Dometic thermostat
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URL: http://www.rpod-owners.com/forum_posts.asp?TID=11683
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Topic: Dometic thermostat
Posted By: Oharley
Subject: Dometic thermostat
Date Posted: 06 Jun 2018 at 4:34pm
I can’t seem to remember how to reset the thermostat to get rid of the flashing “E4” error code. Could someone please refresh my memory.
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RP 179
2016 Ram 1500 5.7L Hemi 4x4
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Replies:
Posted By: mcarter
Date Posted: 06 Jun 2018 at 5:10pm
Charley, this is from my manual.
Make sure the Single Zone LCD thermostat is in the Off condition.
Press the “+” button and, while holding it, also press and hold
the On/Off Mode button for three seconds. LCD will show
― ― . Press the On/Off Mode button again to turn system off.
Not sure that will clear E4. I seem to recall a post about pulling the furnace fuse.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: mcarter
Date Posted: 06 Jun 2018 at 5:20pm
From kymooses almost 3 years ago:
Sometimes it really is just a glitch of the t-stat. A complete shutdown of power to the entire camper and then plugging back in will sometimes just clear the error code.
This is the error code message for 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 can continue to operate.
Complete shutdown means disconnect battery.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: Oharley
Date Posted: 06 Jun 2018 at 5:30pm
It seems like I do vaguely remember having to disconnect the battery and shore power the last time I experienced this problem. Thanks for the replies guys.
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RP 179
2016 Ram 1500 5.7L Hemi 4x4
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