Dometic Comfort Control Center Codes

[lewster]

Originally Posted by BoomersRock

Our AC also died in middle of night. After reset we have error code EE. Tested fuses including one in unit, all seem well. We purchased a replacement CCC. If we install to see if that is the fix will it be damaged by other problems?

The 'EE' code on the CCC means that there is a communication error between the CCC and the relay board inside the upper A/C unit. This could be a bad data cable, a bad data cable union, a bad fuse on the relay board, or a bad connection. They are usually not easy to track down.

You can start with a new CCC but it usually does not solve the problem. I would check the fuse on the relay board first, then try to connect a new data cable from the CCc to the upper unit. You will have to remove the air distribution box located under the unit inside your trailer to access the connections for this.

If the new cable works, you will then either have to replace the data cable or
try to find out why the existing cable failed and replace that.

[BoomersRock]

As a followup, the relay and one of the wires were bad. Repairs: $500Thanks for the help.

[RRS4]

The Comfort Control Center 2 Thermostat in my 2014 International occasionally reads 32 degrees for the number 1 AC unit. When this occurs, the bedroom AC will not come on. I wouldn't either, if it was actually 32 degrees inside. The problem will go away on its own, with time or travel. It seems to me this room temp sensor must be inside the CCC2 which is on the bedroom wall. Is there anything other than the CCC2 that can cause this?