A sudden crash during the operation of household appliances can scare any owner. If the drum on the Samsung washing machine knocks when pressed, it is dangerous to ignore this symptom. Loud metal clang or a hum often indicates serious mechanical damage inside the tank.
Timely diagnosis allows you to avoid expensive repairs or complete replacement of the unit. In this article, we will discuss in detail the main causes of extraneous sounds and methods for their elimination.
Imbalance of laundry as the root cause of knocking
The most common, but common cause of noise lies in the wrong loading of things. When heavy objects, such as jeans or towels, are knocked into one dense lump, the center of gravity shifts. When rotating at high speeds, the drum begins to beat against the walls of the tank, emitting a characteristic knock.
In modern models Samsung system-set balancingIt tries to compensate for the distortion by changing the speed of rotation. However, with a strong imbalance, the electronics may not cope, and the machine will start to “jump” and rattle. It is important to evenly distribute the underwear by drum volume before starting the program.
It is also worth considering the weight of the loaded items. Exceeding the maximum load specified in the instructions creates an excessive load on shock absorbers and springs. If you’re washing one heavy thing, it’s best to add a few lightweight items to equalize the weight.
- 🧺 Spread your clothes evenly before turning on.
- ⚖️ Do not exceed the maximum load weight specified for your model.
- 👟 Check your clothing pockets for small metal items.
Use special bags to wash delicate or small things – this will prevent them from sticking together in one lump and reduce the risk of imbalance.
Wear of bearing and osteoch
If after the imbalance has been eliminated, the problem has not disappeared, it is probably the bearings. It's bearing-knotwhich provides a smooth rotation of the shaft. Over time, the lubricant is washed out, and the omentum (cuff) loses its tightness. Water with detergent gets inside, washing out the lubricant and causing corrosion.
The first sign of wear bearings is an increasing hum, which is enhanced by pressing. Later, the hum is replaced by a distinct metal clanging or creaking. If you start the machine in this state, the shaft can jam, which will lead to rupture of the tank or combustion of the engine.
Replacement of bearings in washing machines Samsung A time-consuming process that often requires a complete disassembly of the tank. In some models, bearings are not subject to separate replacement and are changed only with the tank in the assembly, which significantly increases the cost of repair.
⚠️ Warning: Operating a machine with humming bearings can lead to a jamming of the shaft and pulley break, which will damage the electric motor.
To extend the life of the unit, it is recommended to use high-quality detergents and regularly clean the car of scale. Aggressive chemistry quickly destroys the rubber shaft seal.
Weakening or damage to balances
Concrete or cast iron blocks fixed at the top and bottom of the tank are called counterweights. Their job is to extinguish the vibrations. If the mounting is weakened, the concrete begins to knock on the metal body or the tank itself. This creates a very loud, low-frequency knock, especially noticeable at high revs.
Check the state of the balances can be by removing the upper cover of the car. It is necessary to visually inspect the mounting bolts and the concrete blocks themselves for cracks. Sometimes the concrete crumbles and its particles get into the mechanism, causing additional problems.
If backlash is found, the bolts should be tightened with the recommended effort. In the case of a crack in the concrete, replacement of the element is required. The use of a damaged counterweight is unacceptable, as it can split completely during pressing.
| Symptoms. | Probable cause | Nature of sound | Difficulty of repair |
|---|---|---|---|
| The hum builds up over time. | Wear of bearings | A low-frequency hum that turns into a squabble | Tall. |
| Knocking on pressing | Laundry imbalance | Deaf blows to the walls | Low. |
| Metallic ringing | Foreign subject matter | Ringing, periodic. | Medium |
| Vibration and displacement | Defective shock absorbers | Rumbling at a car race | Medium |
Injection of foreign objects into the tank
Often the cause of knocking are small things forgotten in the pockets: coins, keys, bones from a bra or a pin. Once in the space between the tank and the drum, they begin to beat against metal surfaces as they rotate.
Especially dangerous are metal objects that can get stuck in water holes or damage the heating element. The bones from the bras often get stuck in the rubber hatch cuff or fall under the drum, causing a grinding.
