So I have this biowheel thats hooked up to my magnum 350 can filter and it stopped working about 2 weeks ago. I have cleaned out all of the tubes and made sure nothing is wrong with the biowheel itself, water still runs through it fine so there isnt any blockage. I looked at the trouble shooting section of the manual the filter came with but I have tried all of the suggestions and nothing seems to work. Can anyone help me?