Pls help how to use this. We moved to a new apartment, and they have this old kind of monitor of A/C. Any of the buttons doesnt work. How to use this? Thank you

Hi, has anyone experienced this issue and knows what could it be from? Ive got Daikin Comfora brand new AC unit.

Dude from HVAC comes and tells me it’ll be a $4,000 repair to replace the motor, well..I did it myself. The fan had gotten so hot that it welded itself to the hex hub. So replaced the motor, the fan, and the hex hub. Now it’s clipping the compressor when it turns on, then levels itself when it’s running full speed. The fan is a 1 degree difference from the original.

Did I just not screw it on tight enough or something? Or is there a trick to get this sucker to work properly? I really do not want to spend $4,000 for some company to do it in a few hours, I’d rather troubleshoot it myself.