I have a Bryant heat pump outside and a carrier air handler in the attic.
(Not sure the sizes, but I DO know the outside unit is a drum?? or a roller??? type as
opposed to some other type. My installer said it was "better" than the other type,
whatever that is).
Anyway, it has been in for 2 years now and about 2 months ago (late Nov?), the heat pump began
to GROAN quite loudly when it starts up. Other than that, everything seems OK.
Is this a problem? Should I get this serviced? I DID talk to the installing company and
he said "sometimes when its cold that can happen" and didn't seem too concerned, but