No Air Con

[PROJUMPER]

Mercedes ML280 W165 08-plate

After having a fault with my heater/air con blower/fan pcb, I replaced the blower motor, now my air con is not working, not sure if this is just coincidental! any help would be greatly appreciated.

 

[Mike Smith]

Air con only works above a certain ambient temp. No idea what that it is on Mercedes but on my old BMW it had to be above 4 degrees.