Have HVAC Questions? Ask an HVAC Expert for Answers
Pressures are going to vary slightly by unit, but ideally around 72psig and 250 psig. with a temp drop across indoor coil of 18 to 20 degrees.
1.Have you checked to verify indoor and outdoor coils are clean as well as filter?
2.Have you taken a temp drop across indoor coil?
3.Is large copper line "beer can cold?"