dometic ccc wall thermostat

thanks for all your input... i totally agree the thermostat
must be taking a dump..... will replace ...

Halmfamily wrote:
Turn your t-stat off, both zones. Press and hold the zone and mode buttons at the same time. This will reset your t-stat. I've had to do this the last 2 trips out and will have my dealer replace it tomorrow.

You also should have thermostat turned off, hold zone and mode buttons while turning thermostat on, this will reset.

Terry.

Turn your t-stat off, both zones. Press and hold the zone and mode buttons at the same time. This will reset your t-stat. I've had to do this the last 2 trips out and will have my dealer replace it tomorrow.

E3, Is a shorted INDOOR temp sensor. So, either the wall tstat(CCC2) is the indoor temp sensor or the system has a remote temp sensor on a wall or ceiling. It depends on how many roof AC units you have and where the CCC2 is located. Usually Zone 1 AC the CCC2 will be the indoor temp sensor and the Zone 2 will have the remote interior temp sensor for that Zone. But, if the CCC2 cannot be mounted where it can sense the Zone 1 indoor temp they will install a remote temp sensor for Zone 1. Yes, if the CCC2 is the temp sensor, then it has a fault and needs replaced. Resets do NOT fix operational/error problems on Dometic CCC systems. Doug

try the reset. Error 3 is a sensor issue.