If your Nespresso machine stops brewing mid-cycle, it is usually caused by an empty water tank, air trapped in the water system, a blocked or incorrectly recognised capsule, or a machine that requires descaling. Check that the water tank is full and correctly fitted, ensure the capsule is compatible and undamaged, and clean away any coffee residue from the capsule chamber. If the machine continues to stop before completing a brew, run a cleaning cycle followed by a descaling cycle if required. Persistent interruptions may indicate a pump, flow or capsule recognition fault that requires further diagnosis.