|
|
07-22-2019, 01:56 PM
|
#1
|
Senior Member
Join Date: Dec 2007
Posts: 441
|
Dash air question
My wife thinks our dash air is not cooling as good as it has before. With the outside temp about 90-95 we're getting readings at the dash vents of about 70-75. Should it be lower? Not sure what temp to expect. Roof units are not on.
Thanks,
Robert
2014 Tiffin 33AA
|
|
|
|
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!
|
07-22-2019, 02:14 PM
|
#2
|
Senior Member
National RV Owners Club Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,490
|
Best to compare temp near where the intake inside is to compare. Are you moving at 30mph or more or are you parked?
__________________
33' 2008 National Tropical on a Freightliner chassis.We tow a 2001 XJ (Cherokee) RVM#189
|
|
|
07-22-2019, 02:19 PM
|
#3
|
Senior Member
Join Date: Dec 2007
Posts: 441
|
Kahoona,
We are parked.
Thanks,
Robert
|
|
|
07-22-2019, 03:03 PM
|
#4
|
Senior Member
Monaco Owners Club Freightliner Owners Club Holiday Rambler Owners Club
Join Date: Jul 2009
Location: Spring Hill, Florida
Posts: 1,380
|
I usually top off my own before a trip. I have a little cheat sheet I use as a guide.
Outside air 90
Low 40-50psi
High 190-225psi
Center Vent Temp 44-50F
on max cold
Outside air 100
Center Vent Temp 52-60
__________________
98 Endeavor DP, ISB275
RX300, Falcon II hitch, BB Vantage Select
VMSpc, 2002 Grey Ford Powerstroke
TST 507 w/ 10 Sensors
|
|
|
07-23-2019, 07:18 AM
|
#5
|
Senior Member
National RV Owners Club Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,490
|
Quote:
Originally Posted by RJEV
Kahoona,
We are parked.
Thanks,
Robert
|
I bet you will find that it improbes when under way as the engine RPM's increase. If you can get to a 30degree difference you may be doing as well as I ever did even after a complete maintenance including vacuum and fill to factory specs.
If you wish to add coolant you might want to get an AC manifold and automobile adapters. Amazon has for $40 or so. The pressures quoted by Greystroke are correct for most RV AC's. Watch a few youtubes. This may help.
https://www.vehicleairconservices.co...gauge_readings
Never turn the refrigerant can upside down to hurry things along. If you want to speed it up put it in a small bucket of ambient temp water.
Never overfill.
Do not use refrigerant with added oil or leak stop. Adding oil will reduce the efficiency.
Good luck.
__________________
33' 2008 National Tropical on a Freightliner chassis.We tow a 2001 XJ (Cherokee) RVM#189
|
|
|
07-23-2019, 04:30 PM
|
#6
|
Senior Member
Monaco Owners Club
Join Date: Oct 2014
Location: Rigby, Idaho
Posts: 3,902
|
Run your dash air on recirc if possible, instead of binging in hot fresh air an trying to cool that.
__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
|
|
|
07-24-2019, 02:50 PM
|
#7
|
Junior Member
Join Date: Jun 2018
Location: Punta Gorda, FL
Posts: 21
|
Dash air question
If you are certain your compressor and refrigerant system are functioning and not leaking...Find where your condenser/ fan is mounted (mine was under/behind the front axle...see if the fan is running? If not, use a garden hose to squirt the condenser unit and check the dash air temp at the dash vent after 5 minutes of running water...if it gets cooler...you likely don’t have any issue other than the inoperative fan...replace it.
__________________
TMT2
2006 Coachman Cross Country - Freightliner) 384 MBS (Cummins 300 DP/Oman 5.5 Diesel)
Toad: 2016 Mazda 3 on dolly
|
|
|
07-27-2019, 02:08 PM
|
#8
|
Senior Member
Join Date: Jan 2017
Posts: 166
|
I side with your wife. The supply temperate is pretty high. Difference between inside and outside should be more like 40F or even higher. Seems like an air conditioning service is in order.
|
|
|
07-27-2019, 07:37 PM
|
#9
|
Senior Member
Join Date: Sep 2009
Location: Central Indiana
Posts: 1,422
|
Dash air question
Our dash air is 55 degrees, but there have been times that will not keep up with the heat load.
|
|
|
07-28-2019, 10:56 AM
|
#10
|
Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,519
|
I'm on your wife's side - it should get colder than 70's unless it is also 90's inside the RV. 35-40 degree drop is typical, I think.
x2 on re-circ vs outside air - big difference. Sometimes the outside air door stays open even though the control is set to re-circulate (aka MAX). That can be fixed.
Adding refrigerant is easy if that's the problem. Of course, that means there is a refrigerant leak somewhere and you will have to do it again until you get the leak fixed.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
|
|
|
07-28-2019, 11:22 AM
|
#11
|
Senior Member
Join Date: Dec 2007
Posts: 441
|
Just added 3 pounds Freon. All cool for last 24 hours. Hopefully it will hold through the summer. Techs couldn’t find any leaks. I stayed with them while they were working on it and if it’s leaking it must be where the lines are somewhere inside and can’t be seen.
|
|
|
07-29-2019, 07:22 AM
|
#12
|
Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,518
|
Quote:
Originally Posted by Carli Lloyd
When trying to start my 2003 part dx the engine will turn over but has problem doing so. I have noticed a blinking green light on the dash.
Do you have any idea regarding that?
|
Best to start your own thread. what's a "part dx"?
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
|
|
|
07-30-2019, 07:20 AM
|
#13
|
Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Feb 2012
Location: Central Arkansas
Posts: 1,353
|
Quote:
Originally Posted by RJEV
Just added 3 pounds Freon. All cool for last 24 hours. Hopefully it will hold through the summer. Techs couldn’t find any leaks. I stayed with them while they were working on it and if it’s leaking it must be where the lines are somewhere inside and can’t be seen.
|
3 pounds is a lot. The Denso factory manual shows my Freightliner chassis is filled with 3.8#.
Pretty big leak somewhere.
__________________
2008 Fleetwood Bounder 38S 2015 Jeep Cherokee Trailhawk 2021 Polaris Slingshot R Limited
|
|
|
07-30-2019, 07:55 AM
|
#14
|
Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,518
|
Quote:
Originally Posted by mevman
3 pounds is a lot. The Denso factory manual shows my Freightliner chassis is filled with 3.8#.
Pretty big leak somewhere.
|
Unusual that you will read about an AC issue that doesn't require a whole recharge as it stops working when it's almost empty.
A big leak, or a small one that has been leaking awhile.
Hopefully they put some UV dye in the last recharge so they can find the leak.
Look at all hoses and connections and compressor seals for dirt buildup that is indicative of oil leaking out (with the freon) and attracting the dirt.
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|