I too am having problems and am quite disappointed. Especially, since my purchase was primarily based on Husky's brand reputation.
Only 4 uses and 2 seasons later, the gun started to leak. I took it apart, only to find that the molded plastic pipe inside the gun had developed a leak along the molding seam-line. It is quite surprising that a pressure washer gun would develop an internal leak after only 4 uses. I could understand, if manhandling the equipment would cause the equipment to break, but a internal molded pipe that breaks at the seams is a sign of poor workmanship and product quality.
As I poured through various forums, I learned that I am not the only one with this problem. I called the number listed above and the customer service person was quite surprised that I was having a problem at all. The best she could do was sell me a $22 +S&H replacement gun. I am disappointed that Husky would take such a position, when their brand messaging communicates durability and reliability. My experience so far confirms neither.
I would expect more from a brand like Husky, at a minimum recognize the workmanship problem and send me a replacement gun.