I am completely stumped. Here's the situation: Easytouch indoor control unit is version 2080 - it will not connect with other 2080 panels (tested 2) - however it WILL connect with an older version 1050 control unit.
This issue came up after changing the salt cell.
Wires/connections all seem to be fine (hence it working with the 1050 - but not the 2x version 2080 boards).
I have tried resetting the EPROM - no good there.
I see no visible damage on any of the MOBOS either. Any ideas/ info requests?