I've been using the Total Control System for about 2 years and it has worked pretty well for me (I live in Phx). A couple days ago I made my normal rounds and noticed that the PH was high but the acid pump was not turning on like usual. I did some testing and the acid pump doesn't even turn on if I "Prime" it from the control menu. I've put an electrical tester on the Acid pump terminals in the controller panel to test if the issue is with the controller or the pump. Again, I tried to Prime the acid pump but this time I tested for an electrical current at the terminals in the controller but nothing. So that potentially eliminates the pump, PH sensor and communication cable. Any suggestions on what I should test next? Thanks for any help!