(G) air con not working

Had my air con on my mk2 punto recharged today hasnt worked since i bought the car changed the low side pipe. It still dosent work the light on the fan switch lights up and the rev counter drops momenteraly but no cold air. Ive searched about on the forum and Ive noticed my fan dosnt work either only when the engine gets hot. Ive also noticed the compressor dosent engage either can anyone tell me which fuses and relays to check and where they are?

the fuse for the air conditioning compressor is F19 7.5amp its n the fuse box on the engine

the air con runs of a pully as well and the pully has a clutch in it so the clutch might be gone in it

if the revs drop that indicates the pump is engaging but realy there could be any number of reasons why it isnt working

for example
1 the valve to alow the build up of presure could be faulty
2 when it was recharged there may have bee the wrong amount of refridgerant used
3 mabey the flap that swiches between cold and hot is brocken you never know
4 there may be a leak an all your refridgerant has escaped
5 compresor not working but this is normally acompanied by bad bad noises

so realy if you want i fixed take it to a qualified air con technition or beter still a main dealer

and not quick fit cos they have no idea what there doing with aircon i have seen a few people go there and have thair aircon bugered

try going under your bonet and see if your aircon pipes are cold atall