I purchased this home in august this is my first ever experience being around a heat pump. The outside unit was dead when I purchased the home. It was replaced with a Payne condenser unit. (4 ton) The air handler is a goodman (ar48-1). The issue I am having is that outside unit will come but the air handler will take over 10 mins to engage. Well by that time the temperature has dropped 2-3 degrees. Then once the fan engages it will run to try meet the set point. When its in the upper 20's this will cause the aux to engage.
I can tell the blower relay has been replaced at one time. What can I do to fix this issue. It is running so inefficient to me?