Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
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 03-11-2010, 06:58 AM   #1
Senior Member
 
H. Miller's Avatar
 
Monaco Owners Club
Texas Boomers Club
Join Date: Jan 2009
Posts: 2,523
Chassis Air Conditioner

The engine driven compressor puts out cold freon to the front. Up front the vacuum system does not open/close the vents in the a/c mode (heat mode seems to work) The vacuum pump works and all lines are connected.
So I get the manufacturers name and proceed to call them in hopes of obtaining a trouble shooting guide..... they're out of business!! And just recently! Their website says 45 years in biz. Poof they're gone.
SCS/Frigette RIP
At least their website still lists local (mostly trucking) concerns that were representatives and one of those is willing to check the system. We'll see how that works out.
__________________

__________________
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
4"girls" (3 Irish Setters - 1 Retriever) - RIP Annie
H. Miller 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 03-11-2010, 07:46 AM   #2
Senior Member
 
Join Date: Oct 2005
Posts: 1,060
If it like mine there is a small vacuum pump that operates the valves. It pops the fuse so no vacuum. Where it is located it is almost impossible to work on.I got tired of changing the fuse so tied the damper open with a wire tie.
BOB
__________________

__________________
bldrbob is offline   Reply With Quote
Old 03-11-2010, 08:56 AM   #3
Senior Member
 
Retired and Happy's Avatar
 
Join Date: Feb 2004
Location: Stone Mountain, GA
Posts: 941
Could be a vacuum leak somewhere? Mine got disconnected during some maintenance last summer. it defaulted to the defrost mode so I always had warm air hitting the windshield and heating the cockpit unless the unit was turned off.
__________________
Ken, Judy, and the Angels--2005 Fleetwood Southwind--2008 Cargo Trailer--2003 EZGO Golf Cart
Retired and Happy is offline   Reply With Quote
Old 03-11-2010, 02:06 PM   #4
Senior Member
 
H. Miller's Avatar
 
Monaco Owners Club
Texas Boomers Club
Join Date: Jan 2009
Posts: 2,523
Bob & Ken,
Our vac. pump is in plain view. Can hear it while it's on. Comes on about every 2 minutes and "builds vacuum" for 10-15 seconds - then off.
Bob, how did you get to the "damper"?
Thanks.
__________________
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
4"girls" (3 Irish Setters - 1 Retriever) - RIP Annie
H. Miller is offline   Reply With Quote
Old 03-11-2010, 09:55 PM   #5
Senior Member
 
Join Date: Oct 2005
Posts: 1,060
The dampers on my Tradewinds are located under the dash accessed from inside .Think thin and follow the ducts.
BOB
__________________
bldrbob is offline   Reply With Quote
Old 03-14-2010, 09:43 AM   #6
Senior Member
 
jeepfreak's Avatar
 
Join Date: Mar 2003
Location: Home is where we park it
Posts: 417
I think you have a vacuum leak. the pump shouldn't be cycling that much. It should be holding the vacuum until you change to another position. I would check for a cracked hose.
__________________
2007 Allegro 34wa .WH w20 8.1 6speed. Bow tie powered 79 CJ7 or a 2014 Jeep Unlimited Rubicon Toad.
jeepfreak is offline   Reply With Quote
Old 03-14-2010, 12:23 PM   #7
Member
 
wolfer's Avatar
 
Join Date: Jan 2010
Posts: 51
I have a 94 Safari Sahara which is much older than your beaver but I recently fixed an issue. I have also replaced the pump a few years ago. On mine the pump is on a crossmember under the bed in the engine compartment. You can hear it when you turn the key on. My dash vacuum would not function from defrost to dash to floor but the pump was creating vacuum. I found a small pot under the hood in front left hand side. (round Plastic) that has a hose that had come off. Works good now.
__________________
wolfer is offline   Reply With Quote
Old 03-14-2010, 01:00 PM   #8
Senior Member
 
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,217
It is not uncommon to have a vacuum leak, but w/the vac cycling only every coupla minutes, I'd say there is enough vacuum to operate the mode shifts. If the modes don't shift, there is a problem w/the switch (this is unusual tho not unheard of as the switches are pure mechanical).

Not changing from hot to cold seems to be the problem. That is usually a mixer valve setup, which is likely a vacuum operated switch behind/under the dash some place that will let cold into the up front heat exchanger when you switch to AC or MaxAC settings. The gizmo will have a vacuum line to it on one side, and linkage to move a lever on the other side of the vacuum pot. If there is a vacuum leak to the switch it won't open the valve; if there is full vacuum maybe the valve is stuck. Sometimes a stuck valve can be rehabilitated at least for a while by cleaning & lubrication.
__________________
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 03-16-2010, 02:24 PM   #9
Senior Member
 
H. Miller's Avatar
 
Monaco Owners Club
Texas Boomers Club
Join Date: Jan 2009
Posts: 2,523
Thanks folks... Have several things to check but just now it's raining in Austin, TX!!! Manana.
__________________
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
4"girls" (3 Irish Setters - 1 Retriever) - RIP Annie
H. Miller is offline   Reply With Quote
Old 03-17-2010, 12:33 AM   #10
Member
 
wolfer's Avatar
 
Join Date: Jan 2010
Posts: 51
hot or cold on smc

Again my coach is a 94 Safari but there is a cable that runs thru the dash to a water valve on the heater hose that cuts off the hot water to the dash and allows your air conditioning to work. My cable end slipped on the water valve and would not close it all the way and I thought I had lost my air conditioning but shortened up the cable and re tightened the clamp higher on the water valve on the heater hose and air came back and the pipe to air conditioning iced up like it should but the air pot I was talking about on my coach is on the left side by the heater fan under the hood it is round and black in color with a rubber vacuum line to it.
__________________

__________________
wolfer 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
Bedroom Air Conditioner gypsyjim Newmar Owner's Forum 2 08-28-2009 08:44 PM
Duotherm air conditioner tom49 Monaco Owner's Forum 13 07-13-2009 01:35 PM
Four Winds Hurricane leaky air conditioner Ricka Thor Industries Owner's Forum 2 07-11-2009 01:29 PM
Freightliner Chassis without Air Ride? mxrcr4 Freightliner Motorhome Chassis Forum 2 01-01-2009 05:47 PM
Chassis Air Dryer sjholt Monaco Owner's Forum 1 06-28-2007 04:53 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:10 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.