Solenoid stuck

The 3-way solenoid valve fails — either stays closed (no brew) or stays open (constant drip from the group, no pressure release).

Why it matters — Common on machines that haven't been backflushed regularly. Coffee oils accumulate and gum the valve plunger.

Good to know

• A weekly detergent backflush prevents most solenoid issues.
• If the valve is stuck, cleaning (Cafiza soak) sometimes restores it. If not, replacement is straightforward — solenoids are inexpensive parts.

Related: Solenoid Valves