Setra S317 UL v1.3 in the 1st post - [09/10/2016]


  • I have the same problem. The buttons don't work. It's the same with the S319UL. Oddly enough, the button to turn on the AC worked the first time I tried but never worked again after that.

  • The aircondition works just if the outside temperature is higher then the choosen inside temperature. It cools down the bus then.
    If its colder outside the AC uses air from outside to cool down. So its normal. And it also just works if the enigne temperature is more than 50°C.


    So make outside temperature on 30°C and 21='C' inside and turn on the AC. Wait a bit and u will see it works.

  • The aircondition works just if the outside temperature is higher then the choosen inside temperature. It cools down the bus then.
    If its colder outside the AC uses air from outside to cool down. So its normal. And it also just works if the enigne temperature is more than 50°C.


    So make outside temperature on 30°C and 21='C' inside and turn on the AC. Wait a bit and u will see it works.


    Engine temperature criterion just for heating (and it's real). Other is right.