I'm experiencing a problem similar to this one: the indoor controller has power but it can not retrieve data. I used a set of jumper wires at the outdoor panel to the indoor controller and it still did not work so I think I'll have to replace the indoor controller pc board. By the way I think it may have been damaged when I installed a new salt chlorinator pc board last year. I may have forgotten to turn off the main circuit breaker to the entire pool system. Can the indoor controller pc board be repaired? A new one costs around $550!