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 09-02-2013, 12:27 AM   #1
Senior Member
 
dsbear's Avatar
 
Join Date: Jan 2013
Posts: 628
This weekend we were boondocking and tailgating for the college football opener. The burnt air to was 105 parked on asphalt how cool should I expect the interior of the RV to be? The inside temp got up into the high 90s with ACs set at 70. Is this normal? Any ideas or thoughts would be appreciated. Also any comments as to brand and model of your favorite cooling system. I'm very disappointed in my '11 Damon Astoria's performance in the heat.
__________________

__________________
dsbear 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 09-02-2013, 12:52 AM   #2
Senior Member
 
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,217
Roof air's are frequently poorly installed. Pull the plastic hood off & you will probably find the foam strip does not seal the hot coils to the hood, the foam strip wanders around creating poor air flow for wasting heat. And inside, if the down duct isn't sealed well against the intake, you wind up recirculating hot intake air into the cold air output. I've never seen an excellent job of installation.

Throw out the cheap foam strip, get some solid spongy stuff @ H.D. or Lowes & reseal the hodd tot he hot coils, following the top of the hot coil fan area well. IIRC I used a double layer of ~7/16" x 1.5" foam. I didn't even tell the wife I'd done anything, and she immediately remarked, "what did you do to the A/C? Its working great." I told her I redid the seal on one unit, and she said, "well get up there and do the other one!" It was sweet.
__________________

__________________
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 09-02-2013, 01:04 AM   #3
Senior Member
 
sswilson's Avatar
 
Winnebago Owners Club
Join Date: Nov 2012
Location: Cobble Hill, B.C.
Posts: 1,283
The AC was probably in for the fight of it's life with those types of o/s temps working on the windows and shell of the rig. Unless the sun can be totally blocked to assist them, I would be real surprised to see a swing of more than 20-25 degrees from ambient. Setting at 70 does not mean it is going to get there, that is just a destination and would seem like an impossible one in that heat. A 25 degree swing would and should feel cooler/colder once you enter the rig. Maybe it was at it's max?
__________________
Steve and Sheri with Archie (and Hiro, R.I.P.)
2000 Winnebago 35U, Ford F53/6.8l V10
F150 Ford and Vintage Aspencade.
sswilson is offline   Reply With Quote
Old 09-02-2013, 04:19 AM   #4
Community Administrator
 
Clifftall's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Aug 2009
Posts: 29,139
I've also heard that a 20 degree swing is all you can expect. We tinted all our windows , made an inside form fitting cover made out of beige blackout material for the shower skylight , had the cockpit curtains backed with blackout material as well. Also put Auto Motion shades on all windows and have inside sunscreen material on windshield held up with suction cups. These have made an enormous improvement.
__________________


Cliff,Tallulah and Buddy ( 1999-2012 )
Clifftall is offline   Reply With Quote
Old 09-02-2013, 06:50 AM   #5
Senior Member
 
dsbear's Avatar
 
Join Date: Jan 2013
Posts: 628
I would have been happy with a 20 degree swing but I was dealing with a 5-7 degree swing we had all of the shades down and started with the coach at 65 degrees at 10 AM. one additional fact both units were blowing hot air. Confussed
__________________
dsbear is offline   Reply With Quote
Old 09-02-2013, 07:02 AM   #6
Registered User
 
Join Date: Aug 2013
Posts: 307
We block all our skylights, and most windows. I actually put foil over the slide windows, or any window (exept windshield) that the sun can hit directly, ie east or west.
Never thought about resealing the a/c. And that's my what I do for a living, along with plumbing & electric.
__________________
malexander is offline   Reply With Quote
Old 09-02-2013, 07:04 AM   #7
Senior Member
 
palehorse89's Avatar


 
Newmar Owners Club
Join Date: Oct 2009
Posts: 7,777
When you start them up after the fans start can you hear the compressors kick in? As others stated 20 deg. from intake to exhaust vent. Your wife might just have one of those temperature probes that you stab into a roast to check internal temps. of meat, put it in the intake vent for a bit then the exhaust vent and see what temp. difference you have. If as you say with out going through what I just posted and you are sure it is just blowing hot air ,it is time to head to the roof and start troubleshooting them, start capacitors burned out? Compressors burned up from operating on low voltage? What kind of A/C units are they and model, maybe someone then will chime in and be able to direct you and tell you where to start.
__________________
2000 Newmar MADP 4060, 350ISC, Spartan MM, IFS 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006Ultra & 1989 Springer
palehorse89 is offline   Reply With Quote
Old 09-02-2013, 07:06 AM   #8
Senior Member
 
