Aircon regas ?

[Russp]

After my earlier thread about air-conditioning not working I've now replaced the fan and resistor.
I did not disturb the air-conditioning circuit and the fan is now working but its not blowing cold.
It had a regas a few months back and was working fine until the fan went
As the system probably overheated before the problem was found , will it need regassing again or could the condenser be at fault?