A/C problem

I have a 2017 cedar creek 5th wheel with 2 dometic a/c units zone 1 is model # H541816AXX1CO Zone #2 is model# 641815CXX1CO I had a code flash on my CCC2 thermostat that I lost comm. with zone 2 it was a disconnect at the zone 1 unit at 1 of the telephone type connectors . I FORGOT to turn off the CCC2 thermostat before I pushed the MODE and ZONE buttons. Now I have nothing displaying for zone 2 . Is there a fuse that I blew or something else. Zone 1 works fine. Thanks for any help.I also changed the telephone type connectors at the zone one unit.