I have a rent house with 2 air conditioning units - 1 upstairs and 1 downstairs.The down stairs unit was not cooling properly and an HVAC contractor told me the air handler needs to be replaced. AHS Insurance will cover replacement of the air handler but the contractor will charge an additional $1000 for non-covered associated charges.
I am trying to make a decision whether to replace only the air handler or replace the outside compressor at the same time. I have talked to several different contractors and received different opinions regarding R410 and R22 issues.
One contractor told me that if I replace the inside unit with an R410 unit, he can use a valve to make it compatible with the existing outside R22 compressor. Another contractor told me that if I went that route, when the outside compressor fails, I will have to replace the inside unit at the same time (even though its R410). Help - I am mechanically challenged and trying to understand so I make a good decision.