Good Sam Club Open Roads Forum: Class A Motorhomes: Air Conditioning Malfunction?
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Air Conditioning Malfunction?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
obiwancanoli

Napa

Full Member

Joined: 02/13/2018

View Profile


Offline
Posted: 07/08/19 03:29pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 2017 Newmar Ventana LE which, due to warranty and repair issues, has not seen weather requiring the use of my a/c system, and until this past weekend, had no need to use it. However, a camping trip to a climate where the outside temps were 100 degrees + also saw inside temps of 95, despite all efforts to cool the inside of the RV, starting at 9 am, and running all day long, and into the night.

The thermostat is a 2-zone system (dual a/c units on top) which, among other modes, includes "Cool" and "Auto". Neither of these modes resulted in anything akin to a/c cooling, although the fans pushed cool-ER air through the system, just not AIR CONDITIONING cool... by comparison, I also ran the a/c system in the cockpit dash, and that works just fine... it's just not designed to cool the entire RV.

I know it worked at one time, since I spent a couple nights in the rig at the time I purchased it, and the a/c system was freezing me out (I was new to the lifestyle, with my first RV, and hadn't properly set the unit).

I've gone over everything I know to figure out and resolve this, and though unsuccessful, hope to do so before my next trip to a warm/hot clime.

Does anyone have a thought on what I'm missing here? Or is it possible I have TWO defective a/c units?

Flute Man

Payson, Arizona

Full Member

Joined: 03/21/2019

View Profile


Offline
Posted: 07/08/19 04:30pm Link  |  Quote  |  Print  |  Notify Moderator

Set both zones to cool with the fan set for auto and lower the temperature setting at least 10° below ambient , wait 10 minutes and see what happens. You should be able to hear the compressors kick in on both units.


Jerry Parr
05 Mandalay 40B
Cat C7 350
04 Honda CR-V
Ham Radio K7OU
[email protected]
602-321-8141
Full-timer

Branson N Tucson

Texas

Full Member

Joined: 05/09/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 07/09/19 04:09am Link  |  Quote  |  Print  |  Notify Moderator

I believe that if you are only on 30 AMP only one unit at a time will run. 50 AMPS both will kick on.

sgfrye

north carolina

Senior Member

Joined: 06/27/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 07/09/19 06:02am Link  |  Quote  |  Print  |  Notify Moderator

was your shore power 30amp or 50amp? if 30 probably only able to run one unit at a time.

our Travel trailer is a 37ft with one 15k btu ducted system in living area. ducts run to bathroom and front bedroom. here in north carolina we can get some extremely hot days. for comparison 2 weekends ago our campsite was in full sun no shade, outside temps were approx 95 degrees. inside TT was 88 degrees by noon with ac running constantly.

when the sun gets low in the evening it cools down quickly and gets comfortable. will go down into 60's if we wanted at night with outside temps in mid 70's

what we do now during day if we can't get a shaded spot is close front bedroom door and turn vents on ac unit to dump straight down and bypasses the ducts.

shrinks the area needed to be cooled and keeps temps in 70's if outside temps are in mid upper 90's

not sure if your units have mechanical issues but just some thoughts to check on first.

obiwancanoli

Napa

Full Member

Joined: 02/13/2018

View Profile


Offline
Posted: 07/09/19 07:20am Link  |  Quote  |  Print  |  Notify Moderator

Yes, it was a 50-amp site...

Gjac

Milford, CT

Senior Member

Joined: 08/16/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 07/09/19 12:16pm Link  |  Quote  |  Print  |  Notify Moderator

I doubt you have two bad A/C's on a 2 year old MH,so I would start with simple things to check. Can you here the compressor kick in when you set it on cool?

obiwancanoli

Napa

Full Member

Joined: 02/13/2018

View Profile


Offline
Posted: 07/09/19 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

Contacted Newmar, rep informed me there's a 2-year warranty on the a/c units, so will have my tech check it out... I CAN hear the compressor come on...

Gjac

Milford, CT

Senior Member

Joined: 08/16/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 07/20/19 09:12pm Link  |  Quote  |  Print  |  Notify Moderator

How did you make out with your AC's, did the tech find the problem?

obiwancanoli

Napa

Full Member

Joined: 02/13/2018

View Profile


Offline
Posted: 07/20/19 09:24pm Link  |  Quote  |  Print  |  Notify Moderator

Haven't taken it there yet... waiting for call re: parts ordered for another issue, he'll have a look at it when I take it in... probably within next couple weeks... I hope

obiwancanoli

Napa

Full Member

Joined: 02/13/2018

View Profile


Offline
Posted: 07/20/19 09:25pm Link  |  Quote  |  Print  |  Notify Moderator

Gjac wrote:

I doubt you have two bad A/C's on a 2 year old MH,so I would start with simple things to check. Can you here the compressor kick in when you set it on cool?


Nope... checked that out couple days ago... fan comes on... I can feel the air flow, albeit not air-conditioned cool air...

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Air Conditioning Malfunction?
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS