Question about Dometic 3313192.000 White Single Zone LCD Thermostat Heat/Cool/Fan

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Getting E1 error - Loss of communication between the single zone LCD thermostat and the module board. Manual doesnt give a solution or fix.

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Unplug cable at both ends. remove cover from t-stat. using contact cleaner spray contacts on cable and points it connects to. if necessary replace t-stat and cable

Posted on Aug 20, 2015

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Posted on Jan 02, 2017

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I'm pretty sure this thermostat uses digital communications with a dometic control board. In other words, there are no contacts in the digital thermostat to turn something on and off. Even if you ran a 12VDC wire to the thermostat for power, it won't work to replace a "real" thermostat. I bought one to replace my old analog thermostat and it's not going to work for me.

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Try this.
Turn off thermostat. Wait for no display on lcd.
Hold + and mode at same time for 3 seconds.
Lcd should display - -
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If that dosnt work you have a cabling issue between thermostat and main board. Possible bit rare component failure. If all is installed correctly.

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Error Code:
E1 Loss of communication between the Single Zone LCD thermostat and the mod-ule board. LCD will cycle between E1 and the previous mode setting. System
will shut down.
E2 Open circuit or out of range Indoor Temperature Sensor. Heating and cooling
operation will be locked out. Fan operation can continue to operate.
E3 Shorted Indoor Temperature Sensor. Heating and cooling operation will be
locked out. Fan operation can continue to operate.
E4 Open circuit or out of range Outdoor Temperature Sensor (select models). Heat
Pump operation will be locked out. Air Conditioner, Fan and Furnace operation
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E5 Open circuit or out of range Freeze Sensor. Air conditioner mode of operation
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continue to operate but displays the last temperature set-poi

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1 Answer

Dometic model 3313192 thermostat error code E1 what does this mean?


Hi By E1 error it means
Loss of communication between the Single Zone LCD thermostat and the module board. LCD will cycle between E1 error.

Check the link for regular maintenance Of the LCD thermostat.
If it doesn't help then you have to replace the LCD thermostat.

Ajin

http://www.google.com/url?sa=t&rct=j&q=dometic%20model%203313192%20&source=web&cd=1&ved=0CCwQFjAA&url=http%3A%2F%2Fmanuals.heartlandowners.org%2FHeating-Cooling%2FA-C_Units%2FDometic%2FDometic_Single_Zone_LCD_Thermostat_Operating_Instructions.pdf&ei=hOg0T7OUNIjkrAer4Ny6Dw&usg=AFQjCNEn2y9-ItUcF2KRJZ0dm0Ftrq8Jhw

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