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The error code 27 on the Bosch washing machine display panel 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 to do:
- Check the availability of water in the faucet and pressure head. If the pressure is too low, it is not enough to fill the Bosch washer. You have two options: either wait for a strong pressure for washing, or call a plumber.
- Twist the water supply valve, perhaps it is badly open or closed. Unscrew the valve to its full capacity.
- Inspect the intake hose. Maybe he leaned over, huddled with garbage, so there is no pressure. Rinse the hose under the tap.
- Check the mesh filter at the junction of the hose and the Bosch washer. Congestion may result in clogging.
F27 error reset failed?
If the fault code is still on the screen, try resetting the machine. Turn off the SM for 20 minutes, then turn it on.
You have tried simple methods, now you can solve the problem by finding a breakdown and replacing the details.
Troubleshooting and Repair
So that you understand how to fix the problem, we give the most common problems with the error F 27.
Filling valve
The electronic valve serves to draw water. With the electronic controller receives a signal about the set, then the valve opens.
The valve may burn out as a result of overvoltage. To check the part and replace if necessary, do this:
- Shut off the water supply and unplug the Bosch washer from the network.
- Disconnect the hoses from the intake valves.
- . Unscrew the bolts from the back and remove the top panel.
- Disconnect all valve connectors and hoses.
- Unscrew the bolt, the locking valve from the back.
Now you can reach and inspect the device. If you can see that the valve is burnt, it is better to immediately install a new element.
When no external fault is detected, use a tester to measure the resistance of the coils. A healthy item will show 3.6 kΩ.Installing a new part on the Bosch CM will help the video:
Pressure sensor
A pressure switch controlling the amount of water in the tank may also cause the washer to issue an F 27 error. Since it does not receive a command to the board from the sensor, the program does not start.
Check and replace the sensor in the Bosch CM is no different from the repair of other brands.
The device of blocking of the hatch
The door lock or UBL fixes the closing of the hatch at the electronic level. After turning on the lock, the module gives a signal for water intake. For safety reasons, the Bosch washing machine will not start the program while the door is open.
In addition, mechanical latches, door handle are examined.
The failure of one of the elements requires replacement. It's not difficult to do it yourself:
- To change the UBL, open the door and loosen the screws securing the bollard.
- Having tilted the hatch cuff, remove the clamp by hooking it with a screwdriver.
- Move the cuff back and remove the lock.
- Disconnect the harnesses and remove the UBL.
- Install a serviceable part in the reverse order.
control board. If the contacts or elements of the board burn out, any Bosch component can fail. Sometimes you need to replace the entire control unit.
Before making a decision to repair or change, be sure to check the board with a multimeter. For repair it is better to call the master on the house.
If these recommendations have helped to remove the error F27, then you tried not in vain.
