Why my ac on lowest speed fan temperature is about 48 and at full speed fan 64-8 on 2003 Ford F-150

Ac on low fan speed, gauge read ok on both high and low ports, when fan full speed high port pressure go down (ac compressor is brand new)

Asked by for the 2003 Ford F-150
1 answer 1 comment
poss blocked condensor.both temps are to high,u may need to seek an insp from your mech
What is that and where is located? Is expensive to fix it?