Does the condenser need to be replaced when replacing the air compressor? Replaced the compressor.It's blowing cool air and not cold air. Mechanic couldn't find anything else wrong.

I would need more info about the problem like what the pressures are and if there are codes in the climate module. If the compressor is bad you need to pull and inspect the orifice tube for metal debris. If there is debris in the screen you will need to replace the condenser and thoroughly flush the system or compressor failure will occur.