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 07-08-2014, 12:04 AM   #1
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
Starting air conditioner

We just got a 1994 Mountain Aire. No manual. I've been trying to turn on the A/C before we take it out. The way it comes on is this: turn on generator, turn on battery switch. Turn on thermostat power, then turn on Heart interface. Then, the fan begins to blow. It will usually shut off by itself in a minute or so. Then I turn off the Heart interface, turn off the power to thermostat, turn it back on, then the Heart button gets switched on and it starts again. The air isn't cool, but I haven't let it blow for 10 minutes either. I don't want to run out of gas just playing with it.
Can this be right?
__________________

__________________
HomeAway 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 07-08-2014, 12:59 AM   #2
Senior Member
 
Pexring's Avatar
 
Newmar Owners Club
Holiday Rambler Owners Club
Join Date: May 2014
Location: Aberdeen, SD
Posts: 586
What brand of A/C does the unit have? How did you figure all this out? Definitely have never heard of running an A/C this way. Give it a good run. You won't use much gas letting it run for a half hour or hour. Once we know the brand of a/c we'll be able to tell you how to run things with a whole lot less steps!
__________________

__________________
2000 Newmar Dutch Star 38' Class A, Spartan chasis, MM-2242, Cummins 330 pulling a 2014 Ford Focus.
Pexring is offline   Reply With Quote
Old 07-08-2014, 07:07 AM   #3
Senior Member
 
Tyler6357's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Aug 2011
Location: Santa Barbara, CA
Posts: 333
Most coaches are set up so that it won't let you run the generator if your gas level is below 1/4 of a tank so there is no way you can run out of gas running the generator.
__________________
Tyler6357 is offline   Reply With Quote
Old 07-08-2014, 09:12 AM   #4
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
Pexring,
I'm assuming it's the original Dometic a/c. The thermostats are that brand. I called the previous owner last night and he said all he did was turn it on without the Heart interface ever being on. Never had a problem with it.
__________________
HomeAway is offline   Reply With Quote
Old 07-08-2014, 09:22 AM   #5
Senior Member
 
gemini5362's Avatar
 
Tiffin Owners Club
Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,078
Is it possible you are not waiting long enough for the AC to kick on. A lot of them from the time you get power on and the thermostat set take a few minutes to come on. It is not an instant thing.
__________________
gemini5362 is offline   Reply With Quote
Old 07-08-2014, 09:29 AM   #6
Senior Member
 
TonyDi's Avatar


 
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 10,400
On my DSDP I start the genny, turn the thermostat on, set it to cool and wait about 5 minutes for the air to start blowing cold. The fans will come on as soon as you turn the system on, but the compressor needs a bit of time.
__________________
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
TonyDi is offline   Reply With Quote
Old 07-08-2014, 09:39 AM   #7
Senior Member
 
pagosajoe's Avatar
 
Fleetwood Owners Club
Join Date: May 2011
Location: Southwest
Posts: 1,548
__________________
Joe and Debbie, Emma the Aussie Cattle Dog who adopted us
2012 Discovery 36J, Blue Ox and Air Force One, 2010 GMC Acadia Toad
USAF (Ret) WDM http://wd0m.com
pagosajoe is offline   Reply With Quote
Old 07-08-2014, 10:39 AM   #8
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
Ok, I'll try that as soon as I go out there. I'll let you know.

One further question. I took a fan out, plugged it in and with the gen running it didn't start UNTIL I turned the Heart on.
__________________
HomeAway is offline   Reply With Quote
Old 07-08-2014, 11:39 AM   #9
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
I turned the gen on and the thermostat. I also turned the battery on. I waited 15 minutes. The lights were on on the thermostat, but nothing happened. During that time the Heart interface reading went from OK to zero even though it was off.

There are 2 reset buttons behind the batteries and inverter. Should I push them? Should I plug the coach into the house or run the gen or do nothing but push the buttons?

I want to take it for servicing, but hubby wants to take it boondocking for a few days first. I don't agree, but he's paying the bills.
Thanks for any help you can suggest. I'm 63, recovering from double mastectomies surgery, and I am in the dark when it comes to things like these.

