Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 03-04-2015, 12:39 AM   #1
Senior Member
 
TonyMac's Avatar
 
Monaco Owners Club
Join Date: Oct 2014
Location: Layton, Utah
Posts: 995
Does your dash air/heat work

My old 89 HR the dash air/heat owrked fine, but my new 06 Safari -- not so much. The air moves fine, but the heat fades if the coach is moving; either the hot water is cooling or the air box is allowing ambient air in. THe ac is a no show, but I think it may need a recharge. I had a few people say the dash air never works, but damn, it's a simple system, why would it not work and why should I accept that?
__________________

__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
TonyMac 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 03-04-2015, 03:02 AM   #2
Junior Member
 
1brokeford's Avatar
 
Join Date: Sep 2014
Posts: 2
Your right !! it should work. The ac system is just a car type system with a normal ac compressor/drier. Nothing really exotic about it. Your dash heat should also put out HOT air if you set the selector to high temp. Sure its a disel and takes a little longer to heat up, but by design, it will heat none the less. You could have low water not allowing it to build enough heat in the system or too much antifreeze not allowing it to heat up enough. Any local COMPETENT shop should be able to check both and fix what needs to be done. The ac could be costly if you have a leaking system, then driers need to be replaced/system flushed ad recharged. A simple addition of a dye will tell the difference or a freon sniffer will work. If you just bought the coach, see your seller if it came from a dealer - -from a individual - your out of luck.
__________________

__________________
1brokeford is offline   Reply With Quote
Old 03-04-2015, 08:48 AM   #3
Senior Member
 
TBS-POPS's Avatar
 
Join Date: Nov 2013
Location: Valley Springs, Ca
Posts: 368
Some vehicle hvac controls are cable controlled and some are vacuum controlled. My previous 97 gasser was vacuum controlled (gm) and my current DP is also vac controlled. The 97 system didn't work right till I found a vac line off under the hood at the vacuum canister. Diesels have a vacuum pump to get vacuum so make sure it is functioning..if the air flow doors aren't working right, the system will do funny things.

Both of our systems worked great.
__________________
2018 Vilano 375FL
2017 F-350 CC DRW 6.7
TBS-POPS is offline   Reply With Quote
Old 03-04-2015, 09:06 AM   #4
Senior Member
 
Old Scout's Avatar
 
Join Date: Nov 2005
Posts: 3,938
Some RVs have lots of fancy air dams on the bottom edge of the front cab to make them more "aerodynamic.." Unfortunately, this can create a partial pressure under the cab front at hi-way speed--bad news if you are also trying to draw in outside air for your dash heat/cool from the same area.

Try setting the air selector switch on 'Max Cool". In effect, this recircs inside air rather than trying to over come the outside partial pressure. Then set the temp switch to full hot or cold, depending on your needs. Yes, this does allow the A/C compressor to run, even with the selector on heat, so if we are going to be in cold weather for awhile, I disconnect the compressor clutch, at the compressor, to keep it from running in cold weather.
__________________
Old Scout
2003 40' MDTS
Garden Ridge, Texas
Old Scout is offline   Reply With Quote
Old 03-04-2015, 09:12 AM   #5
Senior Member
 
jplante4's Avatar
 
Monaco Owners Club
Nor'easters Club
Join Date: Sep 2013
Location: Cape Cod Mass
Posts: 316
I've had a few problems with the dash HVAC on both motor homes. The Monterey had a bad compressor and a jerry rigged heater valve. You had to get out of the coach, open the front access and turn a manual heater valve to set the temp. The cable controlling the stock heater valve had broken. I replace it with an electronic valve from Thermotion.com. I never spent the $1000 to replace the compressor, we just start the genny and use the house air.

The Sahara has a similar issue with the heater valve (cable is detached from the heater valve). I need to see if the cable actually moves before deciding what to do. I didn't get a chance to test the A/C on the Sahara because we bought it in November. I know the compressor runs and the fan on the coils runs so it should work.
__________________
Jerry & Jeanne
1996 Safari Sahara 35' - White Tiger
Cape Cod
jplante4 is offline   Reply With Quote
Old 03-04-2015, 09:37 AM   #6
Senior Member
 
Join Date: Oct 2011
Location: Loudon Couny, TN
Posts: 465
I have a 2013 DP and the cab HVAC barely keeps us comfortable in the front seats if it's pretty cold or hot outside. I think so must glass in the front is just more than the system can deal with.
__________________
Big Dude is offline   Reply With Quote
Old 03-04-2015, 09:40 AM   #7
Senior Member/RVM #90
 
MSHappyCampers's Avatar


 
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 26,345
Quote:
Originally Posted by TonyMac View Post
My old 89 HR the dash air/heat owrked fine, but my new 06 Safari -- not so much. The air moves fine, but the heat fades if the coach is moving; either the hot water is cooling or the air box is allowing ambient air in. THe ac is a no show, but I think it may need a recharge. I had a few people say the dash air never works, but damn, it's a simple system, why would it not work and why should I accept that?

