I had a Intelliflo VSP installed to save energy in my IG pool. After it was installed my Ecomatic ESC would not generate and remained in Standby Mode. Actually if I turned the ESC36 off the on it would generate until the pump turned off then it would go back to Standy mode. The pool store said it only generated at the high speed sweep mode, but it did not, so he sent out his installation guy to "fix" it, but all he did was reconnect the intermatic timer which didn't solve the problem. Now he shruggs his shoulders and says the pump is working correctly and can't help me with the SWG. Ugh.