A few meetings back I won a DC5000 in a raffle. I had put it to use on a 90g SPS tank.
It worked fine for a few months and suddenly stopped dead.
I emailed Adam at RLSS in Canada and explained my situation. He offered to ship a brand new one out free of charge, no questions asked.
It came in the mail today but it was the new model DC6000 instead. Lucky me!
This is the kind of customer service standard that needs to drive this industry.