Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > SP (Single Axle Pusher Unique Issues)

SP (Single Axle Pusher Unique Issues) If you have a unique issue with your SP model coach and it can't be answered in one of the other forums here, then this is where you can list it....List your SP parts here too.

Site Search:
Reply
 
Thread Tools
  #1  
Old 03-09-2019
JoeWilliamson JoeWilliamson is offline
Junior Member
 
Join Date: Nov 2018
Location: Rancho Cucamonga
Posts: 24
Default Issues with Primus heating system

Hi,

I have my first RV, a 1991 SP36. So much to learn. I'm having a problem with the Primus heating system. I can get heat to blow out from under the bed, in the rear room, from the rear Primus controller. With the front controller, I can feel heat in the right baseboards, but it's not blowing out. I'm not sure how to get the left baseboards to work. I'm working only with the first button and thermostat on the control unit.

I assume there is a problem with the circulation pump. Does this sound right? Is there something easy to get this working, like a switch? Or should I start with checking the fuse, then proceed to the pump? If I need a new pump, are they easy enough to find?

I have 2 boondocking events later this month, and I hope I can get this system up and running beforehand.

Thanks,
__________________
Joe Williamson
Rancho Cucamonga, CA
1991 SP36 since 2019
Reply With Quote
  #2  
Old 03-10-2019
Randy Dupree's Avatar
Randy Dupree Randy Dupree is online now
Forum owner
 
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 36,870
Default

i think your doing good!
It seems like both boilers are working and making heat.
On the last bus i had with Primus heat one side did not have fans,and the other side did have fans.
I had 2 zones,a left and a right side zone.
There is a fan speed control in several spots,a round knob under a cabinet or?


Heres how the fans work,the fan has a speed control,and the speed control gets its power from a snap disc thats zip tied to the heater hose that runs through the coach.
The zip ties get loose and the snap disc does not make good enough contact to heat up and turn the fan on.


I have no idea where the fans are in an sp,but someone will be along to help.
I will guess,one fan in the bathroom,one in the kitchen and one in the bedroom.
__________________
DO NOT SEND PM
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
www.buybyebluebird.com

randy@randydupree.com
Reply With Quote
  #3  
Old 03-10-2019
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 13,226
Default

Our SP had a fan under the bed, one in the bathroom, one in the kitchen and one under the couch. they were controlled by snap disc and didn't have any speed control.

Are you sure both boilers are lighting when both controls are on? Have you gone back and felt each one? They both should be hot to the touch.
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
  #4  
Old 03-10-2019
biobug's Avatar
biobug biobug is offline
Senior Member
 
Join Date: Jul 2013
Location: Hood River
Posts: 1,769
Default

You came to the right place Joe. Did you recieve the picture I sent of the fan control?
As Randy said they are all a little different . My fan is right under the front part of the jackknife couch.. You mentioned that there was heat up front if I remember right but just no warm air blowing. If so then the water is circulating so you are close.

Welcome to the zoo!
Attached Thumbnails
Click image for larger version

Name:	20190308_152709.jpg
Views:	90
Size:	179.5 KB
ID:	60640  
__________________
John Alley
Hood River, Oregon
1992 Wanderlodge 36SP
porschenein59@gorge.net

"There comes a time in a mans life where he must take the bull by the tail,, and face the situation."
Reply With Quote
  #5  
Old 03-10-2019
JoeWilliamson JoeWilliamson is offline
Junior Member
 
Join Date: Nov 2018
Location: Rancho Cucamonga
Posts: 24
Default

I appreciate all of the great tips. I'll look into the 2 units and fans later today when I have time.
John, attached is a photo of what I guess is the thermistor and rheostat. It is on the underside of my galley cabinet. There is another set near the dinette.
It's hard to know which way is high, low, and off, if this is indeed the controller for the fan/blower.
Attached Thumbnails
Click image for larger version

Name:	IMG_0035.jpg
Views:	78
Size:	64.0 KB
ID:	60642  
__________________
Joe Williamson
Rancho Cucamonga, CA
1991 SP36 since 2019
Reply With Quote
  #6  
Old 03-10-2019
isp2952's Avatar
isp2952 isp2952 is online now
Senior Member
 
Join Date: Feb 2008
Location: 1520 N. Binkley Rd., Larwill, IN 46764
Posts: 6,610
Default

Quote:
Originally Posted by JoeWilliamson View Post
I appreciate all of the great tips. I'll look into the 2 units and fans later today when I have time.
John, attached is a photo of what I guess is the thermistor and rheostat. It is on the underside of my galley cabinet. There is another set near the dinette.
It's hard to know which way is high, low, and off, if this is indeed the controller for the fan/blower.


