Upon arrival spoke with tenant and started checking over system. Coil is very rusted and got small hits for leaks on coil. Blower is dirty. Wires all tight. Turned system on, system is heating with emergency heat. Went outside, contacter is pitted, capacitor checked within specs. Refrigerant pressures are low. Compressor Megohmed green. Disconnect wires are tight. Priced up issues I found with system and spoke with home owner about getting more options on how we can help. System is running at this time.