dometic thermo prob
Hello, new to RV life and this forum. Recently my wife complains that our thermostat doesn't shut off properly. It did keep the heat on one time until we were cooking (way above set temp). [ dometi...
Forum Discussion
1. YOU DID WHAT:B
2. You cannot install a normal Tstat in place of the Dometic CCC system.
3. Those wires you cut are NOT regular tstat wiring. They are a 4 wire communication cable. The Tstat end plugs into the wall tstat. The other end will plug into the roof AC control board.
4. You MUST use a Dometic wall tstat. If you have a 4 button Doimetic you have to replace with a 4 button. BUT the 4 button was discontinued almost 18 years ago and no new ones available. The 5 button replaced the 4 button and IS available. The newest is the 10 button which is NOT compatible with your older control board unless your unit is newer than 5 years ago and may have the 10 button.
5. Odds are when you cut the cable end off you blew the 3 amp fuse on the upper AC control board. That is why you have no display when you spliced the wires back.
5. Now, since you did not state year/Model/Brand of RV and how many AC units, the wall tstat may NOT be the temp sensor. The Dometic system has the option of remote sensors and IF there is a remote sensor connected to the upper AC control board, the wall tstat will not be the temp sensor. Doug
2. You cannot install a normal Tstat in place of the Dometic CCC system.
3. Those wires you cut are NOT regular tstat wiring. They are a 4 wire communication cable. The Tstat end plugs into the wall tstat. The other end will plug into the roof AC control board.
4. You MUST use a Dometic wall tstat. If you have a 4 button Doimetic you have to replace with a 4 button. BUT the 4 button was discontinued almost 18 years ago and no new ones available. The 5 button replaced the 4 button and IS available. The newest is the 10 button which is NOT compatible with your older control board unless your unit is newer than 5 years ago and may have the 10 button.
5. Odds are when you cut the cable end off you blew the 3 amp fuse on the upper AC control board. That is why you have no display when you spliced the wires back.
5. Now, since you did not state year/Model/Brand of RV and how many AC units, the wall tstat may NOT be the temp sensor. The Dometic system has the option of remote sensors and IF there is a remote sensor connected to the upper AC control board, the wall tstat will not be the temp sensor. Doug
