Upgrading analog thermostat to digital one

[67hvymtl]

I have the analog Coleman Mach thermostat in my Roo 233S right now. I would like to upgrade to this one since it's a direct replacement :


RVP 8330 3862 Coleman Mach Black Digital Wall Thermostat | eBay

The questions I have are:

1. Is it plug and play?

2. Do i have to splice wires or do the the wires screw underneath the terminals?

3. Is this mod too complicated for a girl like me to do? Lol

[wbdvt]

I just got the same one to replace my analog tstat. I haven't installed it yet as it just came today.
It comes with pigtails, stripped with wire nuts as the wires are soldered to the circuit board on both tstats. when you take the analog off the wall there should be enough slack that when pull up the wires from the tstat you see they are crimped to the outgoing wires. Simply cut, strip and wire to match the colors.

[WFD]

I have the exact same thermostat....very simple to do. In mine it was simply put the wires in the same place as with the old one...all color coded. Nice thing with that thermostat was that it was an exact fit. It's also way more accurate and has a much smaller temperature swing. Very good improvement.

[67hvymtl]

Ok thanks.

I'm just a little leary about taking on the project myself.

Could I just use butt connectors to join the wires together?

[bshort]

I did the same swap. You have to cut the wire harness into the original stat, strip the wires and attach to the new stat with wire nuts provided. Easy.

[5picker]

I did the same swap. Works GREAT by the way.

My original wire connections were all done with non-reusable crimp connectors so I had to cut each one, (near the crimp connector) strip the insulation and reconnect to the new stat with wire nuts. Do them one at a time and you'll have no problems. 10 minute job.

[wbdvt]

When I just did it I used barrel insulated crimp connects 22-18 awg (Home Depot).
The wires on the tstat pigtail are 18 awg which matches up with the Red and Black 2 wire bundle. The other wires on the trailer side seemed to be about 24 awg and did not have that size on stripper. Used wire cutters to strip it as they are solid conductor not a multiple strand conductor like the rest. Since they were solid and undersized for the crimp connector, I bent the stripped end in two and inserted in the crimp connector. After crimping I tugged on the wire to insure it was in tight.

The other thing I did was to insert plastic anchors into the screw holes for mounting.

[Stormrider151]

Very easy install. As long as you don't let the wires fall back into the wall. It gets a little complicated if you do. Trust me.

[lciaramitaro]

I did that swap this summer. It was a 10 minute job. Everything was completely interchangeable down to the screw holes. I have found that in doing mods to my camper, I have yet to find a completely circular hole cut by the builders in my camper. They apparently like to make whatever shape they wish. Lol.

[ben31]

If you are worried about doing it, don't. It was easy. Really easy.

Remove all power from the trailer. Then, when swapping the thermostats, only remove one wire at a time from the old thermostat and attach that wire to the same color one on the new thermostat. Then do the next wire.

I did this on two of my previous trailers. You will like the narrower temperature range.

[sfsgm]

Yes, and then punch out the donut hole out leaving splinters around the hole. And it doesn't seem to matter whether you paid twice as much for your unit than others, it's probably ALL shoddy workmanship behind the glitz of the external covering.

[W5CI]

Will the Coleman Digital thermostat work with a DuraTherm/Dometic AC with the analog thermostat? Just asking as I did this mod on my Outback but now have a Cedar Creek.

[Witch Doctor]

Originally Posted by W5CI

Will the Coleman Digital thermostat work with a DuraTherm/Dometic AC with the analog thermostat? Just asking as I did this mod on my Outback but now have a Cedar Creek.

NO it will not, the problem is that Dometic in there great wisdom uses a negative wire for there A/C. It will not work. There is a past thread maybe a year ago with how they wire the stat. I did HVAC for more years that I wish to remember, And I still didn't understand it except for a member who knew they use a negative feed. You would have to buy a dometic digital stat from them and it's not cheap. I hope that helps you... PS: even if you change it make sure you plug that hole the wires come through or you will still be off.....

[67hvymtl]

I thank you all for giving me the reassurance to take on the task

My next question is this:

My tstat has a fan only setting as well as the heat and cool setting on the left just like this picture. Is this tstat still going to work?

RVP 8330 3862 Coleman Mach Black Digital Wall Thermostat RV camper Trailer | eBay

[325BH]

I just did this exact swap two weeks ago. I had the exact same Coleman Mach as you and upgraded to the exact same digital Coleman Mach.

I used butt connectors. The new thermostat has wires coming out that need to be connected to the house wiring. The colored wire on the new and old thermostats match... so take a phone pic of the existing wiring connections and wire up the new, connecting the same colored wires as the old thermostat to the house wire colors that the old was was connected to.

[Tbates]

I did the same swap this past weekend, was quick and simple, did one wire at a time, also took pick before starting.
I used connectors that were crimped to make the connection.

[Exlimey]

I did the same swap this summer and like others have said, it was very easy. Just make sure that's the correct model. The seller I bought mine from sent me the wrong one. There's a model that looks identical but has one additional wire. It's made for heat pump systems. Once I got the right one, no problems! It's a great upgrade. My analog t-stat had 3 screws that mounted it to the wall but the digital one only has 2. I'd use good wall anchors rather than leaving the mounting the shoddy way that FR does it.

[metalsideup]

I have to echo Stormrider151's admonition...when swapping out thermostats be very careful not to let the original wires fall back down into the wall. I'm assuming he & I experienced the same "whoops" moment!

[Witch Doctor]

Originally Posted by 67hvymtl

I thank you all for giving me the reassurance to take on the task

My next question is this:

My tstat has a fan only setting as well as the heat and cool setting on the left just like this picture. Is this tstat still going to work?

RVP 8330 3862 Coleman Mach Black Digital Wall Thermostat RV camper Trailer | eBay

YES it will work..

[67hvymtl]

OK, I'm ready to take on the task!!!

Thanks for helping a girl out!!

You're all the best!!