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Old 06-16-2015, 10:59 PM   #11
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Anybody have the exact model (black color) for the digital coleman mach replacement? I've seen several different models that look similar with varying P/N. Just want to know which one yall are putting in the Jay Flight.
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Old 06-17-2015, 05:37 AM   #12
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The one I have is p/n 8330-3362. I purchased it from RVplus.com years ago at $61.88.
Google that number and you can find them on ebay too!
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Old 06-17-2015, 09:00 AM   #13
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Originally Posted by drk98 View Post
I read through a lot of various posts regarding replacing the thermostat and came to the conclusion that the extra $40 for the Coleman digital rv thermostat was worth it to not have to fool with hassle of translating to a residential one and a good number had issues when they did. It was worth the extra $$ to not fuss with it and know it would work.
+1 replaced mine with a Coleman Mach digital, never looking back. Easy wire to wire switch, and works perfectly!
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Old 06-17-2015, 09:04 AM   #14
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Has nothing to do with programing, in fact the Coleman digital is not programmable. I did the switch to digital for the ability to adjust it a degree at a time. the mechanical did not have great adjustability so we were always adjusting it higher and lower and missing the perfect setting.
Don't forget the 7 degree temp swing inherent in the mechanical 'stat. That's why I did mine; digital stat only swings about 2 degrees.
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Old 06-17-2015, 11:57 AM   #15
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Don't forget the 7 degree temp swing inherent in the mechanical 'stat. That's why I did mine; digital stat only swings about 2 degrees.
7 degrees is not inherent. A 7 degree swing sounds to me like there was a problem of some sort.

Most all thermostats have an offset adjustment so the swing can be trimmed in. Our 23b has a slider. I needed to adjust mine on the used 23b which we bought. Apparently the previous owner(s) never trimmed it in. Maybe the adjustment was never noticed.

Another problem is that due to corrosion the adjustment contact wiper can lose conductivity over time. That will affect operation. In an RV which gets stored off season it is probably a good idea to move that adjustment occasionally. Just moving it and moving it back to original setting can help the wiper to re-established proper conductivity.

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Old 06-17-2015, 12:59 PM   #16
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Quote:
Originally Posted by norty1 View Post
The one I have is p/n 8330-3362. I purchased it from RVplus.com years ago at $61.88.
Google that number and you can find them on ebay too!
Thanks Norty. I think the one I need is the 8330-3862, which appears to be same thing, just the black color version (no plug, just wire hook up). Do you by chance have the model of the one you took out?
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Old 06-17-2015, 01:41 PM   #17
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Originally Posted by BigJohnD View Post
Thanks Norty. I think the one I need is the 8330-3862, which appears to be same thing, just the black color version (no plug, just wire hook up). Do you by chance have the model of the one you took out?
That is the model number I installed last weekend, black digital AC and heat. Exact match wire to wire for the factory Coleman it replaced. Do it one wire at a time since camper wires are not color coded the same as the two thermostats.
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Old 06-17-2015, 01:50 PM   #18
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Originally Posted by VicS1950 View Post
7 degrees is not inherent. A 7 degree swing sounds to me like there was a problem of some sort.

Most all thermostats have an offset adjustment so the swing can be trimmed in. Our 23b has a slider. I needed to adjust mine on the used 23b which we bought. Apparently the previous owner(s) never trimmed it in. Maybe the adjustment was never noticed.

Another problem is that due to corrosion the adjustment contact wiper can lose conductivity over time. That will affect operation. In an RV which gets stored off season it is probably a good idea to move that adjustment occasionally. Just moving it and moving it back to original setting can help the wiper to re-established proper conductivity.

vic
Did not know that a mechanical stat could be adjusted. Many users cite the temp swing as a reason for switching over to digital. If they can be adjusted, a lot of people (including me) are replacing the mechanical ones unnecessarily.

Oh well, it's done, it was easy, and I'm happy with the results.
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Old 06-17-2015, 02:04 PM   #19
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Our 5th has 2 of the digital Coleman thermo's. The front BR is A/C only. The rear controls A/C and furnace (like the household thermo's).
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Old 06-17-2015, 04:23 PM   #20
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Darn it, not the answer I wanted to hear!!! Well, I appreciate the feedback and guess I understand why I wasn't able to find the info I wanted... it just wouldn't work anyways. I ordered a digital Coleman-Mach off Amazon for $70, should be delivered in time to head to the lake for the 4th of July week.


We were sick of the wide swing in temps... 9 days at the lake alternating between freezing cold and uncomfortable hot was not good enough for the wife. $70 to keep wife and kiddo's comfy is money WELL spent!
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