Found the problem quickly and I got a nice education session out of it to better help myself in the future. Really nice and friendly guy.
Response from Bartlett Heating & Cooling:
Thank you for the 5-star review, John! All of the Bartlett HVAC team are continually trained, so you will always get the best of the best. You spend more time in your home than we do, so we are always happy to inform you on the inner workings!