Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance 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.
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 09-22-2021, 08:35 AM   #1
Junior Member
 
Join Date: Sep 2021
Posts: 3
Lost power to thermostat

Hello all. Ok running coach ac and lost power to the thermostat. While checking fuse panel I found out that there is no 12v power going to furnace fuse bank. All other 12v banks are live.. should I be looking for another fuse somewhere between furnace and fuse bank? Thanks for any suggestions. Dave..
Quickolds 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 09-22-2021, 09:35 AM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 24,883
Welcome to iRV2.

Quick answer ; Yes .

Complete answer we will require all your RV info ; and furnace & thermostat make and model .
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-22-2021, 10:07 AM   #3
Junior Member
 
Join Date: Sep 2021
Posts: 3
I have a 2011 open range H345MPR 5th wheel with a RV comfort, Coleman Mach thermostat and a Atwood Hydro flame furnace., 8900-III-LD series.
Quickolds is offline   Reply With Quote
Old 09-23-2021, 07:14 AM   #4
Senior Member
 
K7JV's Avatar
 
Join Date: Jul 2006
Location: Boise Valley (SW Idaho)
Posts: 1,665
It doesn't look like there is any circuit protection for the furnace system once you leave the off/on switch, if you have one.

RV manufacturers are notorious for not accurately documenting their fuse blocks and breaker panels. My first check would be to pull each fuse, one at a time, and check it. If it's good, move on to the next one, until you've checked all of them.

Here's a link to the service manual for your furnace:

http://bryantrv.com/docs2/docs/hflamefurn04.pdf

I hopefully attached the wiring diagram for your furnace.

Good luck!
Attached Files
File Type: pdf Hydro Flame 8900-III Wiring Diagram.pdf (239.3 KB, 2 views)
__________________
Jim & Angie, Boise, ID
2021 Entegra Esteem 27U
2017 GMC Acadia Denali
K7JV is offline   Reply With Quote
Old 09-25-2021, 01:23 PM   #5
Junior Member
 
Join Date: Sep 2021
Posts: 3
Got it guys! A relay switch on top of the furnace. Wish I could post a picture to help the next guy. Thanks for the valuable input.
Quickolds is offline   Reply With Quote
Reply

Tags
power, 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
Front A/C won’t kick on and 4 button thermostat lost heat pump and furnace options. Cdr151 Monaco Owner's Forum 18 06-06-2019 04:26 PM
Duo Therm Thermostat lost power. capnleo Class A Motorhome Discussions 1 03-02-2017 08:59 PM
Duo therm thermostat lost calibration Samflhomes RV Systems & Appliances 0 09-19-2016 12:23 AM
A/C thermostat control - lost zone 1 JMonroe RV Systems & Appliances 4 09-28-2014 09:56 AM
Propane thermostat vs. True-Air electronic thermostat John_Canfield Winnebago Industries Owner's Forum 5 10-18-2005 03:32 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 05:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.