Lots to read on the search by in the frequently asked questions section.I found one of the pumps that was working and disconnected the wires and then hooked them up to the one that did not work. If it still does not work, I know it is the pump. Mine had the removable cartridge so it was easy to swap. I just replaced 2 on my Puma which is an 06 as well. I also had a bad bilge pump. The float switch was stuck so when it was on automatic, the light would light up but pump would not run. Replaced it witha a flaot that there is a ball inside. When the water rises, the ball rolls back and makes the connections. Water drops and ball rolls back.Not sure if that helps or notJohn