Inspected both units and found them 36 years old single stage or system downstairs in a 3 ton system upstairs Upstairs heating system was replaced about seven years ago, along with the air ducts There is a flight trip of water upstairs at the air conditioning because the member upstairs is 36 years old in the metal is rusted out Both units are cooling by proper temperature splits at this time however they are CFC and that type of gas is obsolete no longer manufactured anymore Recommend for the most rebate to replace those systems and convert to heat pumps. Long-term solution to the owners advised them that the prices are going up based on the refrigerant changes that are happening currently Collected $49 with a Visa card