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Old 10-13-2016, 05:10 PM   #1
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Posts: 27
2504s AC wiring

Can someone help me identify the AC thermostat wiring colors?

ThanksClick image for larger version

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I was trying to install a digital Honeywell but nothing matches upClick image for larger version

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2016 Rockwood Minilite 2504S
2013 Mercedes ML350
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Old 10-13-2016, 06:32 PM   #2
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Location: Idaho
Posts: 2,272
This is what I think
red 12V power
white call for heat
Yellow call for AC
green fan
brown heat pump
blue common for 12 v

Don't take this as fact it just my opinion or JMHO

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Old 10-13-2016, 08:43 PM   #3
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Location: Manassas, VA
Posts: 24
I suggest you purchase the Coleman RVP 8330-3862 or the RVP 8330-3362 (color black, color white, respectively).

Using a home-type thermostat requires modification to make it work with an RV. See the Analog Coleman Mach Thermostat thread.
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Old 10-13-2016, 08:57 PM   #4
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Join Date: Jun 2012
Posts: 5,097
Here's the diagram for my Honeywell and Coleman Mach in my 2503S.

You won't need the blue wire.
Attached Files
File Type: pdf Thermostsat wiring.pdf (121.6 KB, 14 views)
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
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