Customer has 9 y/o Ameristar heat pump system that operates for whole house. System was not wired correctly to operate in cooling. Corrected thermostat wiring. System is currently working. Pressure levels were normal. Condenser electrical components are fair. Water protection has failed and was not wired into system. Drain line has no p-trap installed for negative pressure system. Recommend UV BlueTube to target and prevent biological growth. Customer should consider HomeCare program for system maintenance.