects in the drum
The most common and easily eliminated reason why washing machine produces loud sounds, is the uneven distribution of things inside the drum. If you loaded one heavy item, for example, a wet terry towel or jeans, they may bunch up during the spin cycle. In this case, the center of gravity shifts, and the drum begins to beat against the walls of the tank, creating a characteristic knock.
In addition, you should carefully check the contents of your pockets before loading. Small metal objects such as keys, coins, or forgotten paper clips may become stuck between the inner and outer drum. When rotated, they create a ringing, rattling sound that intensifies with increasing speed. Sometimes even buttons that come off during washing can become a source of unpleasant noise.
To diagnose this problem, it is not necessary to disassemble the equipment. It is enough to start the “Drain” or “Spin” mode on an empty drum. If the sound disappeared, then the reason lay precisely in the content. However, if objects have already fallen into the space between the drums, simply removing the laundry will not be enough.
Before each wash, carefully check your pockets and fasten the zippers on your clothes so that metal elements do not damage the tank or heating element.
To avoid imbalances in the future, follow these simple loading rules:
- 🧺 Do not overload the drum beyond the norm specified in the instructions (usually 4-6 kg of dry laundry).
- 👖 Large items such as duvet covers are recommended to be washed separately or with the addition of small items for balance.
- 👟 Be sure to wash sports shoes and small items in special bags.
Bearing wear: hum and roar
If the washing machine hums or roars, especially at the beginning of the speed dial and directly during the spin cycle, it is highly likely to fail bearing unit. Bearings ensure smooth rotation of the drum, and their destruction is one of the most serious malfunctions that equipment owners face.
The first sign of a problem is the appearance of a characteristic noise, similar to the hum of a train or plane. At first it may be barely noticeable, but over time the intensity of the sound increases. If you start the machine with the hatch open (on front-loading models) and turn the drum by hand, you may hear a metal squeak or the rolling of balls. In advanced cases, the smell of burning from friction is added to the noise.
⚠️ Attention: Operating a washing machine with damaged bearings is strictly prohibited. This can lead to jamming of the shaft, breakage of the drum cross and even damage to the tank, which will make repairs economically impractical.
Replacing bearings is a labor-intensive process that requires complete disassembly of the machine and removal of the tank. Often, along with the bearings, the oil seal is also replaced, which prevents water from entering the unit. If the seal was damaged earlier, water washed away the lubricant, which led to corrosion and destruction of the bearing.
How long do bearings last?
The average service life of a bearing assembly is 5-7 years with regular washing. However, the use of harsh chemicals, washing at very high temperatures (90-95°C) and lack of preventative cleaning can reduce this period to 3 years.
Malfunctions of shock absorbers and springs
The tank suspension system in a washing machine consists of springs on which it is supported and shock absorbers (dampers) that dampen vibrations. If shock absorbers worn out or lost their properties, the machine begins to vibrate strongly and rattle during the spin cycle, sometimes even “jumping” on the floor.
You can check the condition of the shock absorbers visually and tactilely. To do this, you need to remove the top cover of the machine and the side wall. If, when pressing on the tank, it moves too easily, as if by leaps and bounds, and does not return smoothly to its original position, then the dampers require replacement. Springs can stretch or burst, which will also lead to misalignment and beating.
Owners often forget about transportation bolts. These locking elements keep the tank stationary during transport. If they are not unscrewed before the first start, the car will not only rattle, but shake as if it is trying to fall apart. This is the most common, but also the most dangerous mistake when installing new equipment.
☑️ Suspension system diagnostics
Symptoms of a malfunctioning vibration damping system:
- 🔊 Loud knocking and clanging while the drum rotates.
- 🏃 The machine moves from its place or “jumps” during the spin cycle.
- 📉 Strong vibration transmitted to the floor and neighboring objects.
Foreign bodies getting between the tank and the drum
There are situations when small objects penetrate through the holes in the drum and get stuck in the space between it and the outer tank. These could be bra underwires, coins, buttons or small parts. When rotating, they get into the zone of the heating element (heating element) or simply rub against the walls, creating an unpleasant grinding noise.
