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Old 06-16-2015, 05:09 PM   #1
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Replacing analog thermostat with digital, have questions

There is a lot of information out there, I'm trying to get opinions from people.

#1 is the wiring of the analog thermostat. The wire colors don't coordinate with traditional residential wiring coloring. Does anyone know what color wires from the Jayco correspond with what function for the thermostat? If it matters, I have a 2015 JayFlight with the 15K ducted AC. I would like the new thermostat to handle AC and furnace. I plan to use the HI FAN setting, am not worried about losing the LOW FAN setting.

#2 I have read concerns that a traditional residential digital thermostat can cause issues with the RV air conditioner. Is there anyone here that has converted to a residential style digital thermostat? A regular digital thermostat can be had for $20, whereas the "RV specific" digital thermostat is around $60.

I appreciate any comments.
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Old 06-16-2015, 05:22 PM   #2
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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 $$ to not fuss with it and know it would work.
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Old 06-16-2015, 07:17 PM   #3
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Originally Posted by drk98 View Post
I read through a lot of various posts regarding replacing the thermostat and came to the conclusion that the extra $40 for the Coleman digital rv thermostat was worth it to not have to fool with hassle of translating to a residential one and a good number had issues when they did. It was worth the extra $$ to not fuss with it and know it would work.
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Old 06-16-2015, 08:03 PM   #4
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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.
Yep, been there done that! Could never get the Lowes thermostat to work properly. So, I purchased the Coleman-Mach digital and wiring was easy and it works great. Spend the bucks...reduce the stress .
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Old 06-16-2015, 08:25 PM   #5
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The home thermostats are made for 24 volts, the RV is made for 12 volts, that's why the Lowes won't work.
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Old 06-16-2015, 09:04 PM   #6
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The home thermostats are made for 24 volts, the RV is made for 12 volts, that's why the Lowes won't work.
You left out 24 volt ac for residential, 12 volt dc for RV's.

If someone is looking for the ability to program, then going digital from a basic unit makes sense to me.

If anyone thinks that digital is better than a properly working analog unit then re-consider your actual needs. As long as the basic analog unit has consistent temperature control it will keep you comfortable.

There is much to be said for a reliable mechanical device in the typical RV which often sits dormant for much of its life. Unless you need program ability a digital readout is just fluff.

All that said, if you need to upgrade, unless you are familiar with HVAC controls, it makes the most sense to stay with products intended for RV units.

FWIW. vic
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Old 06-16-2015, 09:06 PM   #7
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I agree, I have the plans for using one but I already have enough things to do. $40 is a small price to pay to get it done.
I swapped mine out 2 years ago.

15 minutes, color for color.
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Old 06-16-2015, 10:22 PM   #8
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Did the same thing, replaced the Coleman Mach mechanical with the Coleman Mach digital. 15 minute job.
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Old 06-16-2015, 10:48 PM   #9
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Quote:
Originally Posted by VicS1950 View Post
You left out 24 volt ac for residential, 12 volt dc for RV's.

If someone is looking for the ability to program, then going digital from a basic unit makes sense to me.

If anyone thinks that digital is better than a properly working analog unit then re-consider your actual needs. As long as the basic analog unit has consistent temperature control it will keep you comfortable.

There is much to be said for a reliable mechanical device in the typical RV which often sits dormant for much of its life. Unless you need program ability a digital readout is just fluff.

All that said, if you need to upgrade, unless you are familiar with HVAC controls, it makes the most sense to stay with products intended for RV units.

FWIW. vic
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.
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Old 06-16-2015, 10:55 PM   #10
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Did the same thing, replaced the Coleman Mach mechanical with the Coleman Mach digital. 15 minute job.
Spend the extra $$ to get a real easy swap with the Coleman Mach digital. Took me about 15 minutes also but had to install it vertically because I didn't have enough space between the door jamb and the cabinet. Looks pretty funny to see me with my head cocked sideways just to read the thing, but it works great and keeps the temp perfect. Keeps my old neck loosened up too! Lol
Happy RVing,
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