Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > RV Systems & Appliances
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 07-31-2022, 08:30 AM   #1
Junior Member
Join Date: Jul 2022
Posts: 3
Compressors kicks on without thermostat. How to wire thermostat.

So I first installed a hunter digital thermostat have had no issues for 2 years then I wire in a furnace and now I cannot get any communication to the unit. I am trying to wire a WiFi thermostat as I thought the thermostat was bad. Nothing is communicating and I have tried many wire placements. I can only get the compressor and fan on by touching red furnace wire to the brown. I have disconnected 12v to furnace but outcome is still the same. Compressor kicks on and off without touching any wires. Any help would be much appreciated im sure something is broken but unsure of what it could be.
Attached Thumbnails
Click image for larger version

Name:	C741EEFB-8534-463F-AD26-F850862FD3AF.jpg
Views:	10
Size:	206.1 KB
ID:	372390   Click image for larger version

Name:	397B6E07-31FA-4EF6-B5FC-409F7F620A3A.jpg
Views:	9
Size:	384.8 KB
ID:	372391  

Click image for larger version

Name:	F6295D9A-01EA-487F-B6B7-00F095B62563.jpg
Views:	7
Size:	297.3 KB
ID:	372392   Click image for larger version

Name:	A84E7822-C7F2-470C-8DB0-1663409C2E3C.jpg
Views:	11
Size:	226.7 KB
ID:	372393  

ColtonG is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-01-2022, 04:26 PM   #2
Senior Member
Join Date: Aug 2019
Location: Eastern outskirts of Dallas, TX
Posts: 2,333
By the looks of it, it appears you had 2 thermostats - one for heat, one for cool. And then you attempted to wire both heat and cool units to a single thermostat. Correct?

With no wires connected, your right, the compressor shouldn’t be trying to run - and in fact, nothing should be trying to run.

If my first statement is/was correct then each unit has its own control power supply. Most thermostats allow for that by removal of a jumper when each unit has its own power supply.

And (and I’m not sure about the Hunter stat) WiFi stats will typically require a common coming from the the unit control power supply.

If by chance in your trying to parallel the units to a common stat and the two unit control power supplies were tied together - it’s possible that they didn’t like it and some smoke was let out of something.
But that or any of the above don’t explain why the compressor runs on its own. Somehow, someway the compressor relay sounds like it has welded its contacts together internally.

Post the manufacturer and model of your heater and a/c unit along with the model of Hunter stat and this can be assessed a little deeper. Not enough info to tell anything with what you’ve given.
‘91 Ultrastar Champion‘02 Georgie Boy Landau 8.1l Workhorse
‘03 Jeep Wrangler TJ 2018 Jeep Wrangler JK toad
MrMark52 is offline   Reply With Quote
Old 08-02-2022, 08:12 AM   #3
Junior Member
Join Date: Jul 2022
Posts: 3
Yes MrMark I tried connecting both together but realized it wasn’t working so I turned the furnace on using the top red and white wires. I’ll have to get the model numbers for you this weekend. Trying to hookup the WiFi thermostat replacing the hunter.
ColtonG is offline   Reply With Quote
Old 08-06-2022, 05:32 PM   #4
Junior Member
Join Date: Jul 2022
Posts: 3
Here’s the model number. If this helps. Appreciate you looking.
Attached Thumbnails
Click image for larger version

Name:	8C86DAC1-E4CB-4E4F-98C2-EE7E122AC17A.jpg
Views:	5
Size:	435.3 KB
ID:	373007   Click image for larger version

Name:	C4F7D573-CAF5-42D3-A821-BBBAB36B1553.jpg
Views:	3
Size:	198.7 KB
ID:	373008  

Click image for larger version

Name:	1F71F4B6-0DAB-4A60-A252-2F8F32A70CA3.jpg
Views:	5
Size:	257.2 KB
ID:	373009  
ColtonG is offline   Reply With Quote

compressor, thermostat

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thermostat Set To Heat Pump, Propane Furnace Kicks On Shutterbug57 Tiffin Owner's Forum 11 01-15-2021 04:25 PM
How to wire a negatives twelve volt wire for a analog thermostat to a digital thermos Egom RV Systems & Appliances 8 08-27-2020 09:04 PM
Roof top AC compressor kicks on, runs for 3 seconds then kicks off Steven2k7 RV Systems & Appliances 6 04-02-2012 09:54 AM
Stairwell Toe Kicks Dutch Star Don Monaco Owner's Forum 18 01-23-2012 07:56 PM
Auto transfer switch kicks out millred1 Class A Motorhome Discussions 13 08-31-2011 09:47 AM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 06:45 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.