How to replace brushes on an Ariston washing machine?

How to replace brushes on an Ariston washing machine Electric brushes are an integral part of the SMA commutator engine. They are presented in the form of a graphite tip with a spring. Their function is to supply energy to the rotor. Over time, it becomes necessary to change the brushes on the Ariston washing machine due to their “erasing”. Let’s figure out how to do this, what “symptoms” will indicate wear of components.

We identify the breakdown

On average, the need to replace the commutator brushes occurs after 7-10 years of operation of the automatic machine. If you use the washer every day, the graphite rods can wear off after 5 years. The equipment itself will “hint” that it’s time to supply new spare parts. The main “symptoms” indicating brush wear:

“freezing” of the device when performing the next washing program with a stable supply of electricity;
grinding and noise when the drum rotates;
weak spin due to reduced engine speed;
“burnt” smell when the unit is operating;
error code F02 displayed on the equipment display. It informs about a malfunction of the electric motor.

Perhaps only one “symptom” will be obvious, or several will be noted at once. To understand that the problem really is with electric brushes, you will have to climb inside the washing machine. The repair is not particularly difficult, so you can do it yourself, at home. If the inspection reveals that only one brush is damaged, it is still necessary to replace the rods in pairs. Let's figure out where to start, what tools will be needed in the process.

We buy components

First of all, you need to buy new electric brushes.You can select spare parts by telling the manager the make and model of SMA Ariston. An even better option would be to remove the worn rods and take them to the store.

It is very important to determine which brushes are in your engine: with or without a housing, with contacts coming out from the middle or from a corner, etc.

When selecting components in online stores, you should study the assortment very carefully. It is imperative to choose a pair of brushes specifically for the specific engine of the Ariston machine, which is why it is so important to know the model and serial number of the washing machine. buy carbon brushes

Where to start?

Next, you need to take care of the tools that will be needed for repairs. Replacing brushes is not difficult; even an inexperienced user can do this task. It is better for the home master to prepare:

a pair of screwdrivers (thin and Phillips);
marker (a regular pencil will also work);
8mm TORX wrench.

You also need to prepare an automatic machine. Necessarily:

unplug the power cord of the washing machine from the outlet;
close the shut-off valve;
remove the inlet hose. Be careful, water will flow out of the tube when disconnected;
remove the garbage filter. It is located on the front wall of the case, below, on the right, behind a special hatch;
Clean the hole formed after unscrewing the filter element from dirt and accumulated debris.

The basic preparation of equipment for work has been completed. All that remains is to move the machine away from the wall to have free access to the rear panel of the case. Then you can proceed directly to the replacement.

Description of repair

The brushes are located in the SMA Ariston commutator motor. Therefore, first of all, you should “crawl” up to the motor. To do this you need:

Unscrew the two screws holding the top cover and move it to the side;
remove several bolts securing the rear panel of the case and disconnect it.

The collector engine is located immediately under the tank of the automatic machine.

The further algorithm of actions will be as follows:

remove the drive belt. To do this, pull the rubber band towards you and carefully rotate the drum pulley;
take a photo or sketch a wiring diagram for the motor;
disconnect the wires and contacts connected to the engine;
Using an 8 mm wrench, unscrew the bolts securing the motor;
grab the engine and start rocking it. This will help remove the element from the housing. Please note that the motor is very heavy, so be aware of your strength.

The next step will be to inspect and replace the brushes located on the sides of the electric motor. To remove them you need to:

disconnect the wire;
move the contact down;
stretch the spring and remove the brush.

Next, a new part is placed in place of the old one. The algorithm of actions is as follows:

install the tip into the socket;
compress the spring and place it there;
close the electric brush with the contact;
connect the cable.

Replacing the second brush occurs in the same way. Afterwards, you need to put the motor in place and assemble the washing machine body. The steps are performed in reverse order:

fix the electric motor with bolts;
connect the power supply (be sure to check the photo or sketch);
tension the drive belt. First of all, the rubber band is put on the motor pulley, then on the “drum” wheel;
Place the back panel of the case, screw the screws into the grooves;
put the top cover back in place.

Then the washer moves into place, connects to water supply. Until the brushes “grind in,” noise may be observed when the electric motor operates. However, this problem will solve itself after several wash cycles.

So, to replace electric brushes you will need a minimum set of tools and knowledge about the structure of the Ariston SMA. It is only important to choose the right components and strictly follow the repair instructions.