RV.Net Open Roads Forum: Travel Trailers: No heat / Furnace not working

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Travel Trailers

Open Roads Forum  >  Travel Trailers  >  General Q&A

 > No heat / Furnace not working

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
kode9

Las Vegas

New Member

Joined: 11/12/2021

View Profile


Offline
Posted: 11/12/21 12:45pm Link  |  Quote  |  Print  |  Notify Moderator

Hi.

I bought in August a Grand Design 297QB brand new and while I did test everything there - on the RV lot - and then, nowadays when temperatures start to drop, the heater is not working.

It did work for a couple of hours back in September, but now. Nothing. Nada. NONE.

And all I did then was to just to increase the temperature of the thermostat from 75 to 82( or something like that ) and heater would work.

Now if I do the same, the only thing that comes out is cold air.

The thermostat is a Coleman-Mack.

Must mention that I am complete noobie when it comes to RV/Traver trailers and so on.

Thank you.

wanderingbob

monticeeo, fla

Senior Member

Joined: 07/26/2012

View Profile


Offline
Posted: 11/12/21 01:19pm Link  |  Quote  |  Print  |  Notify Moderator

Did Ya try the " auto position ?

zigzagrv

Nazareth, PA

Senior Member

Joined: 08/12/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/12/21 01:39pm Link  |  Quote  |  Print  |  Notify Moderator

Are you hooked up to shore power? If not, your battery may be low. For the furnace to go on the fan must blow hard enough to operate the sail switch, which tells the furnace to ignite and that you have enough air to circulate the heat. Battery should be at least 12.3 volts.


Ron

2003 Gulf Stream Ultra Supreme 33'
F53 Class A
2013 Ford Edge toad


enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 11/12/21 01:52pm Link  |  Quote  |  Print  |  Notify Moderator

Access you furnace, varies between makes and models, locate the two blue wires. Connect them together. Furnace should start and produce heat. Separate the wires, furnace should go into cool down mode.
If it operates in that manner, thermostat is bad.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


WayneAt63044

St. Louis, MO

Senior Member

Joined: 12/24/2011

View Profile



Good Sam RV Club Member

Offline
Posted: 11/12/21 03:05pm Link  |  Quote  |  Print  |  Notify Moderator

The furnace heats using propane; are the tank valves open?


2012 Forest River V-Cross Vibe 826VFK
pulled by 2009 Ram 1500 Quad Cab Hemi

ktmrfs

Portland, Oregon

Senior Member

Joined: 06/22/2005

View Profile


Offline
Posted: 11/12/21 03:35pm Link  |  Quote  |  Print  |  Notify Moderator

WayneAt63044 wrote:

The furnace heats using propane; are the tank valves open?


it's not just "are the tanks open?" it's also is the excess flow valve closed? Easiest way to have propane problems with tanks made in the last 15 years or so is to open the propane valve to fast. SLOWLY is the word of the day. To check if there is enough flow, light the stove burners. if you get a good flame on high your ok. If all you get is a weak flame, turn off the propane tank, disconnect the hose, reconnect the hose and make sure it is ALL the way tightened. then SLOWLY open the valve. Check the stove.

Oh, and make sure you have propane in the tanks!

Next, on the thermostat make sure it is set to heat, not cool or fan.


2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!


CavemanCharlie

Storden,MN

Senior Member

Joined: 03/01/2012

View Profile


Offline
Posted: 11/12/21 05:14pm Link  |  Quote  |  Print  |  Notify Moderator

WayneAt63044 wrote:

The furnace heats using propane; are the tank valves open?


And are they full ??? Have you used the stove or any other propane item ? Have you tried the stove to see if it will light ??

zigzagrv

Nazareth, PA

Senior Member

Joined: 08/12/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/13/21 10:20am Link  |  Quote  |  Print  |  Notify Moderator

Like most noobs who come on here lately. we will probably never know the outcome. [emoticon]

morphrider

Colorado

Full Member

Joined: 04/14/2015

View Profile



Good Sam RV Club Member

Offline
Posted: 11/13/21 10:36am Link  |  Quote  |  Print  |  Notify Moderator

I would also check to make sure the fresh air intake from the outside is clear of any debris. I had a pop up camper years ago that I tried everything to get heat on. Finally on the day I sold it, literally, I found a 2 wasp nest in there. It was very small but heat kicked on right after, doh…

canoe on top

Denver, CO, US

Senior Member

Joined: 07/21/2003

View Profile


Offline
Posted: 11/13/21 11:23am Link  |  Quote  |  Print  |  Notify Moderator

It's new. Take it back to the dealer. I had a furnace in a class C that worked fine until the temp got below freeziing. Then fan would run but only cold air. Stove worked. Turns out it was moisture in the regulator. The regulator would freeze. It would allow enough propane for the stove to work but, not the furnace.Had to replace the regulator and purge the tank to get the moisture out.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Travel Trailers  >  General Q&A

 > No heat / Furnace not working
Search:   Advanced Search

Search only in Travel Trailers


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.