dometic ccc wall thermostat
my dometic CCC 2 wall thermostat developed a code 3 last night and my system shut down. woke up this morning and system is working perfect... what caused it and does it sound like my thermostat is...
Forum Discussion
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
