On 09/10/2019 17:26, Harry Bloomfield wrote:
After serious thinking Thomas Prufer wrote :
Naah, it's the current that creates the magnetic field.

The current operates the solenoid, but the solenoid is not able to
operate the valve, the solenoid is only able to retain the valve in the
open position. The appliance operator provides the effort needed to open
the valve, the solenoid can then latch it.

Interesting