My Easytouch 4 LED display was scrambled, so I got a new motherboard. I very carefully duplicated the connections on the new motherboard. However, now the Intelliflo VS pump does not turn on from the Easytouch F1 button. F2, F3, F4 work fine. The Intelliflo appears to have power because its display says "Display Not Active," which means it is communicating with the Easytouch, right? The pump did not turn on at the new schedule I set, either. My Intellichlor lights up when I press the F1 button. Any ideas on what's wrong? I reinstalled the old motherboard to see if the new motherboard was the problem... same issue. No response to F1 button (other than the Intellichlor lighting up). PS... I have read that I may be able to replace the LED screen on the old motherboard... may still attempt.