Laguna PowerJet 3000 just stopped

[lee siggers]

Hi. The issue I have is with my pump. The pressure filter works a treat for me, apart from the uv as previously mentioned. In all honesty for the size of my pond the ease of maintenance of the pressure filter is spot on. Really can't complain. Turn the top knon to divert to drain, 6 to 10 pumps on the handles, let it run through until clear and bobs your uncle clear sponges again. Once every summer i clean the bio balls and replace them end of winter and it's been a dream for 4 years.
Hoping to get inside these 2 laguna pumps I have tomorrow. Will update. Any recommendations on previous questions would be appreciated.