E03 displayed; machine heats but stops mid‑brew, dispensing less coffee than selected.

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

Stuck flow meter wheel, internal scale deposits, broken flow meter wire, defective Hall sensor in flow meter

Safety first: Unplug the coffee maker before any internal work.

Descale thoroughly: Run at least one full descaling cycle to free the flow meter wheel.
Flush with clean water: After descaling, run multiple rinse cycles to ensure smooth flow.
Check wiring (advanced): Inspect the two or three wires going to the flow meter for breaks or loose connectors.
Replace flow meter: If the error persists and wiring is intact, the flow meter assembly should be replaced.

Hard 4/5

Flow Meter Assembly

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