When the display shows error F 22, the washer stops working and responding to commands. The machine does not heat water during washing.
What does the error code F22 on the Bosch washing machine display mean and how to fix it? In this article, we will deal with the causes of the breakdown and list the effective solutions.
SM Bosch models without a screen inform about a problem by glowing (blinking) of 1000, 800 and 600 revolutions bulbs.
How to fix the error yourself: simple ways
To fix the situation, you need to find the cause of the breakdown. When the Bosch washing machine stops heating water and issues error code 22, you need to solve the problem as soon as possible.
What external signs may indicate a lack of heating:
- 20-30 minutes after starting the program, the hatch is still cold.
- The laundry is washed poorly, a musty smell is felt.
Some users determine the lack of heat by pulling cold laundry from the tank. However, this is normal, because rinsing occurs in cold water.
Before you start troubleshooting a problem with the Bosch engine, try the available methods to reset F22.
- Incorrect operation. If you did not look into the CM Bosch instructions before use, then you might have chosen the program incorrectly. For certain types of fabrics, washing at low temperatures is provided, pay attention to this.
- Incorrect connection. If the hoses are incorrectly installed and positioned, water will constantly circulate. The washing machine does not have time to heat it. Check the connections and correct the situation.
- Lack of electricity. If the Bosch machine does not start at all, check the mains voltage, it may have knocked out the lever on the switchboard.
- Failure of the electronic controller. It happens that the system crashes, so you can reset error F22 by rebooting. Unplug the washer from the wall outlet for 15-20 minutes. If the malfunction code does not appear after restarting, then everything is in order.
You tried all the methods, but they did not help. What to do? Continue troubleshooting.
Next, you will find out the most common failures with error F 22.
What to do to repair the machine with your own hands
Low quality detergents, power surges - all this can lead to breakdown of equipment.
If the Bosch washing machine heats the water too slowly or does not heat at all, the cause of the malfunction may be in the heater.
Heating Element (TEN)
First of all, the connection circuit of the heater with the control module is checked. If the contacts are damaged, then the heater simply does not receive a signal. Take the multimeter and proceed:
- Having disconnected the machine from the network and communications, remove the back panel.
- Below you will see TEN.
- Inspect its connections at the time of wear.
- Measure the resistance of the element by connecting the tester probes to its contacts.
- A working heating element will show a resistance of 25 to 30 ohms.
- To replace the heater, disconnect the electrical connectors.
- Loosen the center nut.
- Prying off the edges, pull out the element and install a new one. The video will help:
It happens that the performance of the TENA circuit is normal, but, taking it out of the Bosch machine, you see the scum. It can also cause heater damage and lack of heat. If the scale is not removed, the element will have to be replaced.
It is recommended once every three months to carry out the prevention of scale with special means.
Thermostat (temperature sensor)
The temperature sensor signals the control board that the heater is on and off. When the thermostat breaks (which also happens due to scale), the washer may overheat water or not heat it at all.
Since the sensor is located in the base of the heater, its replacement is similar: remove the heater and install a new thermostat.
Failed to remove error F22 - move on.
Level sensor
A pressure switch (level sensor) measures the amount of water in the tank of a Bosch washing machine. When it is enough, heating begins. Therefore, be sure to check the pressure switch and its tube.
What does this mean: remove the top cover, disconnect the hose of the level sensor, flush it from clogging. If everything is OK with the hose, replace the pressure switch.
The last thing they check is the control board, because the element is least likely to fail. But if you have already checked all the details, and the F 22 error is still on the display, then inspect the module.