H. Miller's Avatar
 
Monaco Owners Club
Texas Boomers Club
Join Date: Jan 2009
Posts: 2,523
Interior filters were clean????
__________________
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 09-02-2013, 07:22 AM   #9
Senior Member
 
bruceisla's Avatar
 
Join Date: Oct 2012
Location: St. Lucie West, FL
Posts: 5,134
Quote:
Originally Posted by dsbear View Post
I would have been happy with a 20 degree swing but I was dealing with a 5-7 degree swing we had all of the shades down and started with the coach at 65 degrees at 10 AM. one additional fact both units were blowing hot air. Confussed
Well .... "hot" is a relative thing. For any reasonable diagnosis you will need to accurately measure the input and output temperatures. An infrared gun thermometer works fairly well. The referenced 20 degree swing should be between input and output ... outside air temp can be different. As suggested, heat load (heat thru glass and the number of people in the RV) is a likely culprit. That said, I've never actually dealt with outside air temps of 105.
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
bruceisla is offline   Reply With Quote
Old 09-02-2013, 07:42 AM   #10
Senior Member
 
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
Having a dark colored paint on your roof likely won't help anything either. I've never understood why they do that. Situations like this one are a pefect example of why you shouldn't?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 09-02-2013, 07:53 AM   #11
Senior Member
 
dsbear's Avatar
 
Join Date: Jan 2013
Posts: 628
Update

1. The units are Coleman Mach 8
2. I don't have temp probes but will get one and check the delta
3. All standard precautions were taken
4. It was like the compressors on both units just quit
5. This AM temp in the coach is 68
6. The roof is white.
__________________
dsbear is offline   Reply With Quote
Old 09-02-2013, 08:03 AM   #12
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,829
Your results sound rather normal to me.. One thing you should have done that might help is a full PM run on the Air conditioners.. What is a PM run.

1: Clean interior intake filters Leave out for now.
2: Up on the roof remove the outer cover (Shroud)
2A: Removoe the inner cover on the condenser coils (Hot coils) and clean them,
2B: Same for the evaporator (cold) coils
3: Replace covers
4: Clean everything else
5: IF there are lubrication points.. LUBE. (Note you may need to move this step up a notch or two)
6: Replace all covers not yet replaced and lock it down
7: replace filters (inside)

The idea is to maximize air flow through the coils.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 09-02-2013, 09:12 AM   #13
Senior Member
 
bruceisla's Avatar
 
Join Date: Oct 2012
Location: St. Lucie West, FL
Posts: 5,134
Quote:
Originally Posted by dsbear View Post
Update

1. The units are Coleman Mach 8
2. I don't have temp probes but will get one and check the delta
3. All standard precautions were taken
4. It was like the compressors on both units just quit
5. This AM temp in the coach is 68
6. The roof is white.

BTW, outside factors like the temperature of the ground/pavement under the RV when you parked it are going to influence the inside temps. The bottom of your RV may or may not be well insulated. Asphalt radiates heat for a long time once it's hot.
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
bruceisla is offline   Reply With Quote
Old 09-02-2013, 09:51 PM   #14
Senior Member
 
mgscott4's Avatar
 
Workhorse Chassis Owner
Join Date: May 2009
Location: Kansas City, MO./Pollock, LA.
Posts: 1,549
Reflectix on the inside of the windshield and front side windows makes a big difference for a few bucks.

Reflectix is silver plastic bubble wrap.

Shop Reflectix 25-ft x 48-in Reflective Insulation at Lowes.com
__________________

__________________
06 Hurricane 34FT WH W20 Chassis 8.1L 132K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, WG T4 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee
mgscott4 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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:59 AM.


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