I cant switch on aircon. , I press the button , but red light cuts out as soon as I remove my fingure.

[Andy baggy]

I need some advice, when I go to switch on my aircon. I press the button. But as soon as I remove my finger the little red light goes out. 

[audia4b5kev]

have you turned them to cold   the heater fans   as soon as turn mine to cold   it is on

[Andy baggy]

Yes turned to cold. I guess its either out of gas or the switch is knackered. 

[Steve Q]

I'd get a regas abd leak test done, or a diagnostic check carried out to see if any fault codes flag up.