How to check the motor of a Samsung washing machine

No one is immune from breakdowns of household or any other appliances, so it is always better to be able to diagnose yourself, so as not to spend extra money on analyzing the possible cause of the malfunction. If the washing machine suddenly stopped working, the problem may be hidden in any part: from the belt with electronics to the wiring or the engine. You can check the engine of the Samsung washing machine yourself, but only by strictly following the instructions and observing all safety measures.

We remove the engine and check its functionality

To test the washing machine engine, you first need to study its structure. Samsung washing machines are usually equipped with a collector-type motor, which is distinguished by its compact size and high power. An important part of the engine is the drive belt, which connects to the drum pulley to start the rotation process.

The internal mechanism of the device consists of a rotor, a stator, two electric brushes, and a tachometer that controls the speed in revolutions. Before you start checking the motor, you need to remove it from the washing machine.

• We disconnect the back panel of the washing machine, for which it is necessary to unscrew all the bolts around the perimeter.
• We remove the drive belt, having first loosened it by rotating the pulley.
• We disconnect the supply line connected to the engine.
• We unscrew the bolts and then remove the engine, rocking it from side to side.
• Finally, we begin diagnosing the motor, for which we need to connect the wires from the rotor and stator windings, and then apply 220 volts to them. If the device starts rotating, then it is working properly and everything is fine.

This method is not ideal, since it is not possible to conduct a full test of the motor, especially in a situation where in the future it will function not in one, but in different modes. There is also a risk of damaging the engine due to direct connection, which can cause a short circuit. Therefore, for safety testing, first of all, it is necessary to include a "ballast" in the circuit - a heating element from a washing machine will do. In this case, the heating element will begin to heat up when short-circuited, due to which it will take on a possible impact and protect the motor. We proceed to the next stages of diagnostics, during which we will check the remaining parts of the electric motor.

Are the graphite brushes intact?

First of all, we check the electric brushes, which are located on both sides of the housing. Without them, the collector motor would not be able to work at all. Carbon tips are subject to friction, so they tend to fail relatively quickly. To check them, follow the instructions.

• We unscrew the bolts holding the brushes.
• We compress the spring and remove the electric brushes.
• We disassemble them to evaluate the tips. If the length of the carbon tip has become less than 1.5 centimetres, then it is time to replace them.

Over time, the electric brushes wear out and become unusable, so they should be carefully checked and replaced in a timely manner. These parts are always replaced in pairs, even if only one electric brush is damaged. Take the damaged brushes with you as an example to buy the same or similar ones. The above instructions, implemented in reverse order, are suitable for installation.

Testing other engine components

It is impossible to check the motor without testing the lamellas, which are responsible for transmitting the electric discharge to the rotor. These parts are glued directly to the shaft, but when the motor jams, they can break and peel off. In this case, it is not necessary to change the motor if the peeling is small and it is possible to use a lathe and fine sandpaper.

If there are problems with the winding, the engine will either not accelerate to its maximum or will not start at all. This happens because of a short circuit, after which the electric motor heats up seriously, the temperature sensor notices the overheating of the system and immediately turns off the washing machine. In such a situation, there is a risk of damaging the thermistor if the malfunction is not fixed in time. The condition of the winding can be checked with a multimeter.

• We turn on the tester to the “Resistance” mode.
• We apply the probes to the lamella.
• The normal value is considered to be 20-200 Ohm.

It is also worth checking the stator with a multimeter. To do this, in the buzzer mode, you need to alternately apply the probes to the winding. If the multimeter does not record anything, then there is no damage. If there is a problem in the winding, then the engine will be easier and cheaper to simply replace than to repair.