What F3 Means
Bertazzoni's own use & care manual lists F3 as continuous water input — the dishwasher isn't stopping the fill when it should, meaning water keeps entering the tub past the point the control board expects, with real overflow risk if left unaddressed.
Common Causes of F3
- A stuck-open water inlet valve
- A failed water-level or pressure sensor that isn't signaling "full" to the control board
- A control board fault failing to close the inlet valve on command
🔧 One Safe Check You Can Try
Close the water shutoff valve behind the dishwasher immediately — Bertazzoni's own manual instructs exactly this before contacting service, since this fault means the machine currently isn't stopping its own water intake.
⚠ Why You Shouldn't Go Further Than That
- This code exists because water is actively continuing to enter the tub — leaving the supply valve open while you investigate risks an overflow onto your kitchen floor.
- A stuck inlet valve can be under line pressure, and disconnecting it without shutting off the supply first can spray water into the machine's electronics.
- Forcing a valve that won't close can damage the valve body, turning a repairable fault into a full valve replacement.
- Continuing to run cycles while chasing this yourself risks the kind of water damage most homeowners insurance treats as a maintenance issue, not a covered loss.
- Reaching the inlet valve typically means partial disassembly, and that access alone is a common way remaining warranty coverage ends.