It may not always be true, but typically all the way to the left is off and all the way to the right is max., with variables in between.
__________________

Jim and Michele Walters
2000 LX ME
'93 WLWB (Sold)
Bluebird of Happiness
2002 Silverado Diesel 2500 HD 4x4
260-224-1278
Reply With Quote
  #7  
Old 03-10-2019
biobug's Avatar
biobug biobug is offline
Senior Member
 
Join Date: Jul 2013
Location: Hood River
Posts: 1,769
Default

It looks like the one I have for the bathroom Primas fan by the sink.. I bet that may be the issue. If you have a volt meter I would check for input.
__________________
John Alley
Hood River, Oregon
1992 Wanderlodge 36SP
porschenein59@gorge.net

"There comes a time in a mans life where he must take the bull by the tail,, and face the situation."
Reply With Quote
  #8  
Old 01-05-2020
JoeWilliamson JoeWilliamson is offline
Junior Member
 
Join Date: Nov 2018
Location: Rancho Cucamonga
Posts: 24
Default Where is power source for fan adjusting knob?

Hi,

I'm trying to get my Primus 2490 system running in the front of my rig, a 1991 SP36. The system works fine in the rear bedroom.

I know the blower under the couch will work, it has a good fuse, and it is connected to the adjusting dial in the living section. But there is no power going to it. The wires go towards the front of the rig, but I cannot trace where to. Where does it tap in to?

Same question for the adjusting dial in the kitchen. But my repair on the left side will be delayed until I order a new header tank. Do these dials only control the blower under the couch and the fans under the kitchen cabinets?

I also need a new thermostat, to sense coolant temperature in the back of the rig. I didn't see the part on the Dupree Products site. Does anyone know where I can obtain this part?

Thanks,

Joe
__________________
Joe Williamson
Rancho Cucamonga, CA
1991 SP36 since 2019

Last edited by Dieselbird01; 01-07-2020 at 01:20 AM. Reason: Moved this post from a Thread called "Where is power source for fan adjusting knob?" to this closely related Thread.
Reply With Quote
  #9  
Old 01-05-2020
Randy Dupree's Avatar
Randy Dupree Randy Dupree is online now
Forum owner
 
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 36,870
Default

Theres a snap disc zip tied to the hose coming to the convectors.
When the line gets hot the snap disc "makes" and sends power to the fans.
The zip ties loosen up and the disc looses contact and does not make.
Your mission is to find the snap disc!
It will be close to the convectors.
__________________
DO NOT SEND PM
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
www.buybyebluebird.com

randy@randydupree.com

Last edited by Dieselbird01; 01-07-2020 at 01:20 AM. Reason: Moved this post from a Thread called "Where is power source for fan adjusting knob?" to this closely related Thread.
Reply With Quote
  #10  
Old 01-05-2020
biobug's Avatar
biobug biobug is offline
Senior Member
 
Join Date: Jul 2013
Location: Hood River
Posts: 1,769
Default

Again, this is why the "WOG" bible is so important to us Wanderlodge Owners! Thanks Randy! You are an ENCYCLOPEDIA of knowledge with a razor blade cutting the new inexperienced WOG members with straight from the heart comments that can hurt or mostly help us. Without you I don't believe our "palaces on wheels" would be worth their value. If you are on the fence on Wanderlodges just check U Tube on RV Accidents. These steel "submarines" are as safe as any RVs come! My ability to maintain our "Starship"" is waining but their quality build will continue long past my passing. Our Wanderlodge has been the best investment we ever made! I am just a caretaker of our much loved 1992 SP. I surely hope the next owner appreciates the quality of the build like I do.
__________________
John Alley
Hood River, Oregon
1992 Wanderlodge 36SP
porschenein59@gorge.net

"There comes a time in a mans life where he must take the bull by the tail,, and face the situation."

Last edited by Dieselbird01; 01-07-2020 at 01:21 AM. Reason: Moved this post from a Thread called "Where is power source for fan adjusting knob?" to this closely related Thread.
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
primus heating system aclark HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters 66 02-04-2019 10:01 AM
Heating System Question greaabb How to use the Forum Features 7 12-09-2018 06:31 PM
Primus heating Rick HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters 28 11-07-2011 11:51 AM
Hot Water Only Heating With Primus jimbonich HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters 6 08-18-2010 07:52 AM
primus heating al perna New Members 5 10-24-2009 08:52 PM

Web Search:

All times are GMT -4. The time now is 09:57 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.