The pump runs, but no water comes

Check the tank and prime it

The manual's checks come first, then a retailer's way to prime (1st-line).

1. Check there is water in the tank.
2. Check both silicone tubes are in the water and not floating, and that the tubes and "vacuum trap" are seated (the manual).
3. Open the tap and switch on the hot-water switch.
4. Wait for water at the wand. It can take 60 to 90 seconds; squeezing the tank tubes lets you feel the pump take water.
5. Close the tap and switch off the hot-water switch.

Force-prime the pump

An owner's method (dkaraboy), also in a Whole Latte Love article we saw only in summary. It is not in Rancilio's manual.

1. Open the tap and switch on the hot-water switch.
2. Fill a syringe or a turkey baster with water.
3. Push water into the intake tube while the pump runs.
4. When water comes from the wand, put the tube back in the tank, close the tap and switch off.

A steady hum with no water anywhere, which priming does not cure, is a failed pump: see the pump.

Rancilio Silvia V6: every job