mymannate

I am supposed to have my system checked every 6 months but I haven’t heard from them in over a year. I had to hire someone else to check the unit outside. I believe they are supposed to check the unit in the attic as well due to the lack of flow into one room. The same room that has the wall unit. I believe the vents are not working properly in the room. But if I turn it up, all other rooms become too hot or cold. Thanks for your input to this issue