Quote Originally Posted by airefresco View Post
I donīt want the client to go to someone else and they just fit a new outdoor unit, which is what will happen. What would you do in my situation?
Fit the new unit before someone else do, because, if you are going to learn "basics" on that unit, customer will probably feel what is going on, and find another more overweening guy for that job.

Of course, if he have choice!