Mosfet not working

Machine: costum frame k40

Board: mini

Firmware: _Smoothie

Hi i tried to wire an air solenoid to the bigger fet
In pin 2.7 and when i send command 106 or m107 nothing changes
Ive powered the fet with a 5v transformer.
But i always get the 5v on cannot turn it off.

Set the fan enable to true
And set the pin to 2.7
Any help?
Thanks

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