Baby son bedroom in the back doesn’t not get enough airflow / insulation in room outta all rooms will reach 75 but baby room stay around 80 First options is to try to insulate the house more if that doesn’t work we will move forward with adding a return or double checking that flex isn’t kink or isn’t leaking air in attic if it is not leaking in attic, we will move forward with either doing our addition of a return or adding dampers which we could re-dark the airflow to help more efficient in the back bedroom maintenance was done. Everything look good unit that’s closest to the bush was kind of dirty on coils, but no problems with pop fuses or any electrical problems.