air conditioning

[NewKid]

Im new here, didnt find any threads that answer my question so im just gona ask.
I recharged my ac but when i was recharging it the whose would leak from the top by the blue cap. The ac did
Blow cold but not as cold as i expected. My question is if the whose is easy to replace can some one show me? Or if thats not the problem any suggestions?..

 

[RonJ]

If the refrigerant line has a leak, then replace the line.

Afterwards, replace the receiver/dryer, place the system under a deep vacuum for an hour, and then recharge the system with the proper refrigerant weight along with the proper oil.

If you have no clue how to do this correctly, then pay a professional.