RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > National RV Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-29-2011, 06:10 PM   #1
Member
 
Russ & Dana's Avatar
 
National RV Owners Club
Join Date: Apr 2010
Location: Laquey, MO
Posts: 44
Rear furnace won't come on

I have a 2000 dolphin 5373 by national

It has two air conditioners and two furnaces

the rear heat will not come on, when i turn it on at the thermostat there is a clicking in the rear air conditioner. The furnace is on the floor in the rear.

I have taken the filter to the air cond off and there is a box there where all the electrical wires go into. (square metal box) and i can feel the clicking inside the box.

There is also a phone jack connector that is on the outside of the metal box when i disconnect the phone cord the clicking stops and starts again when i plug it back in.

Any help would be appreciated, as i sure hate to take it to the dealer

Thanks
Russ
__________________

__________________
2000 Dolphin
2001 Pt Cruiser
Russ & Dana 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 03-29-2011, 10:21 PM   #2
Senior Member
 
Theberrys's Avatar
 
National RV Owners Club
Join Date: Jun 2009
Posts: 2,618
Russ

The phone line is the data line fron the Comfort Control Center (Thermostat). So removing it stops all communication and the demand to turn on the furnace.
The clicking is the relay on the electronic control board in that box. The A/C unit turns on the furnace. Remove the cover from the metal box and look for two wires that will be labeled furnace on the silk screen of the board. Pull them off and touch them together, if the furnace starts then the electronic control board is faulty and needs replacement. If the furnace doesn't come on, and I can't imagine with the clicking this would happen the fault is in the furnace, but that doesn't account for the relay clicking. You might try replaceing the relay but soldering is required and it's just a guess without further testing.
Here is a picture of how the two A/C units and the furnaces are installed. Also a picture of the circuit board wiring to see where the furnace wires are connected. Look on the left side.
Attached Thumbnails
Click image for larger version

Name:	CCC Installation.JPG
Views:	93
Size:	140.8 KB
ID:	9093   Click image for larger version

Name:	AC Wiring.jpg
Views:	87
Size:	227.7 KB
ID:	9094  

__________________

__________________
1999 Tradewinds 7372 Cat 3126
Albuquerque, NM
Theberrys is offline   Reply With Quote
Old 03-30-2011, 09:25 AM   #3
Member
 
Russ & Dana's Avatar
 
National RV Owners Club
Join Date: Apr 2010
Location: Laquey, MO
Posts: 44
Quote:
Originally Posted by Theberrys View Post
Russ

The phone line is the data line fron the Comfort Control Center (Thermostat). So removing it stops all communication and the demand to turn on the furnace.
The clicking is the relay on the electronic control board in that box. The A/C unit turns on the furnace. Remove the cover from the metal box and look for two wires that will be labeled furnace on the silk screen of the board. Pull them off and touch them together, if the furnace starts then the electronic control board is faulty and needs replacement. If the furnace doesn't come on, and I can't imagine with the clicking this would happen the fault is in the furnace, but that doesn't account for the relay clicking. You might try replaceing the relay but soldering is required and it's just a guess without further testing.
Here is a picture of how the two A/C units and the furnaces are installed. Also a picture of the circuit board wiring to see where the furnace wires are connected. Look on the left side.

Thank you so much, I will do this and see what happens,

Info like this and the kindness of so many forum members make this forum a great place!


Thanks to all!
__________________
2000 Dolphin
2001 Pt Cruiser
Russ & Dana is offline   Reply With Quote
Old 03-30-2011, 08:30 PM   #4
Junior Member
 
Join Date: Jun 2007
Location: Austin, TX
Posts: 13
I had a problem with the front heater in my 99 dolphin 5370. I thought it may have been the control board. I took the two control boards out of both front and rear furnaces and switched them. The rear still worked fine but the front stayed the same. I put them back to the original configuration and the problem persisted. That showed me the problem was not with the board.

You might try switching yours and see what happens.

I then undid all the connections, cleaned them with electrical contact cleaner and reconnected. I used a pair of needle nose pliers to gently compress the connections and Viola!!! The front started working!!

Apparantly there was a weak or dirty connection somewhere. I STRONGLY suggest you take a digital close up of all the wires and connections prior to undoing anything. There a number of wires and plugs. A color picture will save a lot of headaches () when hooking everything back together.

Good Luck and Happy Trails!! -- Kevin
Kevin H is offline   Reply With Quote
Old 03-31-2011, 11:31 AM   #5
Member
 
Russ & Dana's Avatar
 
National RV Owners Club
Join Date: Apr 2010
Location: Laquey, MO
Posts: 44
Quote:
Originally Posted by Kevin H View Post
I had a problem with the front heater in my 99 dolphin 5370. I thought it may have been the control board. I took the two control boards out of both front and rear furnaces and switched them. The rear still worked fine but the front stayed the same. I put them back to the original configuration and the problem persisted. That showed me the problem was not with the board.

You might try switching yours and see what happens.

I then undid all the connections, cleaned them with electrical contact cleaner and reconnected. I used a pair of needle nose pliers to gently compress the connections and Viola!!! The front started working!!

Apparantly there was a weak or dirty connection somewhere. I STRONGLY suggest you take a digital close up of all the wires and connections prior to undoing anything. There a number of wires and plugs. A color picture will save a lot of headaches () when hooking everything back together.

Good Luck and Happy Trails!! -- Kevin
Thanks

I will try that,

I haven't had the time to work on it yet but in the next few days i will
Thanks
__________________
2000 Dolphin
2001 Pt Cruiser
Russ & Dana is offline   Reply With Quote
Reply



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
Rear furnace pilot blows out while traveling dukenrock RV Systems & Appliances 4 12-12-2010 06:13 AM
Furnace problem may not be in the furnace! turkeychuckt MH-General Discussions & Problems 3 02-03-2010 03:26 PM
No furnace, thermostat, air or heat pumps lnwilson Newmar Owner's Forum 4 01-03-2010 11:55 AM
Rear Furnace heat problem Barrier2 Monaco Owner's Forum 3 10-25-2009 06:47 PM
Rear Axle Overloading in RR Coaches Robin_M Monaco Owner's Forum 10 09-09-2009 10:29 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:32 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.