Hi all I had a new A/C system installed back in December, here in South Florida. The old system was a 3T system and according to the guy who installed our new one, was undersized for our 2000sq ft 2 story home. So he put in a 3.5T system (Rheem, super noisy) and everything has been fine during the cooler months. Fast forward to now, and this thing can't get below 77 during the day. It runs all day long without switching off until it finally starts to drop at night. It will take until 2am or so to get to 72deg. Our old system could maintain 73/74 during the day quite well. Since I work from home, I also noticed is way more humid indoors. Called A/C guy out and he measured the vents including at the condensor which sits outside our bedroom on the 2nd floor. These readings were: 52deg at the vent and 72deg at the condensor unit intake. Is this a normal range? Aside from that not checked for leaks, but we do have tinted windows which should be helping to keep it cool. Any help/insight appreciated.

Hi all, thanks for checking out my post. I have been having this problem for a week now. I originally had a service tech out and he let me know the capacitor and fan motor were bad. I opted to replace them both myself. After replacement of both, the condenser fan still won't fire up without a stick push. I have tested the new cap and get the appropriate values (80 & 5, dual run). I've ohm tested the motor and it checks out. I've taken the contactor off and tested the resistance between the low voltages and get 8.1 (normal). What else would prevent my condenser fan from starting up? The only thing I haven't tested is the amp draw. I have tried two brand new motors and caps with the same effect. I have also tested a temp sensor in the unit and get about 1400. Does this sensor have any impact on condenser motormotor start up? The AC runs fine with condenser fan stick push started, but once target temp is reached, and AC shuts off, the fan won't start again without support. The motor is a single phase three wire, black is going to line 1, white is going to terminal 2 and brown is going to capacitor. Any assistance would be greatly appreciated!