Washer-dryer combo displays E19 and the pump runs continuously even when there is no water in the drum.

Safety first: Unplug the unit before inspecting hoses or the control board.

• Check drain hose height: Ensure the drain hose is installed at the correct height per the manual (usually 80–120 cm above floor). A hose that is too low can cause continuous siphoning.
• Verify hose routing: Avoid airtight seals at the standpipe; allow an air gap to prevent siphon.
• Inspect water level sensor: Follow the E8 procedure to confirm the pressure hose and sensor are functioning correctly and not falsely indicating water in the tub.
• Control board relay (advanced): If the pump runs whenever the machine is powered, even with correct hose and sensor, the pump relay on the PCB may be welded closed. Board replacement is typically required.