Last year, I received a NO COMM error that was believed to be a failed Pentair Spa Command unit. It was shot, the face had fallen apart, etc. Once I disconnected the Spa Command - problem went away. I've just now installed a new Spa Command spa side controller unit. All appeared to go well, buttons programmed, etc. Worked great for 24-hours, then the NO COMM is back. I've double checked all Com Port connections, everything is good. Once again, when I disconnect the Spa Command from the com port - problem goes away again. I replaced the wire run and all is clean, dry, etc. Ideas?
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