To remove the object, sometimes it is enough to remove the bottom drain filter or pipe. In more complex cases, a partial disassembly of the machine is required. If the object is not removed, it can damage the TENG or damage the hatch glass.
☑️ Search for foreign objects
Failure of shock absorbers and springs
The tank of the washing machine is suspended on springs and relies on shock absorbers. These elements extinguish the vibrations. If the shock absorbers "leaked" or lost stiffness, the tank begins to chaoticly beat against the body. This is accompanied by a strong roar and displacement of the car from the spot.
You can check the shock absorbers by pressing on the tank from top to bottom. If it walks too easily, as on jelly, and does not return to its original position with a jerk, then the damping is broken. The springs can stretch or burst from metal fatigue.
Replacing shock absorbers is not a complicated procedure, but requires access to the bottom of the unit. It is recommended to change them in pairs, even if one looks good to ensure uniform quenching of vibrations.
⚠️ Warning: Before checking the shock absorbers, be sure to disconnect the washing machine from the power grid to avoid electric shock.
Weakening of the pulley or sleeve of the drum
The pulley worn on the drum shaft transmits the rotation from the engine. If the locking bolt is weakened, the pulley begins to dangle and knock. In cars. Samsung With direct drive, the situation is different: there the motor is attached directly to the tank, and the knock can emit the engine rotor when the shaft is back.
It is also worth checking the sleeve (if it is in the design of your model). The plastic sleeve of the slide wears out over time, increasing the gap between the shaft and the support. This leads to a beating and a characteristic knock.
For diagnosis, it is necessary to remove the back cover of the car. Visually assess the state of the pulley mounting and the presence of backlash. With direct drive, shake the drum with your hand - if there is a knock, it may be a problem in the motor bearings.
Features of direct drive Samsung
Direct-drive machines do not have a belt and pulley, so knocking is often associated with engine bearings or weakening of the rotor mount.
Deformation of the cross drum
A cross is a metal detail to which the back wall of the drum is attached. Due to constant loads, overloads with underwear or aggressive chemistry, it can corrose or crack. In cars. Samsung It's less common than bearing wear, but it happens.
If the cross is touched, the drum is stained. When rotating, it begins to touch the hatch cuff or heating element. At first, it manifests itself as a light noise that quickly develops into a strong grinding and knocking.
Repairs are difficult in this case. The entire drum assembly is often required to be replaced, as crosses are rarely sold separately and their replacement requires pressing and balancing. A blood crack is a critical malfunction requiring immediate cessation of operation.
The knock, which increases as the water warms up, often indicates a thermal expansion of the crack in the metal cross.
Diagnosis and prevention
To determine the cause of the noise, conduct a test run without laundry. Turn the drum with your hand - it should rotate silently and smoothly. If you hear the grinding, the problem is mechanical. If the knocking only appears at high revs, it is most likely a matter of balancing or depreciation.
Regular prevention will prolong the life of your washing machine. Use scale remedies, do not overload the tank and monitor the cleanliness of the filter. Detecting the problem in a timely manner will save you money on expensive repairs.
If you are not sure of your abilities, it is better to contact the service center. Independent repair of complex units without experience can lead to final failure of the unit.
Can I continue washing if the drum is knocking a little?
No, it is not recommended to continue operation. Even a weak knock indicates the presence of a gap or friction. Over time, this will lead to the destruction of adjacent parts: the tank will be damaged, the engine will burn or the shaft will jam. It is better to stop the car and make a diagnosis.
How much does it cost to replace bearings in Samsung?
The cost depends on the model and the region. The work of the master plus spare parts usually cost 30-50% of the cost of a new machine. If you need to replace the tank in the assembly, the price can be even higher, and in this case it is often more expedient to buy a new equipment.
Why does the car only knock when pressed?
When pressed, the drum rotates at a maximum speed (1000-1200 rpm). Any balance defects, weakened counterweights or worn bearings are manifested under high load and at high revs, when the centrifugal force is maximum.