SERVICE CALL FOR RENTAL PROPERTY: Upon arrival tenants stated The hvac system is not working at all. After complete troubleshooting I found system is in Poor maintenance conditions the Gas furnace unit Horizontal position at crawl space is 1986 model is 39 years old natural vent draft with standing pilot the blower motor is damaged blower wheel is highly impacted the burners compartment is rusted out that’s indication of possible compromised heat exchanger no safety’s to prevent water Damage. Check outdoor condenser unit Goodman 3 1/2 ton capacity 2005 Model r 22 refrigerant type which is already phased out by EPA check electrical disconnect box failed check contactor failed check condenser coil is highly impacted. COMPLETE SYSTEM ALREADY PAST LIFE EXPECTANCY FROM MANUFACTURE WHICH ARE 10 to 14 years. DUE TO AGED AND CONDITIONS I RECOMMEND TO UPGRADE COMPLETE SYSTEM. Refrigerant r 22 is no longer available. Recommend new system financed is available plus discount rebates an