Dishwasher shows E4; machine may continuously drain and not start washing.

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

Water leak into base tray, Stuck anti-flood float switch, Overfilling due to faulty inlet valve or pressure switch

Safety first: Unplug the dishwasher and close the water tap immediately.

Check base tray: Pull the unit out and inspect the base for standing water. Dry completely.
Inspect for leaks: Run a short fill while observing hoses, sump, and door seal for drips.
Float switch: Ensure the float moves freely and the microswitch is not jammed. Replace the Fagor float switch if necessary.
Inlet valve: If water continues to enter when the machine is off, the inlet valve is stuck open and must be replaced.

Hard 4/5

Fagor anti-flood float switch or water inlet valve

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