Errors and malfunctions of washing machines Bosch

Bosch brand washing machines are known for their high quality, reliability, long service life and functionality, but they also occasionally break down. To understand what happened to the machine, it helps to decipher the errors displayed on the equipment display.
Error Codes
Code | What does it mean | Causes of error | What to do |
F01 | Door problem | The door is not closed tightly or not closed at all. | Open and then close the door again with extra force. Check if excess laundry is preventing the door from closing. |
F02 | Water supply problem. | The water supply faucet is blocked. The water pressure is too low. The filter in the water intake system is clogged. | Check the water pressure and that the water supply is open. Clean the strainer. |
F03 | Water drainage problem (water will not run out in ten minutes). | The pipes are blocked. Faulty pump. Faulty drain control electronics. | Clean the hoses and pipes. Repair or replace the pump. Repair the electronics. |
F04 | Water leakage appears. | Joints and pipes are leaking. | Check tightness and repair the leak. |
F16 | Door problem | Machine door not closed. | Close the machine door. |
F17 | Water intake problem (water takes too long to arrive or does not flow at all) | The filter of the fill hose is clogged. The water pressure in the pipes is too low. The water supply tap is blocked. | Clean the filter. Check water pressure. Open tap. |
F18 | Drainage problem (water takes too long to drain) | Drain pump is blocked or broken. Water level sensor does not work. | Clean the pump or replace it. Replace sensor. |
F19 | Problem with water heating (water takes too long to heat up, washing continues with cold water) | Faulty heating element. Voltage in circuit is too low. Temperature sensor does not work. | Check and replace heater. Check voltage. Replace temperature sensor. |
F20 | Problem with water heating (it heats up in a situation when it should not be heated) | F20 Heating sensor is broken. Heating element relay doesn't work. | Check the parts and replace them with working ones. |
F21 | Drum problem (drum stops rotating if the motor is working irregularly) | Tachogenerator does not work. The reversing relay is broken. | Check parts and replace with working parts. |
F22 | Problem with temperature sensor. | Breakage in sensor electrical circuit. Sensor is broken (e.g. short circuit). | Check sensor and connections, replace defective parts. |
F23 | Auto Stop triggered | Machine tray full of water. Breakage in sensor electrical circuit. | Look for possible leaks and check the wiring. |
F25 | Aquasensor problem. | The sensor is dirty (e.g. encrusted) or broken. Drainage system or pressostat doesn't work. | Inspect sensor, clean debris or replace with a working part. Check pressostat and drain system, replace defective parts with working parts. |
F26 | Problem with pressostat | Pressure sensor is defective. There is a break in the pressure sensor wiring. | Check the pressostat and its connection circuits for malfunctioning. Replace defective parts with serviceable parts. |
F27 | Problem with the pressostat | Sensor incorrectly set (calibrated incorrectly). | Check pressostat and set new values. |
F28 | Problem with flow sensor | Sensor itself or associated wiring is defective. | Check the sensor and its wiring. |
F29 | Problem with the flow sensor (it does not detect the water flow) | Water is not flowing into the machine due to clogged pipes or broken fill system. The sensor does not work. | Check the elements responsible for the water supply to the machine. Check the sensor to determine if it operates correctly. |
F31 | The maximum water level in the machine has been exceeded. | Pump responsible for drainage is broken or blocked. Drainage hose is obstructed. Magnetic valve is broken. Pressostat setting broken. | Check the elements responsible for draining the machine. |
F34 | The door lock is broken or won't close. | The lock is broken or cannot be closed due to a mechanical obstacle. | Check lock function, door collar, and wiring. |
F36 | Problem with the sunroof lock | The lock is broken or the module controlling it is not working. | Check the operation of the lock and its control module. |
F37 | Problem with temperature sensor (machine continues to run but water does not heat up) | Sensor broken. The wiring to the sensor is damaged. | Check the sensor and its wiring. |
F38 | Problem with temperature sensor (Washing continues but water remains cold) | Short circuit occurred. | Check the sensor and its wiring. |
F40 | Synchronisation problem | Mains voltage is not within tolerance. | Check supply system and correct parameters. |
F42 | Motor problem (motor overspeed) Check supply system | Control module does not function (often caused by triac burnout) | Check the triac and resolder it. |
F43 | Problem with the motor (it does not rotate) | The tachogenerator is broken. There is a mechanical obstacle to the movement of the drum or motor (e.g. laundry). Control module does not work. | Check tachogenerator and control module. Check that no laundry entered the drum. |
F44 | Motor problem (no reverse rotation) | Control module damaged (often the problem is with a triac or reversing relay). | Check the parts and replace with working ones. |
F59 | Problem with 3D probe | Sensor is broken. Power module didn't work. Software error appeared. Broken wiring. | Check parts and replace with working parts. |
F60 | Problem with the flow sensor. | Water pressure too low. The sensor is out of order. | Check the water pressure and the sensor. |
F61 | Problem with the door. | Wrong signal from the door lock as a result of a broken locking mechanism or damaged wiring. | Check the door lock and associated wiring. |
F63 | Check the door lock and the related wiring. | Processor not working. Software error appears. | Check and replace the control module. |
F67 | Card coding problem. | Incorrect coding of the control module. Software error appeared. | Recode the module or replace the card. |
Е02 | Problem with electric motor | Motor or parts of motor not working. There is a problem with the machine's electronics. The wiring associated with the motor is damaged. | Check the motor as well as its circuits for proper operation. Check the electronic circuits of the machine. |
Е67 | Error in coding of the control module. | The coding is wrong. | Reflash the module or replace it with a new one. |
Frequent malfunctions
Most often, the owners of washing machines of the Bosch brand turn to service centers for the following reasons:
- The temperature sensor or TEN has failed, as a result of which the machine stopped heating water.
- The drain pump is broken or clogged. This is one of the most common breakdowns of Bosch machines.
- A foreign object has gotten into the drum, the bearings have worn out, or the shock absorber mounts have loosened. All of these causes are manifested by strong vibration and loud noises from the machine during washing.
- The motor or control module has broken, as a result of which the machine does not turn on at all or the drum stops rotating.
- The tachometer has broken, as a result of which the laundry does not spin.
On replacing the pump in a washing machine with a vertical load and replacing the bearings in a washing machine with front-loading Bosch brand Vladimir Khatuntsev made a video, according to which you can do all the work yourself.
Tips and prevention of breakdowns
- To clean the outside of the machine, you should only use non-abrasive means, which do not contain solvents. Wipe the machine with a slightly damp soft cloth. Do not allow the washing machine to come into contact with large quantities of water.
- Do not use steel nets or products containing chlorine in drum cleaning.
- Clean the detergent hopper on a regular basis. To do this, remove the flask, rinse it under running water using a brush, then wipe it dry and reinsert the tank.
- To prevent breakdowns, it is important to regularly clean such parts of the washing machine as the drain pump, drain hose, as well as the hose filter through which water enters the machine. The steps for cleaning these parts of the machine are described in the instructions for the machine.
Specialists in repairing washing machines advise to carry out the prevention of breakdowns by following the simple actions shown in the Ukrainian program "Vse budedobre".