Since all this talk on heaters I thought maybe I could ask a question regarding my Titanium heater I got awhile back. It's not working and was wondering if it's the heater or the control unit. I had it in my wet/dry filter for a bit before it died, the light still works on the control unit to show me it's alive but I just don't know if I shoud spring for another heater or the whole shebang again... Jim