303,
The pump does not have anything to do with the communication to the cell, but at least it shows that not all communications are lost.
Tell us if you have an External Power Center for your cell, or is it part of an EasyTouch automation system.
Just to make sure I understand. When you use the ScreenLogic app, and change the cell's output, you see a corresponding change at the cell's sanitizer lights. Is that true?
Does the cell report the salt level back to ScreenLogic?
When you put your EasyTouch into the Service mode, do all the lights on the SWCG turn off??? (They should...)
Thanks,
Jim R.