RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class C 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 06-08-2019, 09:07 PM   #1
Junior Member
 
Join Date: May 2019
Posts: 9
AC when on generator

Today I went to the storage lot to do some work on my Dutchman Dorado 26BE. It was very hot and humid, so I started the generator (Onan 5000), thinking I could get the overhead AC to work. Only the fan came on. Is this normal, or was there something I should have done? We have had it for less than a month and itís our first class C, so still learning. I am planning on doing some boondocking this summer, so want to have AC if needed.
__________________

jcgso 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 06-08-2019, 10:00 PM   #2
Senior Member
 
LJowdy's Avatar


 
Join Date: May 2013
Location: Ontario, California
Posts: 2,076
First thing is to make sure the A/C is actually in the on/Cool position. Many A/C units have 'fan only' If that's confirmed then you probably have a bad A/C
__________________

__________________
2016 Newmar Dutch Star 4369
Newmar Owners Club
USAF 1966-1969,- Law Enforcement 1969 - 2003, Unemployed (retired) since March 2003
LJowdy is offline   Reply With Quote
Old 06-08-2019, 10:11 PM   #3
Senior Member
 
Join Date: Jul 2016
Posts: 366
How long did you run the a/c before you figured only the fan would come on?

RV a/c's often have a lengthy delay before the compressor kicks in.
irishguy is offline   Reply With Quote
Old 06-09-2019, 12:38 AM   #4
Senior Member
 
Arch Hoagland's Avatar
 
Monaco Owners Club
Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 8,403
My air conditioner fans will run about three to five minutes before the compressor kicks in. Both on campground power and generator.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS

Don't know where I'm going, spose I'll get there anyway.
Arch Hoagland is offline   Reply With Quote
Old 06-09-2019, 05:52 AM   #5
Senior Member
 
spdracr39's Avatar


 
Monaco Owners Club
Join Date: Jul 2016
Location: Cabot, Arkansas
Posts: 1,784
I have noticed that the delay on mine is longer if it happens to lose power while the compressor is running then you turn the unit back on. As stated above it can be as long as 5 minutes. On my Dometic thermostat there is an hourglass that shows while it is waiting on the compressor to come on.
__________________
2004 Beaver Monterey Laguna/2015 Chevy Equinox
2014 Chaparral 327RLKS 5'er (FOR SALE)
2017 GMC 2500HD SLE 6.0L Z71 4x4 Standard Bed
https://wordpress.com/posts/enjoying-life.net
spdracr39 is offline   Reply With Quote
Old 06-09-2019, 05:59 AM   #6
Senior Member
 
Join Date: Jul 2014
Posts: 17,550
When I first start my generator, the automatic transfer switch, 30 second delay runs down, and then the AC comes right on. Both fan and compressor, cooling the RV.

If I was to turn it OFF and quickly back ON, then the delay in the AC system starts, allowing the compressor pressures to equilize. That can be up to 10 minutes, never timed it.
twinboat is online now   Reply With Quote
Old 06-09-2019, 06:42 AM   #7
Junior Member
 
Join Date: May 2019
Posts: 9
LJowdy, I did make sure it was in the cool position. I tried switching back and forth to see if that would help. Thanks for all the replies. It sounds like I may have a problem.
jcgso is offline   Reply With Quote
Old 06-09-2019, 07:00 AM   #8
Senior Member
 
Sbrownstein's Avatar
 
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,176
Switching back and forth between off and cool will probably actually cause an additional delay. A/C compressors do not start well if there is system pressure from a previous run. Many thermostats enforce a 3 to 5 minute delay as a "compressor protector." Undoubtedly the flashing hourglass is indicating that the thermostat thinks the compressor has just run and is waiting for the head pressure to drop before restarting.

Leave the thermostat in the cool position and put the fan in the "auto" mode. If after 5 minutes or so you the compressor fails to start, you may have a real problem with the compressor or capacitor or somewhere else in the system.
__________________
Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
Sbrownstein is online now   Reply With Quote
Old 06-09-2019, 09:41 AM   #9
Senior Member
 
Join Date: May 2017
Posts: 118
I have a similar problem in my 2008 Four Winds. It sometimes takes a while to kick in but in my case it is the transfer switch. I guess it transfers power somehow to run appliances and such when the generator is running. Iím not savvy enough to really know.
Sounds like a complicated replacement for a layman though. I gather all the electrical runs through it and can really muck things up If you wire something wrong.
sgpd1sam is offline   Reply With Quote
Old 06-10-2019, 10:49 PM   #10
Junior Member
 
henzlgc's Avatar
 
Join Date: Jul 2017
Posts: 1
Be sure the circuit breaker on the generator has not tripped
henzlgc is offline   Reply With Quote
Old 06-14-2019, 10:01 AM   #11
Senior Member
 
Stevegd007's Avatar
 
Forest River Owners Club
Ford Super Duty Owner
Join Date: Mar 2005
Location: Cochise County, Arizona
Posts: 752
Quote:
Originally Posted by henzlgc View Post
Be sure the circuit breaker on the generator has not tripped
Yep! When your Genny is running an you have no 110v power to the RV is usually the breaker directly on the Genny. Check that.
__________________
Steve & Leslie
Forest River 2018 Forester 3011DS
Honda 2010 CR-V "Toad"
Stevegd007 is offline   Reply With Quote
Old 06-14-2019, 08:16 PM   #12
Junior Member
 
Join Date: May 2019
Posts: 9
Hoping to get to it tomorrow. I will check the breaker.
jcgso is offline   Reply With Quote
Old 06-14-2019, 10:58 PM   #13
Senior Member
 
Join Date: Jan 2009
Posts: 1,868
Quote:
Originally Posted by henzlgc View Post
Be sure the circuit breaker on the generator has not tripped
The circuit breaker is fine since the fan runs.

OP, crank the genset and make sure you have 120 volts inside the rig. Then put thermostat in cooling mode, set the temperature below the current inside temp, and put the fan in auto. There may be a short delay so give it a few minutes before touching anything else. If only the fan ends up running, then some troubleshooting will need to be done. Could be something as simple as a broken/loose T-stat wire or bad T-stat itself.
__________________
03 Itasca Sunova, Workhorse P32 with the 8.1 and 4L85-E
Mudfrog is offline   Reply With Quote
Old 06-16-2019, 06:56 PM   #14
Junior Member
 
Join Date: Nov 2016
Posts: 8
Blog Entries: 1
NO A/C on generator

A/c works on shore power. The a/c has worked on generator since i've owned its a 2018 four winds only one a/c. No fan, Nothing on a/c. HELP
__________________

hermoneypit is offline   Reply With Quote
Reply

Tags
generator



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
Want my generator on/off switch to illuminate only when generator is running FloridaCanuk RV Systems & Appliances 17 08-23-2018 04:43 PM
2006 Travel Supreme Select 500hp Cummins, 1200 ONAN generator generator d or will no Bev51 Travel Supreme Owner's Forum 4 06-13-2018 06:23 PM
Harbor Freight Predator 3500 Generator-backup Generator Meaney77 RV Systems & Appliances 5 03-13-2018 03:12 PM
Automatic generator start system/Generator/shoreline automatic changeover switc Rac912 RV Systems & Appliances 14 01-12-2016 11:51 AM
Military Generator INSIDE prepped Generator Area WorkRVing 5th Wheel Discussion 21 11-18-2015 06:00 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.