Arrived for ac check today. Stared at furnace and checked static pressure, it is passing. The supply side is having trouble moving air out. Motor amps are running a little high. Blower wheel was clean. There was a 16 degree temp split, which is low. A previous company adjusted fan speeds. While checking charge system was reading low. If fan speeds are adjusted charge needs to corrected. All electrical components are running properly. Today I added up to one pound of refrigerant and that was enough to make charge correct. There is now a 19-20 degree temp split. System is running upon departure. Thanks for choosing LBA.