residential ac repair

The AC turns on and I can hear the fan blowing, be that as it may, the air arising out of the vents isn’t cool.

Worked fine last year, yet this year it’s having issues.

We opened up the AC strangely since we bought the house and took out a channel that was presented backward and besides absolutely black.

Presently made a pass at replacing the splendid indoor controller with a dumb one, at this point, it didn’t help.

Various settings:

The house is correct now scrutinizing 30C, FAN is set to Auto (various decisions are CIRC/ON), I’ve set it to HOLD 21C for eternity.

Something different I could endeavor or would it be a smart thought for me to call a residential ac repair?

Anyone got an expert they need to propose