After turning on and loading the laundry, the Bosch washing machine does not draw water, the display shows error F27. What to do and how to fix the breakdown?
Having understood what the DTC means, you can quickly find the cause of the problem. For self-diagnosis, it is not necessary to call the wizard, follow the recommendations.
What error F27 means: decryption and troubleshooting
Error code 27 on the display of the Bosch washing machine notifies the user of a problem with the pressure sensor. There may be a malfunction in the pressure switch.
In this situation, you can remove the error F27 on your own. What do we have to do:
F27 error reset failed?
If the trouble code is still on the screen, try restarting the machine. Disconnect the SM for 20 minutes, then turn it on.
You tried simple methods, now you can solve the problem by finding a breakdown and replacing parts.
Troubleshooting and repair
To help you understand how to fix the problem, here are the most common problems with error F 27.
Filling valve
An electronic valve serves to draw water. A set signal is received from the electronic controller, then the valve opens.
As a result of overvoltage, the valve may burn out. To check a part and replace if necessary, do this:
Now you can get and inspect the device. If you see that the valve is burnt, it is better to immediately install a new element.
Pressure meter
The pressure switch that controls the amount of water in the tank can also be the reason why the washer generates an F 27 error. Since it does not receive a command for the board from the sensor, the program does not start.
Checking and replacing the sensor in SM Bosch is no different from repairing other brands.
Sunroof locking device
A door lock or UBL captures the closing of the hatch at an electronic level. After the lock is turned on, the module gives a signal for water intake. For security reasons, the Bosch washing machine will not start the program while the hatch is open.
Additionally examined mechanical latches, door handle.
A malfunction of one of the elements requires replacement. Doing it yourself is not difficult:
- To change the UBL, open the door and unscrew the screws securing the lock.
- Bending the cuff of the hatch, remove the clamp, prying it with a screwdriver.
- Slide the cuff and pull out the lock.
- Disconnect the harnesses and remove the UBL.
- Install the serviceable part in reverse order.
Control board
If contacts or circuit board elements burn out, any part of the Bosch machine may refuse to work. Sometimes you need to replace the entire control unit.
Before deciding whether to repair or replace, be sure to check the board with a multimeter. For repair it is better to call the master at home.
If these recommendations helped to remove the F27 error, then you tried not in vain.