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 > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 11-27-2022, 08:54 AM   #1
Junior Member
 
Join Date: Jan 2022
Posts: 10
5 button thermostat phone lines

Hi All,
I have a 2003 38' alpine that has the original ac units with the 5 button thermostat. I removed the rear ac unit to reseal the unit and the phone line that controls the unit from thermostat has the wires crimped where you can see the wire colors. Turns out these wires are very fragile and some of the wires broke off at the crimp. The only wires still connected were a yellow to black wire. i found 3 crimp connectors so idk if all 4 wires were connected or if all four are needed. I wish i would of taken a picture of them but i didn't. I looked at the phone line going to front unit and the wire colors match. So the back unit is wired differently than the front unit. I was wondering if anyone has experience with these wires or could possibly look at theirs and let me know the correct wiring..carefully. They can be accessed under the filter cover. Thanks!!
__________________
2003 Alpine 38' fds
SoFLAlpine is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com 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 11-28-2022, 10:30 AM   #2
YC1
Senior Member
 
YC1's Avatar


 
Join Date: Jun 2011
Location: FL
Posts: 10,808
thermostat

Here is a file that might help. It does not show colors of course because electrons are color blind.

You may have to find the other end to identify the pinout.

A picture might help as well to be sure.
Attached Files
File Type: pdf Thermostat Dometic 5 button control.pdf (662.1 KB, 12 views)
__________________
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008

.
YC1 is offline   Reply With Quote
Old 11-28-2022, 03:19 PM   #3
Senior Member
 
Jeep401's Avatar
 
Join Date: Nov 2017
Location: Marysville, WA
Posts: 530
I had to replace that wire in mine from the front to the back. I can't help with the "do you need" part, but the ends are readily available at home improvement box stores.
Make sure and get the wires in the proper order, it's not the same as a phone.
__________________
Angelo & Leslie
2005 Alpine 36FDDS #75268
MARYSVILLE, WA.
Jeep401 is online now   Reply With Quote
Old 11-28-2022, 03:22 PM   #4
Senior Member
 
Jeep401's Avatar
 
Join Date: Nov 2017
Location: Marysville, WA
Posts: 530
Quote:
Originally Posted by YC1 View Post
Here is a file that might help. It does not show colors of course because electrons are color blind.

You may have to find the other end to identify the pinout.

A picture might help as well to be sure.
Looks like page 3 shows the colors and order.
__________________
Angelo & Leslie
2005 Alpine 36FDDS #75268
MARYSVILLE, WA.
Jeep401 is online now   Reply With Quote
Old 11-28-2022, 07:59 PM   #5
Junior Member
 
Join Date: Jan 2022
Posts: 10
Thanks for the link YC1. I may have the wiring correct but when i have time to dig into it i'm going to check it out. The line going to rear unit is pretty long so it will be easy to do a continuity test on the wires. It appears the phone line from the thermostat goes to the front unit and the rear is fed from the front unit.
__________________
2003 Alpine 38' fds
SoFLAlpine is offline   Reply With Quote
Old 11-29-2022, 06:09 AM   #6
YC1
Senior Member
 
YC1's Avatar


 
Join Date: Jun 2011
Location: FL
Posts: 10,808
Good eyes Jeep, guess I got lazy.
__________________
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008

.
YC1 is offline   Reply With Quote
Old 12-02-2022, 11:07 PM   #7
Senior Member
 
Join Date: Jan 2006
Location: Simi Valley, Calif
Posts: 188
Data/phone line

The phone line goes to control box on front a/c second line on front a/c goes to
Rear a/c. On some there is a second line off rear a/c for control of hydrohot if installed
__________________
Sandy and Debi
2004 Alpine 36 FDDS
sandy1 is offline   Reply With Quote
Old 12-04-2022, 08:01 PM   #8
Junior Member
 
Join Date: Jan 2022
Posts: 10
So the line going to the back unit plugs into a connector that has 2 female plugs on each end. The mail plug coming from the control board on the Ac plugs into 1 side. The other side the cable from the front unit plugs into it. It appears that this connector reverses the color code. The cable coming from the front has the 4 wires stripped and crimped BUT they were so fragile the wires broke off at the crimps except for the yellow to black wire. The front unit where the wires are crimped the colors are not swapped. I just got back today and i plan on checking it out further this week. Luckily the front unit was sufficient.
__________________
2003 Alpine 38' fds
SoFLAlpine is offline   Reply With Quote
Reply

Tags
phone, 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
Duotherm 10 button thermostat to new 5 button digital honeywell help Tk0608 RV Systems & Appliances 8 02-14-2021 02:02 AM
How many years do PEX lines last ? And, do you replace your own plumbing lines ? MWeiner Class B Motorhome Discussions 79 02-02-2020 07:49 PM
4 button thermostat vs 5 button Arkansas RV Newmar Owner's Forum 2 06-11-2017 07:21 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 04:17 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.