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Old 05-03-2016, 01:52 PM   #1
1 Rivet Member
2008 19' Safari
Toronto , Ontario
Join Date: Sep 2003
Posts: 19
Upgrading '08 Dometic thermostat

Is it possible to upgrade the older type thermostat to one of the newer more functional ones? I have a new to me '08 Safari SE.
Thanks in advance for any advice/

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Old 05-03-2016, 02:33 PM   #2
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1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
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A thermostat only has one function. Turn on and turn off the heater. If it works that is the best you can do.

I say if it works because I did have to do some modifications to the spring to get the hysteresis more in line with the capacity of the heater.

2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 05-03-2016, 02:51 PM   #3
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2008 19' Safari
Toronto , Ontario
Join Date: Sep 2003
Posts: 19
Thanks, HowieE
By "thermostat", I was referring to the controller on the wall that controls the air conditioning, heat pump fan and heater components together. The newer digital-type units appear more functional than the relatively primitive one in my 19' Safari. I know they all do the same thing but I find the older model that I have is not only difficult to see but is also not inspiring nor in keeping with the otherwise neat look and potential of the newer one I have seen.
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Old 05-03-2016, 03:18 PM   #4
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2008 25' Classic
Wichita Falls , Texas
Join Date: Nov 2012
Posts: 4,273
Good question. I would like to change my Dometic controller to the newer style but since we have an earlier version of the Penquin AC/heat pump I bet its not swappable. I believe the 5 button thermostat is analog and the Comfort Control Center for the Penquin II are digital. I've see some circuit boards available to allow a Penguin II to use the older 5 button thermostat but I can't find any info for using the newer thermostat models on the Penguin I AC/heatpump.

If your older thermostat is broken you can still get them.

2008 Classic 25fb "Silver Mistress"
2015 Ram 2500 6.7L Cummins. Crew Cab, 4x4, Silver
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