re: AC went out, need advice on what' is being recommended

quote:

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whole unit as it's an old r22 system

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If you still have an old r22 unit, it's probably better to replace the whole thing now. If you don't you're probably just kicking the can down the road another 5 years at most, and that's assuming you don't have a leak in either or both sets of coils.

On the gas furnace, If the companies you got quotes from suggested you keep it after an inspection of the unit, keep it. If they didn't inspect it, I would have that done before deciding. Get them to quote you a new furnace as an option, either way.

Trane is a good, reliable brand.