For the past 4 years at least 4 techs have come to the house unable to identify and diagnose the issue with air flow. Tyler out performed all these and was able to get to the source of the problem which was collapsed duct work. If the other techs had his commitment to service the problem would have been solved 4 years ago. In any case, we’re grateful for his willingness to get into tight spaces and find the problem. We now have incredible air flow that will help the unit last longer and make our home much more comfortable. Thanks Tyler!