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Washing machine is overfilling

Possible cause Resolution
A fault with the water inlet valve. The water inlet valve allows water to enter the washing machine drum, and if there is a problem with the washing machine overfilling, this can be caused by a faulty water inlet valve. This is not a fault that you can repair yourself and will require a repair by a trained and qualified plumber.
A fault with the pressure switch. The pressure switch, or water level switch, is responsible for sending signals to the water inlet valve to control the flow of hot and cold water into the washing machine according to the temperature setting for a particular programme. If there is a fault with this switch, this can cause the washing machine to overfill. This is not a fault that you can repair yourself and will require a repair by a trained and qualified Bosch engineer. To book an engineer visit for your Bosch washing machine call 0344 892 8979 and choose option 1.
A fault with the pressure chamber. The pressure chamber fills up with air by the rising level of water in the drum. This air is then pushed up the pressure hose and activates the pressure switch to commence the wash cycle. If there is a problem with the pressure chamber, such as a blockage, this will interfere with this process and could cause the washing machine to overfill. This is not a fault that you can repair yourself and will require a repair by a trained and qualified Bosch engineer. To book an engineer visit for your Bosch washing machine call 0344 892 8979 and choose option 1.
Please do not use the information above as a substitute for the information contained in your instruction manual, which provides resolutions to faults for your specific Bosch washing machine model which may not be covered in the information above.

Need further assistance?

If you have followed the information above but you're still having problems with your Bosch washing machine, please call Bosch customer service on 0344 892 8979 and our helpful customer service team will be able to assist you further. Alternatively you can email us using our online contact forms.

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