Pump runs but no water comes from group head; loud buzzing from pump.

Safety first: Turn OFF and unplug before disconnecting hoses. Protect surfaces from water spills.

• Check tank and hoses: Ensure the tank is full and properly seated. Remove and clean the tank filter. Straighten any kinked hoses.
• Prime the pump: Fill the tank completely, then run the pump with the steam wand or hot water tap open until a steady stream of water flows. This can clear airlocks.
• Backflush the intake (advanced): With the machine OFF and unplugged, disconnect the hose at the pump inlet and gently draw water through with a syringe to confirm flow from the tank.
• Check inlet solenoid (if fitted): On some Lelit models, an inlet solenoid controls water to the boiler. If scaled, it may not open. Descale or replace the inlet solenoid valve if blocked.