Instructions for replacing brushes on an LG washing machine yourself

foto36101-1There are no unnecessary parts in the washing machine. Each of them is important because it performs a specific function.

One of the weak points of any machine is the brushes. Over time, they wear off, which entails a deterioration in the quality of washing and spinning.

If the malfunction is not corrected in time, the device may completely fail. Read the article about when brushes on an LG washing machine need to be replaced and how to do it.

When does it need to be replaced?

LG washing machines with commutator motors are equipped with graphite electric brushes. They are needed to transmit electricity to the motor armature. The parts are represented by small rectangular cylinders with copper contacts and steel pressure springs.

When the motor rotates, the surface of the brushes comes into contact with the rotor, so they are subject to wear. Despite the fact that special alloys are used for their manufacture, spare parts are subject to abrasion.

The average duration of their service is 5 years, subject to active use of the washing machine. The wear process of carbon brushes is accelerated by dust getting into them.

They change shape, causing the engine to malfunction. As a result, the washing machine begins to function improperly.

Signs indicating wear:

  1. foto36101-2Noise and crackling. It appears when the engine is running. Extraneous sounds are heard most strongly from the place where the motor is mounted.
  2. Wet laundry after spinning.The washing machine does not have enough power to cope with this task.
  3. Stop washing. This can happen when running any program.
  4. The appearance of smoke, sparks and a burning smell.
  5. An error code appears on the display. If the electric brushes malfunction, the CE code may appear on the display of the LG washing machine.

Faulty brushes cannot be ignored. The sooner they are replaced, the better. If you continue to operate the device in this mode, serious damage cannot be avoided.

How to disassemble an LG washing machine?

To get to the brushes in the LG washing machine, you will have to disassemble it. You can do this yourself adhering to the following algorithm:

  1. Remove wet laundry from the drum and unplug the appliance.
  2. Disconnect the drain hose from the sewer, turn off the water supply hose.
  3. Unscrew the wall on the back of the machine. It is secured with 4 bolts and inserted into grooves that need to be carefully bent.
  4. You can see the motor and brushes under the tank.
  5. Remove the belt from the drum and motor.
  6. To make sure that the problem really lies in the brushes, they need to be checked. This can be done using a tester, setting it to ring.
  7. Remove the motor and remove the terminals and wires from it. In this case, you need to remember exactly in what position it is located. If you connect it incorrectly, you can burn the motor or control board.
The failure of the brushes is indicated not only by a decrease in their length, but also by broken contacts, as well as cracks in the graphite. Even if only one part fails, both elements must be replaced.

How to change?

To replace brushes from a removed motor, you need to do the following:

  • foto36101-3disconnect the wires that connect them to the engine;
  • unscrew the screws that hold the brush holders;
  • remove the brushes from the motor;
  • remember which side the graphite is beveled on - to do this, you can put a notch on the holder itself;
  • remove the wire that is welded to the guide - you can use wire cutters for this;
  • when the wire is disconnected, it will be possible to remove the old graphite; do the same with the second brush;
  • install new graphite, solder the wire to the place where it was attached before.

If you don’t want to replace the graphite, you can simply install new brushes by screwing them to the motor and connecting the wires. This is the easiest option for replacing parts, but you won’t be able to save a little on repairs, since new brush assemblies are more expensive than graphite.

Before installing new brushes, you need to inspect the rotor and starter. If dust, dirt or traces of graphite are found on them, they must be cleaned with a dry cloth and wiped with a cotton pad soaked in medical alcohol.

How to assemble?

When new brushes are purchased or the graphites in the old guides are replaced, you can begin assembling the washing machine.

Procedure:

  1. The brushes are installed on the motor, screwing them with self-tapping screws to the motor at the mounting points.
  2. Place the wires on the terminals.
  3. The motor is returned under the tank, after which it is secured with bolts.
  4. Put on the belt to check the quality of its tension.
  5. Connect the wires that were connected to the motor.
  6. Close the back cover of the washing machine and screw it in with self-tapping screws.

Subsequent operation of the household appliance

foto36101-4Sometimes new brushes may spark slightly after installation. This is normal.

After several washing cycles, excess the graphite will be erased and the sparking will stop. You can check the functionality of the new brushes by turning on one of the dry washing modes, without loading things.

In order for the spare parts to “break in” immediately after replacing them, it is not recommended to load the drum 100%. It is advisable to wash a small amount of items. Also, do not turn on the spin cycle at maximum speed.

A small number of revolutions will reduce the load on the motor while the brushes grind in. After 5-6 cycles, you can use the washing machine as usual.

How to choose and where to buy parts?

Choosing the right brushes is very important. You need to buy original spare parts, which are designed for a specific model of LG washing machine. You cannot buy brushes of different sizes.

They must have the same length and be made of the same material. It is unacceptable to install parts of different hardness. This will cause motor damage.

You need to buy spare parts from trusted sellers. If they are not available in a regular store, you can order online.

Cost of original brushes for an LG washing machine is about 600 rubles. You can save and buy universal parts only if you are sure that they are 100% identical to the original spare parts.

Call the master

If you cannot replace the brushes in your LG washing machine yourself, you should seek help from a specialist.

There are several ways to find a master:

  1. foto36101-5Study advertisements in the newspaper or look at notice boards on the streets. Sometimes there are similar offers there.
  2. Contact the service center. In most large cities there are many organizations that professionally repair household appliances.
  3. Ask friends or relatives for the master’s contact information.Perhaps they have used similar services and were satisfied with the quality of work.
  4. Search for advertisements of craftsmen on the Internet. You can find a private specialist or find offers from service centers.
  5. Contact a specialized LG service. If the washing machine is under warranty, then repairs should be performed free of charge.

The cost of services for replacing brushes in an LG washing machine is about 1,900 rubles. In this case, the price of the parts themselves will have to be paid separately.



The specified amount includes the following types of work:
  • disassembly of the unit;
  • engine removal;
  • diagnostics of old brushes;
  • installation of new elements;
  • checking the operation of the motor;
  • assembling the washing machine and testing it.

You can pay for the work only after it is completed. You should not make an advance payment or transfer money to the specialist’s account before he arrives on site. Before deciding on the choice of a specialist, it is advisable to read reviews from other clients.

If a specialist works honestly, he will definitely give a guarantee for the work performed. As a rule, when replacing brushes, it is 1 year. The warranty period must be documented, and not just in words.

Video on the topic of the article

The video will show you how to remove and replace the brushes of an LG washing machine:

Conclusion

Replacing brushes on an LG washing machine yourself is not difficult if you strictly follow the instructions. The main thing is to purchase parts that are suitable in size and attach them correctly to the motor. If you are not sure that you will be able to cope with the task on your own, it is better to entrust the work to a professional.

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