Bosch Washing Machine Troubleshooting

Bosch washing machine error E17 indicates a water-fill timeout — the machine couldn't fill to the required level within the expected time.

15 min · skill: beginner

Error E18 on a Bosch washing machine indicates the machine could not drain water within the allowed time.

20 min · skill: beginner

Error E23 indicates the washing machine has detected a water leak inside the drum or drain system.

20 min · skill: beginner

Error F18 indicates a drain system failure on your Bosch washing machine.

20 min · skill: beginner

Error F21 on Bosch washing machines indicates the motor is locked or unable to rotate freely, typically caused by foreign objects trapped between the drum and tub, excessive detergent buildup, or mechanical jam.

25 min · skill: intermediate

Error F23 on Bosch washing machines signals that the water leak detection sensor has triggered, meaning water is escaping from the drum, hose connections, or pump area.

20 min · skill: beginner

Error F43 on a Bosch washing machine indicates a locked rotor: the motor is energised but the drum cannot rotate.

30 min · skill: intermediate

Error F63 on a Bosch washing machine indicates a communication fault between the main control board (PCB) and another internal board (typically the motor control inverter or display board).

30 min · skill: advanced