Quote:
Originally Posted by Wayne 962
The code is indeed 44 right now. Nothing else either. I bought some stuff at the hardware store to clean out the vents. The trouble is, I found some stuff down there that looks like it might have asbestos in it, so I FedEx'ed it to the testing lab in Los Angeles and I'll have them check it (by Thursday morning). Then if that comes back all clear, I will crack open the return pipe and tape a filter to it and suck air from the basement area and see if that makes a difference. I'll also clean all of the dust out too while I'm there.
-Wayne
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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.