Paid close to $7000.00 for the unit worked fine for a year then it's cost me money every year since unit is 4 years old. Parts breaking no parts available. Just a piece of complete and utter junk. Their customer service deny they make the unit I got the number off the manual they refuse to take accountability. Worthless company they should take American out of their name. User's recommendation: Buy from someone else who stands buy their products.