Air Con+demist

[ste1]

hi again, just been messing around with the air con tonight and the climate control and not sure if the air con is working.

swith the auto button and there does not seem to be a drop in engine speed or sound.

pressed the demist button on the control panel and noticed that the window heater button lit up at the same time and off again when i pressed the air demist button again, not sure if it done this before. temp was about 9deg cel,

tryed it a short time again further down the road (temp now 10.5 deg cel and the heater light did not come on so is it that the heated windscreen comes on at the same time as the demister if the temp is below a certain level.

 

many thanks

steve