Bob is a service technician who is well trained and nationally certified. However, he sometimes suffers from the same confusion that all technicians occasionally do - the facts that he gathers may or ...

Troubleshooting and servicing refrigeration and air conditioning systems can be a challenging process for entry-level or experienced technicians. Regardless of your experience, it is essential that ...

Q. I know I don't know too much about this type of thing, but I do know when something's wrong. And something is definitely wrong with our furnace and air conditioner. I came downstairs a few days ago ...