E19 error appears and the unit cycles the pump on and off rapidly.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty pressure sensor, Blocked return line, Air trapped in pressure chamber, Defective pump control circuit

Safety: Unplug the unit and depressurize by removing the clean water tank.

Bleed air: Refill the tank, reinstall, and run the unit while holding the trigger continuously to purge air from the system.
Check for kinks: Inspect the return or bypass hose for kinks or blockages.
Sensor cleaning: If accessible, remove the pressure sensor and clean its port gently with a damp cloth. Do not insert sharp objects.
Replacement: If pressure readings remain erratic (technician diagnosis), replace the pressure sensor.

Hard 4/5

Pressure Sensor

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