Sally
__________________
HomeAway is offline   Reply With Quote
Old 07-08-2014, 12:46 PM   #10
Senior Member
 
chboone's Avatar


 
National RV Owners Club
Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 2,933
I assume the thermostat is set to cooling mode and set temperature is set lower the ambient air temp. Wouldn't think the inverter, which the Heart interface is for would have anything to do with the AC. May want to have the previous owner walk you through the operation on the phone while your in the coach. Sorry to hear about your double mastectomies*a friend of our the same age as you went through it that last year.

Chuck
__________________
1999 35 ft. Dolphin 5350,F53 Chassis Chassis build date 1/99, Banks System, 5 Stars Tune, Air Lift Air Bags front & rear, Koni Shocks,Blue OX TruCenter,TigerTrak track bars front & rear, Roadmaster 1-3/4" rear auxiliary sway bar,2004 F450 Lariat 6.0 Diesel Crew Cab DRW with B & W Custom Truck Bed, 1994 36 ft. Avion 5th Wheel
chboone is offline   Reply With Quote
Old 07-08-2014, 12:51 PM   #11
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
Ty Chuck. I did a walk through with the previous owner last night. I already had set it to cool and a lower set temp than the ambient temp.
Any guesses about the reset buttons?
__________________
HomeAway is offline   Reply With Quote
Old 07-08-2014, 05:20 PM   #12
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
I called Newmar and they couldn't help over the phone. I've come to the conclusion that we need to stay where they have hook ups until we can get it to an authorized dealer
Again, thanks everyone.

Sally
__________________
HomeAway is offline   Reply With Quote
Old 07-08-2014, 09:13 PM   #13
Senior Member
 
chboone's Avatar


 
National RV Owners Club
Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 2,933
Do the two buttons look like they are tripped, popped out? Probably a circuit breaker for the 12 volt power. If you do push them I would turn all power off first 12 and 120 volt since it's unknown what they are for.

Chuck
__________________
1999 35 ft. Dolphin 5350,F53 Chassis Chassis build date 1/99, Banks System, 5 Stars Tune, Air Lift Air Bags front & rear, Koni Shocks,Blue OX TruCenter,TigerTrak track bars front & rear, Roadmaster 1-3/4" rear auxiliary sway bar,2004 F450 Lariat 6.0 Diesel Crew Cab DRW with B & W Custom Truck Bed, 1994 36 ft. Avion 5th Wheel
chboone is offline   Reply With Quote
Old 07-09-2014, 02:39 PM   #14
Senior Member
 
Country Coach Owners Club
Join Date: Jan 2006
Location: Redding
Posts: 3,412
Quote:
Originally Posted by HomeAway View Post
Ok, I'll try that as soon as I go out there. I'll let you know.

One further question. I took a fan out, plugged it in and with the gen running it didn't start UNTIL I turned the Heart on.

Good test!

The fan would not run until the inverter/batteries were turned on because the generator power is not getting to the coach ac circuits.

With the generator running and Inverter turned off:

Check your 110v ac circuit breaker panel to make sure all breakers are turned on. There are usually main breakers and also a breaker for each rooftop AC unit.

Also check or reset your ground fault GFI receptacles, bathroom and galley, to be sure 110v power from the breaker panel can get to the outlets. This could be your fan outlet problem but does not affect the rooftop AC operation.

If the above breakers are not the problem, then the likely suspects are the coach 110v Transfer Switch, Generator Power system or the Roof top AC itself.

The inverter and its buttons do not impact the roof AC unit.

Good luck. RV electric is a puzzle for most of us at first.
__________________

__________________
Dean
1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
deandec is offline   Reply With Quote
Reply

Tags
air conditioner



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
Advent Air conditioner builder RV Systems & Appliances 14 11-09-2016 06:32 PM
Coleman basement air conditioner Bunky 1 RV Systems & Appliances 39 02-25-2016 05:56 PM
Saving Money ► Air Fresheners Doggy Daddy RV'ing On A Budget 1 09-27-2014 09:50 AM
Add seperate power source for air conditioner yohop Travel Trailer Discussion 6 02-11-2014 11:07 PM
Propane stove top effects front air conditioner Rolly Zimmer Monaco Owner's Forum 6 08-28-2013 07:43 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:30 AM.


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