The washing machine turns off during the spin cycle
It happens that an automatic machine washes clothes normally, rinses things, and then suddenly turns off during the spin cycle. Why is this happening? Which SMA parts should you check first? Will it be possible to cope with the problem without the help of a specialist?
Checking and changing brushes
If the washing machine turns off during the spin cycle, in 95% of cases the motor is to blame. This malfunction is typical for washing machines equipped with brush motors. The carbon brushes wear out and the engine loses power.
When the machine puts a heavy load on the motor with worn brushes (and this happens right at the spinning stage), a malfunction occurs. After this, the washer simply turns off. To fix the problem, you will have to disassemble the SMA, remove the motor and replace the carbon rods.
The algorithm of actions will be as follows:
de-energize the SMA;
disconnect the washing machine from the water supply and sewerage;
move the device away from the wall;
Unscrew the bolts securing the rear wall of the case;
remove the drive belt from the pulley;
remove the screws holding the motor;
remove the motor from the washer;
Use a screwdriver to unscrew the screws securing the brushes and remove the graphite rods.
Next, you need to purchase new electric brushes. When purchasing components, be sure to focus on the make and model of your washing machine. Even better is to take the worn-out rods with you to the store and ask the seller to select similar spare parts.
Before installation, be sure to ground in the new electric brushes, otherwise the SMA motor will spark.
If you do not grind the brushes in and immediately put them in place, the engine will spark. This can lead to the automatic machine switching off suddenly.There are three ways to “fit” the carbon rods. The first option involves using coarse sanding paper. The algorithm of actions is as follows:
grind the brushes using a file and coarse sandpaper to adjust the size of the tips to the electric motor;
attach the brushes to the motor;
Place glass sandpaper under the carbon rods;
adjust the armature so that the sanding paper touches the brushes;
clean the engine of carbon particles (you can remove the dust with a dry cloth, but better - with a stream of air);
start the engine, giving a load of no more than 30% of the operating power;
Clean the motor from dust again (otherwise there will be a risk that the motor will short out in the future).
The second method of grinding in electric brushes involves using a strip of glass sandpaper. It is wound around the engine and attached to the motor housing. The graphite rods are then placed in cases and rotated around the armature. The elements should be rotated in the direction in which the entire mechanism moves.
There is a third adjustment option, but it is not used so often. It is necessary to rub coarse sandpaper over the engine body 3-4 times. At the same time, you need to press the brushes against the sandpaper. The grinding is completed when the graphite rods lie flat on the motor.
Lapped brushes are mounted in the motor housing. Afterwards, the motor is put in place, and the washing machine is assembled in the reverse order. Then you need to run a test cycle, with a spin speed of no more than 400-600 rpm. Observe the operation of the device - if everything is fine, the repair can be considered successfully completed.
The slats have peeled off
If the washing machine turns off during the spin cycle, but the brushes are fine, you need to check the motor slats. These are metal plates located on the engine shaft and transmit current through the circuit. When they peel off, contact is broken and the system fails.
The cause of detachment of the lamellas is excessive heating of the plates, which occurs due to short circuit or jamming of the rotor.
When a current exceeding the operating load passes through the lamellas, the thin metal begins to peel off. Typically, plate separation occurs due to:
broken bearings that abruptly stop the engine;
washing with unfixed drum flaps (typical for automatic machines with vertical loading).
The plates will not peel off without a reason. The separation of the lamellas also indicates other related engine failures. Therefore, the best solution in this situation is to completely replace the electric motor. When purchasing a new collector, be sure to focus on the model of your washing machine.
If the new SMA turns off during spinning, contact the service center. Diagnostics and repairs will be performed free of charge, under warranty. In this case, it is not recommended to climb into the machine yourself.
It happens that an automatic machine washes clothes normally, rinses things, and then suddenly turns off during the spin cycle. Why is this happening? Which SMA parts should you check first? Will it be possible to cope with the problem without the help of a specialist?
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