Nespresso coffee machines are designed for simplicity and consistency, but issues can still arise, particularly with water flow, capsule extraction, or heating performance. Common problems include the machine not dispensing coffee, leaking water, flashing lights, or producing weak or incomplete shots. These faults are often caused by blockages from coffee residue, limescale build-up, or issues with capsule piercing and water pressure. Because Nespresso machines rely on precise flow and pressure, even small restrictions can affect performance. Regular descaling and cleaning are essential to maintain proper operation, especially in hard water areas. In many cases, simple maintenance will resolve the issue, but persistent problems may indicate a fault within the pump, heating system, or internal seals that requires further diagnosis.