Metal objects stuck near the heating element are especially dangerous. They may damage the heater's protective coating, resulting in a short circuit or electric shock. Bra wires that get under the rubber cuff or in the gap can damage the seal or the tank itself.
Removing an item is not always easy. Sometimes you have to remove the heating element and try to get it through the hole using tweezers or a wire with a hook. In difficult cases, partial disassembly of the machine is required. If the object is metal and has a round shape, it may produce a characteristic ringing sound that intensifies at high speeds.
If the noise remains after removing visible objects, it is possible that part of the object (for example, a piece of bone) is still in the tank or has damaged the internal surface.
Loosening counterweights and fastenings
To stabilize the washing machine, heavy concrete blocks are attached to it - counterweights. They are located on top and in front of the tank. Over time, constant vibration can cause the bolts holding these blocks to become loose. This causes the concrete to start hitting the body or other parts, producing a dull, heavy knock.
It is also worth checking the motor and pulley mounts. If the pulley (the wheel on which the belt sits) becomes loose on the motor shaft, it will cause a lot of noise and vibration. When a drive belt becomes worn or stretched, it may also make a whistling or slapping sound, especially if it has begun to slip.
Diagnostics of fastenings should be carried out only with the device completely disconnected from the network. It is necessary to remove the side and top covers and visually inspect all bolted connections. If play is detected, the bolts should be tightened using a locking nut or threadlocker to prevent loosening again.
Table: Diagnosis of noise by sound type
To more accurately determine the cause of the malfunction, pay attention to the nature of the sound produced. Below is a table to help categorize the problem.
| Sound type | Probable Cause | Difficulty of repair |
|---|---|---|
| Rumble, roar, growing noise | Bearing wear | High (requires tank disassembly) |
| Knocking, clanging, body shifting | Faulty shock absorbers or springs | Medium (replacement of dampers) |
| Ringing, rattling of metal | Foreign object in drum | Low/Medium (access dependent) |
| Clunking sound when turning | Loosening the counterweights | Low (bolt tightening) |
| Creak, friction | Something gets caught between the cuff and the drum | Low (item retrieval) |
Prevention and operating rules
To your washing machine served for a long time and silently, it is important not only to respond to breakdowns in a timely manner, but also to follow the operating rules. Regular maintenance will help avoid costly repairs and extend the life of key components of the unit.
First of all, monitor the load level. You shouldn’t fill the drum to capacity, but washing one pair of noses is also harmful for balancing. The optimal load is 70-80% of the drum volume. It is also important to use quality detergents designed for automatic washing machines to avoid excessive foaming, which can damage electronics and bearings.
⚠️ Attention: Use only special descaling products no more than once every six months. Excessive use of acids can damage rubber seals and seals.
It is recommended to carry out preventive cleaning every six months:
- 🧼 Rinse the drain pump filter from debris and hair.
- 💧 Wipe the rubber cuff of the hatch from moisture and dirt.
- 🚿 Check the condition of the inlet hose and mesh filter.
Do I need to level the machine?
Yes, this is critical. If the washing machine is not installed level, the load on the bearings and shock absorbers is distributed unevenly, which leads to their accelerated wear and noise. Use a building level to check.
Frequently asked questions (FAQ)
Is it possible to continue washing if the machine starts to rattle?
No, it is dangerous to continue operation when loud noise occurs. This can lead to permanent bearing failure, tank rupture or engine damage. It is better to stop the wash and carry out diagnostics.
Why does a new washing machine make noise during the first wash?
Most often the cause is forgotten shipping bolts. They must be unscrewed before using for the first time. Also, the new unit may not be leveled correctly or touch the cabinet wall.
How much does it cost to replace bearings in a washing machine?
The cost depends on the car model and region. The repair includes the price of the bearings themselves, the oil seal and the work of a technician. On average, this can range from 30% to 60% of the cost of a new car, so sometimes it makes more sense to buy new equipment.
How do you know when it's time to change your shock absorbers?
Press down on the top of the tank (through an open hatch or by removing the lid) and release. If the tank swings like a pendulum and does not stop immediately, the shock absorbers have lost their rigidity and require replacement.