Bosch Washer Error Code F:29

F:29 means the washer's flow sensor detected no water entering the machine during the fast measurement phase of the fill cycle. The control board expects to see water movement within a set time window, and when flow is not confirmed, it stops the cycle and displays this fault. The cause can range from a closed water tap to a failed solenoid valve, Aqua Stop valve, or flow sensor. Checking the water supply and inlet filter is the recommended starting point.

You should not attempt to run a wash cycle while F:29 is active. The machine has halted because it cannot confirm water is filling the drum, and running the motor without adequate water can damage internal components. Resolve the fill fault before resuming normal use.

A reset may temporarily clear the fault code from the display, but the error will return as soon as the machine attempts to fill again if the underlying problem has not been resolved. To permanently clear F:29, the root cause such as a blocked filter, closed tap, or failed component must be corrected first. After the repair, running a short cycle will confirm the fault has been resolved.

Start by confirming the water supply tap is fully open and the inlet hose is not kinked or blocked. Next, disconnect the inlet hose from the back of the washer and clean the small filter screen inside the valve port. If water supply and the filter are both fine, the solenoid inlet valve, Aqua Stop hose assembly, or flow sensor may need to be tested and replaced. Check all wire harness connections to these components before ordering parts.

If the fix is simply opening a tap or cleaning the inlet filter, there is no parts cost. A replacement solenoid inlet valve typically costs between $30 and $80 for parts, while an Aqua Stop hose assembly can range from $25 to $70. If professional labor is involved, expect to add $80 to $150 or more depending on your location and the technician's rates.