Display shows E07 and the machine leaks steam or water around the top of the capsule or filter area.

Safety first: Unplug the coffee maker and allow it to cool completely. Steam under pressure can cause burns.

Steps:

• Clean the coffee outlet: Remove the capsule holder or filter basket. Use a fine needle or cleaning tool to clear the small outlet holes in the brew head and spout.
• Descale thoroughly: Run a full descaling cycle with Tefal-approved descaler. Overpressure often results from scale restricting flow in the thermoblock and brew head.
• Inspect gaskets: Check the upper brew head gasket or O-ring for damage, flattening, or coffee buildup. Clean it with a damp cloth. Replace if cracked or hardened.
• Check overpressure valve (advanced): Access the internal hydraulic circuit and locate the overpressure valve (small spring-loaded valve near the pump or boiler). Ensure it is not clogged with scale. Rinse or replace if necessary.
• Reassemble and test: After cleaning and descaling, reassemble and run a test brew with water only. If E07 or leakage persists, the overpressure valve or thermostat may need replacement by a technician.