I completed diagnostics and found that the client wired in a eco bee but it’s wired incorrectly at the furnace. With clients approval rewired system and had to add wiring for the ac. After wiring the system the ac was on but delta T is at 12F. The system has a leak, I gave the client the options of refill, find and fix leak or replace ac or whole system. Client will call us when they are ready System will not keep up and will freeze if ran for a long time.