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Handysam
06-15-2016, 06:10 PM
Hello all my wife is alone at our camper (327res) 2011, and I'm at home 60 miles away. She had a bad storm go through tonight and the a/c no worky now. It's showing an error code on the thermostat E 1, we did all the initializing and resetting and it's still showing that code and won't work. Anyone have any suggestions? The thermostat is a Dometic single line. I'm at a loss. Thanks in advance

chuckster57
06-15-2016, 06:18 PM
Sorry I'm home already, my dometic folder is in my tool box at work. If you don't get an answer by morning, I can post.

"Single line"- do you mean a single zone square LED read out thermostat?

Handysam
06-15-2016, 06:33 PM
Yes that's correct, I read the error code in the dometic on line instructions and it said " Loss of communication between the Single Zone LCD and the module board"

JRTJH
06-15-2016, 06:47 PM
Here's what the Dometic manual says for error code E1:

Error Code:
E1 Loss of communication between the Single Zone LCD thermostat and the module
board. LCD will cycle between E1 and the previous mode setting. System
will shut down.

My best guess: Chances are the orange wire inside the overhead airbox is not well connected. However that's just a guess. Somewhere, either behind the thermostat or on the A/C there's a loose or disconnected wire.

XLite28SGS
06-16-2016, 03:32 AM
I had the E1 code a few weeks ago - Found a loose wire in the ceiling box - wire nut fell off.

Allan:)

rmcspeterson
06-17-2016, 06:13 PM
same thing happened to us.