I completed spring tune up on a Tempstar air conditioner. I visually inspected the furnace. I inspected the evaporator coil. I checked the temperature difference across the coil. Checked voltage and amps. Inspected heat pump. Checked refrigerant charge, voltages and amps. I rinsed the condenser coils with water. I cycled and monitored the system. I recommended once replaced that the unit be moved farther from the home due to the exhaust for the power vent water heater blowing on the condenser coils, causing some damage. Operating normally at this time.