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E-! reading on RV thermostat #7994526 10/01/20 02:28 PM
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Wilhunt Offline OP
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Had a electrical storm at the lease that caused us to lose power. Turned breakers back on checked fuse's and all is back on except the air cond. Thermostat shows E-1 , wiring is good behind the thermostat which is digital. Someone suggested to hold Zone and Mode down at the same time and then turn on. When holding the buttons down the thermostat it's self comes on but does nothing for a/c.
Have not checked to make sure the 3 wires from thermostat are connected in the control box that is next.
Appreciate any suggestions.
Thanks!

Re: E-! reading on RV thermostat [Re: Wilhunt] #7994541 10/01/20 02:37 PM
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bill oxner Offline
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Re: E-! reading on RV thermostat [Re: Wilhunt] #7994662 10/01/20 04:18 PM
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Judd Offline
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How do I fix the e1 code on my Dometic thermostat?

You can try removing the thermostat from its holder, unplug the comm cable, wait 2 minutes, replug, make sure the CCC2 is OFF, do the Reset, turn ON and check to see if all units are available. Okay read the posts from the link below. Your problem sounds like one I had. Make sure to read the entire post.Apr 8, 2019

https://www.irv2.com/forums/f103/dometic-thermostat-error-code-e1-438300.html


Originally Posted by Phil Robertson
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
Re: E-! reading on RV thermostat [Re: Wilhunt] #7994695 10/01/20 04:53 PM
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Wilhunt Offline OP
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Judd, How do you identify the Comm cable? Is the CCC2 the thermostat it's self? If not what and how to identify? My unit in question is one 15000 dometic.
Thanks

Re: E-! reading on RV thermostat [Re: Wilhunt] #7994902 10/01/20 08:12 PM
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Judd Offline
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I'm sure it's different if you have the square with dip switches versus the square with the LCD in the center.


Originally Posted by Phil Robertson
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
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