Today, washing machines are a common attribute in apartments and private homes. Bosch washing machines are very popular because they are made from high-quality materials using modern technologies. But even such machines can fail over time. From this article you will learn how to repair a Bosch washing machine yourself.
Diagnostics of breakdowns
Operating instructions for Bosch washing machine should contain information on how to perform such diagnostics. If the drum stopped rotating, then you need to perform the following sequence of actions:
- Close the door;
- Set the program selection knob to the “Off” position;
- Wait a couple of seconds;
- The spin handle should be set to the “Spin” position;
- Next, wait until the “Start” button starts flashing;
- Keep the “Spin speed” button pressed;
- Wait until the “Start” button flashes again;
- Set the handle to the “Drain” mode;
- Release the “Spin speed” button;
- Determine the latest failure using the error code for the Bosch washing machine.
The program deletes the last error from memory and runs diagnostics. To check the electric motor, set the mode selection knob to position 3.
To check the drain pump, set the handle to position 4. You can check the heating element by setting position 5. Diagnostics of the hot or cold water inlet valves is carried out when selecting positions 6 and 7. When choosing position 8, the water inlet valve is tested during the main wash, and 9 - during the preliminary wash washing.
Most common faults
According to Bosch service center technicians, the most common breakdowns are:
- During washing, the water does not heat up;
- Water does not drain;
- The drum does not rotate;
- The washing machine drum makes noise;
- Water does not fill;
- The electric motor does not start.
When analyzing faults, we can come to the conclusion that in Bosch washing machines the heating element most often fails. If the heating element is broken and the electronic system is working properly, the repair will not take much time.
Causes of breakdowns
There are a number of reasons why a Bosch washing machine may fail. Let's look at them one by one.
It may not drain at the end of the wash cycle for one of the following reasons:
- Pump or drain filter clogged;
- Poor contact between power supply and pump;
- The drain pump is faulty;
- The water level sensor is broken.
The drum stop may occur for the following reasons:
- The drive belt has worn out;
- Control board or electronics malfunction;
- Electric motor failure (rare case).
The drum may make noise during operation. This may be due to the following reasons:
- Bearings have failed;
- Small objects are stuck in the drum;
- The shock absorber has broken;
- Problems with the counterweight.
It is possible that the tank does not fill with water. In this case, the following reasons are distinguished:
- The Aquastop system or pump is clogged;
- No water in the water supply;
- A kink in the drain hose.
If the electric motor does not start, then most likely the drum hatch door is not closed or the electronics are faulty. After identifying the cause of the malfunction, you can begin repairs.
Repairing the drain filter
The drain filter is located at the bottom of the machine, under the lid or panel. To clean the filter, open the lid. To do this, turn it counterclockwise. Rinse the filter and install it in its original place.
To clean or replace the drain pump, you need to dismantle the front cover of the Bosch washing machine. This work is labor-intensive, but not difficult.
Quite often there is a malfunction in which the Bosch washing machine does not fill with water. In this case, you need to check the water supply and the water supply valve. They may be closed. Next, check if there are any kinks in the drain hose. If everything is in order, check the condition of the Aquastop. If this element of the Bosch washing machine is out of order, it should be replaced with a new one.
If the water level sensor breaks, it must be replaced. To do this, first dismantle the top cover by unscrewing the two screws located at the back. This sensor should be located in the right corner under the cover.To remove the water level sensor, you need to press the latch. Next, remove the hose and disconnect the contacts. A new sensor is installed in place of the old sensor.
Replacing the heating element
You can replace the heating element of a Bosch washing machine yourself. To do this, you need to remove the back cover of the Bosch washing machine. The heating element is located below, under the tank. To replace the heating element, you must perform the following steps:
- Unscrew the bolt that secures the heating element to the tank.
- Disconnect the wires;
- Dismantle the heating element;
- Install a new heating element and perform all steps in reverse order.
Replacing the drive belt and bearings
Replacing bearings on Bosch washing equipment is quite a difficult task, since this will require disassembling almost the entire washing machine. Watch a video on how to replace bearings:
The electric motor may stop due to wear on the drive belt. You can replace this element yourself. To do this, you need to perform the following sequence of actions:
- Open the back cover of the Bosch washing machine;
- Remember how the belt is secured to the grooves of the pulley. It's better to take a photo of this element.
- Take the belt slightly below the pulley and gently pull it towards you.
- With your free hand, turn the pulley counterclockwise.
- Remove the old belt from the washing machine body.
- Place a new belt on the motor of the Bosch washing machine.
- Pull the belt with one hand, and with the other try to put the drive belt on the pulley.
- Turn the pulley counterclockwise without loosening the belt. In this case, you must try to put the belt on completely.
- Install the body cover of the Bosch washing machine.
How to eliminate noise in a washing mashine drum
Before replacing the shock absorbers, you need to carefully inspect the drum of the Bosch washing machine with a flashlight. It is likely that a small object is stuck in it, which makes noise when the drum rotates. You can find out how to replace the shock absorbers in the washing machine from the following video: The noise may also be caused by loose counterweights, which are located at the bottom
of the Bosch washing machine and under the top cover. To eliminate this malfunction, you need to tighten the counterweight fasteners. If you cannot secure the counterweight, it is recommended to replace it with a similar one. This breakdown is quite rare.
Troubleshooting the engine and electronics
There are two ways to eliminate this malfunction. The essence of the first method is that the electric motor of the Bosch washing machine must be removed and given to the repairmen for repair. Perhaps they will be able to eliminate the malfunction. If the engine cannot be repaired, it will need to be replaced. Such a replacement will be quite expensive.
In order to
get to the motor of the Bosch washing machine, you need to remove the back wall of the washing machine. The engine is located under the tank. First, you need to disconnect the wires and the sensor from the motor. Secure the engine with three fasteners. They need to be unscrewed. Experts advise checking the serviceability of the sensor condensate before removing the motor. For this purpose, you will need a multimeter. You need to connect the probes of the device to the contacts and look at its readings. The multimeter should show 20-50 Ohms. If you suspect that the wiring is faulty, you need to check all the terminals, contacts and plugs.Noise in the drum may occur due to wear of shock absorbers, bearings and a torn counterweight.Before replacing shock absorbers, you need to carefully inspect
Bosch using a flashlight. There is probably a small object stuck in it that makes noise when the drum rotates. You can learn how to replace shock absorbers in a washing machine from the following video:
