Heat and air conditioning

Hi all, I had the very same issues with the air
conditioning and heat coming on whenever it
wanted,  I did the same as most of you and
recharged the ac and what not.  Come to find out
on my own that it's the blower motor having dead
spot issues. I banged on the dash and it would
start blowing.   It's worth looking into because
before I figured it out I was reading all of the thread
questions and I had all the same problems! So
again,  blower motor