The reason the NEW tstat and boards will not work is a simple fact that Dometic decided to make a HP reversing valve failure to default to COOL instead of Heat. They also allowed the New 12 button to have 3 fan speeds on Heat Pump when they only had 2 speeds before. And the tstat is programmable. The reason to update to a 5 button, when they did that 13 years ago was to fix a failure of HP units freezing. The original 4 button did not have a Freeze Sensor For heat Pumps, Cool only units AND to have a ZONE button(hence the 5 versus 4 button). They had a LOT of RV'ers that had no clue how to change Zones on the 4 button. Now, I AM a highly qualified factory trained Dometic Service Technician, with 34 years of working on RV's AND Dometic products. I am also a Master Certified Technician.
I never insulted you. I pointed out your mis-info on what a reset does. I will tell you that, the remote sensors CAN have a fault IF the sensor bulb has the plastic wire loom pinching it behind the wall cover. That pressure can cause intermittent sensing. The wall tstat CCC can also have a problem if the area it is mounted at is on a wall area that the backside is NOT insulated properly--especially mounts on the side walls with no insulationor by a refer cabinet---that causes erroneous readings.As you stated, the BEST way for the CCC tstats is for EACH Zone to have a remote sensor located in an area that only senses the correct inside Zone temp. A LOT of OEM's fail to do that and then Dometic gets the blame. For instance, I had 1 sensor mounted over a LCD TV. LCD TV's generate a LOT of heat. We had to relocate it. I have fixed HUNDREDS of Dometic CCC systems over the years(Correctly). There is probably no one, including Dometic, that knows as much about the CCC system than me. There is no way I would charge anyone $125 to rebuild a 4 button. I would rather have them pay the online Dinosaur guys that $75 for them to rebuild it. They can warranty it, I will not. BTW, the 5 button tstats do not seem to have the problems with internal contacs that the 4 button models have. Doug
Dometic support does NOT stink. They ONLY support authorized trained Technicians, They do Not support retail customers. If your "trained Dometic man" has a problem with Dometic support, I would think it is because he has a lack of knowledge and expects Dometic to figure out his problems instead of him having the knowledge and experience to do it himself.
You just joined. I suggest you look at some of my posts over the years before you try to argue with me.
