Upon arrival I found an air ease split heat pump. Went over everything on unit, found dirty coils indoor and out, filthy blower wheel, every supply line in attic is ate up bad from mice. Supply trunk is hard pipe and not affected. Air handler in attic has a sump pump in the drain pan, need to get proper drainage. Heat pump is performing as a heat pump should, electric heat kicks on as needed. Good temperature difference when only in heat pump mode. 2 degree imbalance at tstat sets system into electric heat. Needs serious cleaning indoor and out to perform at its ability, refrigerant pressures not reliable with coils like they are with improper airflow. 5 six inch flex supplies 2 seven inch flex supplies. Will quote all work and email estimates in morning. Waived diagnostic if he goes forward with repairs. Emailed invoice for diag. Told him not to pay until after I talk to him tomorrow about options. Wants price on package unit for crawl space also.