Quote Originally Posted by ar_hvac_man View Post
Is it trapped?
Yes.7" run then trapped 6".

Quote Originally Posted by ken heroux View Post
Install a clear plastic panel in place of the metal panel and look inside with a flash light to witness what is hapenning. Done this before and it works very well.
Love this idea! ken heroux

Quote Originally Posted by R123 View Post
You say customer is leaving doors open? Good luck.
That's how I feel. So far so good. No call back yet.