Machine does not detect correct water level; may not fill or may not start; F10 displayed.

Safety: Unplug the appliance and close water taps.

Steps:

• Check pressure hose: Remove the top cover and inspect the small hose from the tub to the pressure switch. Ensure it is firmly attached and not split or blocked.
• Clean chamber: Detach the hose at the tub end and clean the pressure chamber of detergent residue and lint.
• Test switch: Use a multimeter to verify that the pressure switch contacts change when you gently blow into the hose (see F04).
• Wiring: Confirm continuity of wires from the pressure switch to the control board using a multimeter.
• Replace faulty parts: Replace the pressure switch if it does not operate correctly.

Tip: Route the pressure hose as originally installed to avoid kinks or low spots where water can collect.