E04
Rosières Overfill / Pressure Switch Fault

Washer overfills or shows E04 and attempts to drain immediately after filling; may also show water in the drawer or leak from door.

Advertisements

Safety Warning

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.

Advertisements

Possible Causes

Blocked pressure chamber or hose, Faulty pressure switch, Stuck-open water inlet valve, Wiring fault between pressure switch and control board

How to Fix / Troubleshooting

Safety first: Unplug the washer and close the water taps. If there is standing water, drain via the pump filter before tilting the machine.

Step-by-step checks:

  • Inspect the pressure hose: Remove the top cover. Locate the pressure switch (round device with electrical connector and a thin rubber hose). Remove the hose and check for soap scum or sludge. Blow gently through the hose toward the tub to clear blockages.
  • Clean the pressure chamber: The hose connects to a small chamber on the side or bottom of the tub. If accessible, remove and clean this chamber of detergent residue that can trap air and misread water level.
  • Check the inlet valve: With the machine unplugged, inspect the water inlet valve for signs of sticking or internal leakage. If water continues to flow into the drum when the machine is off and taps are open, the valve is stuck open and must be replaced.
  • Test the pressure switch: If you have a multimeter and service data, test the switch contacts while gently blowing into the pressure port; you should hear clicks and see contact changes. No change indicates a faulty switch.
  • Replace faulty components: Fit a new pressure switch or inlet valve as required, ensuring hoses and connectors are secure and correctly routed.

Note: Overfilling can cause serious leaks; do not continue using the washer until the fault is resolved.

Advertisements

Repair Difficulty

Hard 4/5

Required Part

Pressure Switch
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements