StanZZZ wrote:
A couple more thoughts on this topic. When the unit was failing on high fan cool the fan motor was up to 160 degrees when it failed. Right after failure it was at 170. Thats the highest reading I took using my infrared thermometer.
I still have a setting for Heat Pump on my mode list in the CCC stat. I checked the dip switches and even turned the heat pump one on and off but its still there. I'm just going to ignore it.
HAVE you done the RESET on the Wall Tstat. THIS IS THE ONE TIME DOING A TSTAT RESET FIXES A PROBLEM!!!!!!!. The reset looks at the control boards and the DIP switches and only recognizes the switches that are ON and removes the other indicators. The yellow wire is NOT used on an AC. It is ONLY to run to the HP reversing solenoid. THAT is why it is capped OFF. Removing from the board does nothing. Dometic redesigned the CCC2 boards to do 2 things that the 5 button system could NOT do.
1. Get 3 fan speeds(that yellow wire)
2. IF the Reversing valve system fails, the CCC2 defaults to COLD air. The 5 button, when the reversing system failed defaulted to HOT air. There is logic in why they sometimes redesign systems. Doug
PS, you CANNOT use a multimeter to check for voltages and connections on the AC control boards. It will not yield results. You have to use a 60 watt light bulb assbly with 2 alligator clips.