how difficult is it to replace the blend door actuator? on 2006 Dodge Magnum

compressor works fine and a/c has been recharged. however, the cold air is being disrupted by hot air.

Asked by for the 2006 Dodge Magnum
1 answer 1 comment
could be hard or easy depending on which one is bad. try for info
how many do they contain? thank you for your response