Mine works fine!
__________________
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 03-04-2015, 09:59 AM   #8
Senior Member
 
GaryKD's Avatar
 
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 12,324
Hi TonyMac,
My coach dash HVAC works great. Plenty of either, depending on what is needed.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
GaryKD is offline   Reply With Quote
Old 03-04-2015, 09:59 AM   #9
Senior Member
 
Join Date: Oct 2013
Location: Houston
Posts: 1,067
Mine works great as well. I was surprised after reading many comments about others needing to run their house AC but driving through the Arizona desert in 95+ temps on my maiden voyage it was actually cold up front and the passengers in the back found the AC from the dash keeping them cool as well. Knowing this works so well I would repair mine if (and when) it quits in the future.
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
noserider is offline   Reply With Quote
Old 03-04-2015, 11:25 AM   #10
Senior Member
 
Modela's Avatar
 
Join Date: Oct 2012
Location: Princeton, LA
Posts: 149
On my 99 gas burner, I don't have a complaint on my dash AC, but my heater puts out warm air when I am setting still and only lukewarm when I am driving down the road. I am the second owner and I haven't checked, but I may not have the right thermostat. My Temp gauge never goes to half way, even in the summer.
__________________
2008 Gulf Stream BT Cruiser
Wisdom is not a product of schooling, but of a lifelong attempt to acquire it.
Modela is offline   Reply With Quote
Old 03-04-2015, 03:19 PM   #11
Senior Member
 
Todd157k's Avatar
 
Join Date: Jan 2015
Location: So.Cal.
Posts: 297
Quote:
Originally Posted by TBS-POPS View Post
Some vehicle hvac controls are cable controlled and some are vacuum controlled. My previous 97 gasser was vacuum controlled (gm) and my current DP is also vac controlled. The 97 system didn't work right till I found a vac line off under the hood at the vacuum canister. Diesels have a vacuum pump to get vacuum so make sure it is functioning..if the air flow doors aren't working right, the system will do funny things.

Both of our systems worked great.

My old MH had the same vacuum lines. The a/c vents would close every time I went uphill. I had to add a vacuum canister. I made it out of 10 inch long 3" dia pvc pipe, cap both ends with pvc glue, and thread in a vacuum nipple. Then a check valve from Napa ($3.00) and it worked perfect.
__________________
2013 Itasca Sunova 30A
2006 Crownline 250cr
2012 Ram Laramie Longhorn
Todd157k is offline   Reply With Quote
Old 03-04-2015, 03:24 PM   #12
Senior Member - DIYer
 
Waiter21's Avatar


 
Ford Super Duty Owner
Join Date: Nov 2014
Location: NW Ohio
Posts: 3,387
Many of the Class A use A/C components from Evans Tempcontrol. They have some very useful troubleshooting guides on their web site, including generic diagrams.

Evans Tempcon, Inc - Technical Support

I found them very helpful when I was trying to find some missing A/C knobs from the controller on the dash of my 2001 Mirada

I haven't used the A/C yet in the Mirada, but I was surprised the trucks dash heater kept the coach warm while cruising down the road in sub freezing weather.

JOhn
__________________
1999 Fleetwood Southwind 35S (Ford F53 6.8L V10) - Toad 2003 Saturn Vue.
(www.1999Southwind.com)

It won't do MACH 2, but I can get a sandwich and take a pee.
Waiter21 is offline   Reply With Quote
Old 03-04-2015, 04:23 PM   #13
Senior Member
 
Fleetwood Owners Club
Solo Rvers Club
Join Date: Aug 2010
Location: S Western Indiana
Posts: 825
On my 92 Eagle had to do work on the AC/heat to make it work.

Put in new AC unit, new heater hoses, and a new blower. Lot of stuff but was worth it nice and warm up front. The ac only cools up front but with the fans on comfy. I haven't had it on since the new blower was put in, may be fine now.
__________________
PatStab is offline   Reply With Quote
Old 03-04-2015, 04:32 PM   #14
Senior Member
 
stink's Avatar
 
Join Date: Apr 2012
Posts: 1,414
I've heard you can add a recerculation pump on the heater lines to the front hvac. This will definatly help with the low heater temps if everything else is good. On my coach the front ac is only good for about 10k BTUs so marginal at best on a hot sunny day. Folks have added a curtain right behind seats to "seal" off the front aria and get good results.
__________________

__________________
Dave and Laura & two cats
02 Discovery with Accord toad
retired auto rv tech and teacher, wife rt nurse
stink is offline   Reply With Quote
Reply

Tags
dash, dash air



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
Elandan LCD Dash jbragg Winnebago Industries Owner's Forum 8 12-22-2014 12:08 PM
Headlight High Beam indicator won't work Switchflicke Workhorse and Chevrolet Chassis Motorhome Forum 3 12-04-2014 11:50 AM
Newmar Warranty Work? reubenray Newmar Owner's Forum 22 10-27-2014 06:32 AM
2001 Itasca Suncruiser Dash Switch Degabound Winnebago Industries Owner's Forum 2 02-15-2014 07:40 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:10 AM.


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