my 86 944 lux uk car has no cool air when turning **** on heater control. the small plastic clips underneath have been checked they seem. ok also my main de-mister front switch and re-circulating air switch both r not working? have fitted a heater control panel from a 1990 model which i have been assured was working but still nothing in my car,. thinking maybe an electrical fault from my car? any help would b greatly appreciated regards mark mcallister glasgow scotland..[&o]this car does not have a/c

 

I would check your vacuum line to the heater control valve, and the 2 at the firewall. They like to pop off.