Bosch Dishwasher F on an Older Display (Water Filling)

What F means

Where an older Bosch dishwasher has a two-digit display, a single F stands for the fill-water code. Bosch's service sheet lumps four situations under it: no fill, too much fill, too little fill, or water standing in the base. It also notes the code will not clear on command, so mashing buttons accomplishes nothing until the underlying problem is dealt with.

Common causes of F

Blocked screen or half-closed supply stop, so the tub underfills
Inlet valve leaking through and overfilling
Leak dripping into the base pan under the tub

✓ One safe check you can try

1. Shut the supply stop under the sink first, as standing water below the tub is one reading of this code and an open supply keeps adding to it. 2. Look along the fill hose for a kink. 3. Rinse the small screen inside the hose coupling. 4. Dry the base and the cabinet floor if they are wet.

! Why to stop there

Four different problems share one letter, so the right repair depends on which one is happening.
Water in the base can reach wiring and flooring.
Resetting by pressing buttons does not work, which tempts people into repeated tries.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

E:01Bosch Dishwasher E:01: Cycle Ended Early, Heater Relay or Pump Unconfirmed E:30Bosch Dishwasher E:30, Voltage Too High and the Machine Shut Down E:31Water in the Zeolite Container - Bosch Dishwasher E:31 2HBosch Dishwasher 2H: Long Cycle Warning on Older Displays 1Bosch Dishwasher Service Test Result 1: Aqua Sensor 2Bosch Dishwasher Service Test Result 2: Heating Group 4Bosch Dishwasher Service Test Result 4: Water Filling 8Bosch Dishwasher Service Test Result 8: Temperature Sensor

FF questions

Why can I not clear the F code?

Bosch built it to stay until the problem is fixed. Pressing buttons or unplugging will not clear it, since the machine detected something wrong with the water.

Is this the same as a leak?

It can be. Water pooling in the base is only one of the four readings. Shut off the supply, dry the area, and let us find out whether a leak or the inlet valve is responsible.

Is an older dishwasher worth fixing?

Often yes, because fill problems are usually valve or hose repairs. We tell you what we find first, and you approve a written price before any work begins.