I just want to say that I was in the garage today. And it seems like all the tubes and wires and the like between our air handler and our compressor look like they were replaced when we got our new components. Simply because they look like they have 5 years of dust on them - not 16.
We've been very happy with our A/C company and the companies that made our "stuff". OTOH - we have never tried to push our systems beyond their useful lives. So perhaps it's a little of them - and a little of us
. Robyn