I have had a gyre 150 with the old style controller that has been working on and off for about a year. Out of nowhere, the controller has been blinking red and obviously, the gyre is now not running. I've tried to take it apart and clean it. No blockage and the rotors spin freely. I have also tried to replace the impeller and cannot find any issues with the motor itself. What other things can I try to get this back up and running. I have had more issues with this than I should and frankly, I'm overly disappointed with this product. This is the second replacement from coralvue.