Quote:
Originally Posted by cabmando
I'd be a bit surprised if it's asbestos. That stuff hasn't been used in years. I don't know how old the system is or the home, but it would be unusual for there to be asbestos with a system that "new" (meaning Carrier MVP Infinity and all the flex duct) Take a look at that troubleshooting guide I linked. It will tell you what to look for with a code 44. I think the codes and procedure for correcting each starts at page 13 IIRC.
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The material is some type of insulation between the dirt and cinder blocks around the ground near where the hoses are - it's not part of the system. The house was originally built in 1960 and then completely remodeled in 2001, but this piece of material looks pretty old and original (it's lining the foundation).
I have that troubleshooting guide printed out - it would seem to go through the motions of testing the system, and then says "look for a dirty filter and/or blockages". Which led me to look at the intake...
-Wayne