Vt aircon- no pressure

[clinker42]

Hey Guys, any aircon or VT experts here.
With the VT, is there a common place that leaks the gas. My aircon isnt working checking everything out and it has no pressure to open the presure circuit. Any hints on where to start.

Trevor

 

[xcop5l]

get an air con expert to put some gas in it and check it with either die or a sniffer