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Old 05-02-2014, 10:41 AM   #1
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New digital thermostat

I gotta tell you that my newly installed digital thermostat is the best thing since hot buttered bread! Old one had 5+ degree temp variations and new one has only one to two. Much more comfortable.
I went with the Coleman-Mach upgrade (+$) so the wiring was a breeze. Only problem was I had to install it vertically due to not enough width at current location. Someone mentioned a crook in the neck if vertical install, but oh well, it looks funky but works great. I am a happy camper who can now read numbers sideways. Lol.
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Old 05-02-2014, 12:43 PM   #2
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Great mod, did mine a few years back.

.... one would think with all this digital technology the device would automatically sense it's mounting orientation and adjust the read-out accordingly...., now that would be

Bob
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Old 05-02-2014, 12:47 PM   #3
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Which model of Coleman-Mach upgrade is it?
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Old 05-02-2014, 11:09 PM   #4
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It's the Coleman-Mach 8330-336 from rv'sRus. Got it thru Amazon for $70.39 which a lot of folks say that's way too much. But having an easy wire to wire match-up for a quick install means a lot to me. Even though I installed it, it still works. God knows I can mess up the easiest mod task. Lol.

And hey, Bob. Wish it would adjust orientation like my smart phone does. Maybe that's an option I can look into with Coleman....NOT!

Jeff
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Old 05-03-2014, 06:41 AM   #5
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I replaced both of my original analog thermostats with the Coleman brand after just a few days of full time. As you said, the temperature swing with the analog units was terrible. I also agree about the price vs ease of install. I wanted to do it once and have it work. Both did and it took minutes to do.

Almost 4 years later they are both working perfectly.
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Old 05-03-2014, 09:39 PM   #6
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I have changed to digital on the two trailer we have had and the Bungalow we live in. Everything works much better.
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Old 05-05-2014, 04:50 PM   #7
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So maybe you can advise me...

Just got home from a short trip and had one day where we wanted a/c. I had switched out the manual (analog) thermostat with the RV Comfort Coleman Mach 8330-336, being so its both heat and cool. I thought everything was good to go until running the a/c and the furnace fan also kicks on and off. I've been searching this forum for a solution and thought I had found it where someone else reported this same behavior and said that it was cured by changing the jumper on the thermo from electric heat to gas. Mine doesn't have that jumper, just the one for f/c readout.
So I've got both the booklet for the Coleman Mach and the manual for the Atwood 8531-IV-DCLP L/D furnace and of course they may as well be written in some ancient dead language (did I also mention that I'm colorblind?).
When initially switching the units I did take a wire off of the old one and connect it to the new one, and thought all would be good, except for that damn furnace fan.
I have a trip into California in June and I'm certain I'll want some cooling so someone please solve this riddle for me.
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Old 05-05-2014, 05:31 PM   #8
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This a mod is like to do. On my 264bhs though the thermostat is only for heat and the ac has it's own controls on the unit in the ceiling. Guess I need to see if they make one just for heat...
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Old 05-06-2014, 09:09 AM   #9
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Sorry Cosmik, I can't help you with that one. I'm sure you did it, but did you recheck all the connections for contact and color matching?
Hopefully you will get some help soon. This Forum will not let you down.
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Old 05-06-2014, 09:27 AM   #10
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well...

I did, but being colorblind I'll get my wife to verify the colors today. Wouldn't be the first time I've messed that up. Thanks
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