Hi - I've had an Osmolator on a JBJ Nanocube since June of '08 and it failed once before and was quickly replaced (Thanks!) - now it's failed again - I think it's the controller, since the failure mode was to find it with the red "too low" LED on, but no pump action - I can get the "too high" alarm and LED to come on if I raise the float, but otherwise nothing. What to do next?