In the last year the blower for ac and heat works only when it wants to…you can hear it blowing but nothing comes ouut the vents…some days , works fine, next day, nothing
Since you can hear the blower chances are a failing blend door actuator. Some are easy to get to and relatively cheap to repair/replace, others difficult therefore more expensive.
Could be your cabin air filter, if equipped, but doubtful in as much as lack of air flow should be consistent.
Thank you for the info…a mechanic mentioned the cabin air filter so my son changed it, no change…but we will look in to the blend door actuator…thanks again