Bosch Dishwasher Error Code #F

The #F code on a Bosch dishwasher with an Apexx display means the machine detected a water filling fault. The dishwasher attempted to fill with water but the control board did not receive confirmation that the tub reached the required water level within the allotted time. This fault stops the cycle to protect internal components from running dry.

No, the dishwasher will not complete a cycle with an active #F fault. The machine halts as soon as it detects the fill fault to prevent the pump and heating element from operating without water, which would cause serious internal damage. You need to resolve the underlying cause before the dishwasher will run normally again.

A reset may temporarily clear the #F code from the display, but the fault will return as soon as the dishwasher attempts to fill again if the underlying problem has not been fixed. To reset, press and hold the Start button for several seconds or cut power at the breaker for one minute. Use a reset only as a way to confirm the repair was successful after you have addressed the root cause.

Start by checking the basics: confirm the water supply shutoff valve under the sink is fully open, inspect the inlet hose for kinks, and make sure household water pressure is normal. If supply is confirmed good, the next step is testing the water inlet valve for continuity with a multimeter. A reading outside the expected resistance range means the valve needs replacement. If the valve tests fine, the pressure or flow sensor may need inspection.

If the fix is simply opening a closed supply valve or straightening a kinked hose, there is no parts cost at all. Replacing a water inlet valve typically costs between $30 and $80 for the part, with professional labor adding $100 to $200 depending on your market. Replacing a pressure switch or flow sensor runs a similar parts cost. If you are comfortable with basic appliance disassembly and a multimeter, both repairs are manageable as DIY jobs on most Bosch models.