Washer-dryer shows E18 and stops; water level in drum appears incorrect for the selected program.

Safety first: Unplug the appliance and turn off water supply before working on the pressure system.

• Step 1 – Inspect pressure hose: Remove the top cover and locate the pressure switch and its hose. Check for kinks, splits, or disconnections.
• Step 2 – Clean pressure chamber: Follow the hose down to where it connects to the tub or pressure chamber. Remove and clean any soap scum or sludge that may block the air path.
• Step 3 – Reset sensor: After cleaning, reconnect the hose securely and run a rinse cycle to see if E18 clears.
• Step 4 – Replace pressure sensor: If the error persists, replace the pressure switch with a Caple-compatible water level sensor.
• Step 5 – Professional calibration: Some models may require sensor calibration via service mode, which should be performed by a Caple technician.