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Error code reference

Bosch Washer Error Code F:17

Water filling time exceeded (conventional measurement)

Bosch codesBosch washer codes

Water filling time exceeded (conventional measurement) - water tap closed, water pressure below 1 bar, filter/supply blocked, solenoid valve broken, aqua stop valve broken, or pressure sensor broken.

First step from the service manual

Open water tap, check components, check wire harness.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F:17 means on a Bosch washer

The F:17 error code on a Bosch washer indicates that the machine has exceeded the allowable time limit for filling the drum with water during a conventional water level measurement cycle. The washer monitors how long it takes for water to reach the required level via the pressure sensor. When that fill time surpasses the programmed threshold, the control board triggers F:17 and halts the cycle to prevent damage from running the motor or heating element without adequate water present.

The most straightforward causes are external supply issues: a closed or partially closed water tap, or inlet water pressure that has dropped below the required 1 bar minimum. If supply pressure and valve position are confirmed correct, the next area to inspect is the inlet filter screen and the supply hose itself. Sediment or kinking can restrict flow enough to cause a timeout. The aqua stop valve, which is a safety device built into the supply hose assembly, can also fail in the closed position, cutting off water entirely.

If supply and plumbing components check out, the fault may lie with the solenoid valve inside the machine, which controls water entry into the tub. A failed solenoid coil will prevent the valve from opening regardless of supply pressure. Finally, the pressure sensor and its associated wiring harness should be evaluated. A faulty pressure sensor may incorrectly report that the drum is full or fail to register filling progress, causing the control board to time out even when water is actually entering the machine.

Source: manufacturer service documentation.

Common causes of F:17

  1. 01

    Water tap closed or partially closed

    Wiring / connection

    The supply tap behind or beneath the washer must be fully open for adequate water flow. Check that the tap is turned completely counterclockwise and has not been accidentally bumped shut.

  2. 02

    Water inlet pressure below 1 bar

    Wiring / connection

    Bosch washers require a minimum inlet pressure of 1 bar to fill within the allowed timeframe. Low household water pressure, especially during peak usage hours, can trigger F:17 without any fault in the machine itself.

  3. 03

    Clogged inlet filter or kinked supply hose

    Wiring / connection

    A mesh filter screen is located at the point where the supply hose connects to the washer. Sediment buildup in this screen, or a kinked or pinched hose, will restrict flow and cause a fill timeout. Remove the hose and inspect the screen, cleaning it if necessary.

  4. 04

    Failed aqua stop valve or solenoid inlet valve

    Part replacement

    The aqua stop safety valve integrated into the supply hose can fail in the closed position, blocking all water entry. Separately, the internal solenoid valve that admits water into the drum can fail electrically or mechanically. Testing the solenoid coil for continuity and inspecting the wire harness connection will help isolate the fault.

  5. 05

    Faulty pressure sensor or wiring harness

    Part replacement

    The pressure sensor monitors water level inside the drum and reports fill progress to the control board. A defective sensor or a damaged wire harness connection to the sensor can cause the board to receive incorrect level data, triggering a timeout even when water is flowing normally.

See the test procedure for each cause

Frequently asked questions about F:17

What does F:17 mean on a Bosch washer?
F:17 means the washer failed to fill with water within the permitted time during a conventional water level measurement cycle. The control board monitors fill time and stops the machine when the limit is exceeded to prevent running dry. The cause can be as simple as a closed water tap or low supply pressure, or it may point to a blocked filter, a failed inlet valve, or a faulty pressure sensor.
How do I fix the F:17 error on my Bosch washer?
Start by confirming the water supply tap is fully open and that your home water pressure is adequate. Next, turn off the supply, disconnect the inlet hose, and inspect and clean the mesh filter screen at the hose connection. If the supply side is clear, check the supply hose for kinks. If the error persists after addressing those items, the aqua stop valve, solenoid inlet valve, wiring harness, or pressure sensor may need to be tested and potentially replaced.
Will resetting the washer clear the F:17 error?
Resetting the washer may clear the error code temporarily, but the fault will return if the underlying problem has not been resolved. To reset, turn the program selector to the off position, wait a minute, and restart the machine. If F:17 reappears on the next fill cycle, further diagnosis of the water supply and internal components is required.
Is it safe to use my Bosch washer when F:17 is displayed?
You should not attempt to run a wash cycle while F:17 is active. The machine has stopped specifically because it cannot confirm adequate water in the drum, and running the motor or heating element without sufficient water can cause component damage. Diagnose and resolve the fill issue before resuming normal operation.
How much does it cost to repair a Bosch washer showing F:17?
If the fix involves only cleaning the inlet filter or adjusting the tap, there is no parts cost. Replacing a supply hose with an integrated aqua stop valve typically costs in the range of $20 to $60 for the part. A solenoid inlet valve replacement generally runs $30 to $80 in parts, while a pressure sensor replacement is usually $20 to $50. Adding professional labor, total repair costs can range from $80 to $200 or more depending on which component is at fault.

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