Dometic CCC2 Thermostat No Power: Troubleshooting & Fix Guide 2024
Opened up my new-to-me 1960 Safari RV only to find the Dometic AC unit's CCC2 thermostat has zero power and I'm completely lost. The AC unit is getting 120V power, but the thermostat displays zero power. My troubleshooting so far:
1) The inverter works great with 13.9V at the battery
2) The AC unit is receiving 120 power
3) The "telephone" line is also receiving power at both sending and receiving ends
4) The thermostat is registering zero power
I'm assuming this is a thermostat issue and not a fuse problem. What could be causing the CCC2 thermostat to have no power when everything else checks out? …more
1) The inverter works great with 13.9V at the battery
2) The AC unit is receiving 120 power
3) The "telephone" line is also receiving power at both sending and receiving ends
4) The thermostat is registering zero power
I'm assuming this is a thermostat issue and not a fuse problem. What could be causing the CCC2 thermostat to have no power when everything else checks out? …more
