Machine displays B1 and the descaling indicator remains on even after descaling.

Safety first: Follow the official descaling procedure for your specific Lavazza model.

Step 1 – Repeat descaling cycle correctly

• Fill the tank with descaling solution as specified.
• Start the descaling program and allow it to run without interruption until the machine indicates completion.
• Ensure you perform all required rinse steps with fresh water.

Step 2 – Manual reset (if supported)

• Some models require a button combination to reset the descaling indicator (e.g., holding two buttons for several seconds). Refer to the user manual.
• Perform the reset sequence exactly as described.

Step 3 – Check flowmeter function (advanced)

• If the machine does not detect water flow correctly, it may never register the descaling cycle as complete.
• Inspect and clean the flowmeter and hoses as described for error A1.

When to seek service

• If B1 persists despite proper descaling and reset attempts, the control board or flowmeter may require professional diagnosis.