Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > National RV Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 07-28-2018, 10:16 PM   #1
Junior Member
Join Date: Jul 2018
Posts: 1
Question Running A/C from generator

We're newbies and can't figure out how to switch the a/c from shore power to generator. I thought coach had ATS, but doesn't seem to work. Coach is 2005 Dolphin.
Any suggestions greatly appreciated.
Pfdivelaw is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! 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 07-28-2018, 10:40 PM   #2
Senior Member
Join Date: Aug 2010
Posts: 2,772
If you have an ATS that is working, it should default to generator whenever gen power is available. If it does not you either do not have ATS or yours is defective.
Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
firedoc is offline   Reply With Quote
Old 07-29-2018, 12:17 AM   #3
Senior Member
chboone's Avatar

National RV Owners Club
Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 3,556
Without a transfer switch you need to plug the shore cord into a receptacle that is powered by your generator. The receptacle should be in the same bay your shore cord is stowed.
1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000,1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
chboone is offline   Reply With Quote
Old 07-29-2018, 12:26 AM   #4
Senior Member
Join Date: Sep 2012
Posts: 8,055
And just to help out A/C = Air Conditioning. AC = Alternating Current power, generally 120 or 240 VAC.

If you are really trying to switch the Air Conditioning you might get better results with a better description of what you are doing.
nothermark is offline   Reply With Quote
Old 07-29-2018, 12:32 AM   #5
Senior Member
TonyMac's Avatar
Monaco Owners Club
Join Date: Oct 2014
Location: Layton, Utah
Posts: 3,557
DO NOT run the A/C while switching AC from shore to genset, or vice versa. Reduce your AC load as much as possible then switch AC sources. I can get mine as low as about 5 amps, fridge to propane and shut off the charger as well. You should then wait several minutes for the pressures in the A/C to equalize before you start them on their new source of AC.
2006 Monaco Safari Cheetah 40PMT
TonyMac is offline   Reply With Quote
Old 07-29-2018, 06:26 AM   #6
Senior Member
Join Date: Jul 2014
Posts: 28,964
Check the breakers on the generator itself. If they are tripped, it will not switch over.
twinboat is offline   Reply With Quote
Old 07-29-2018, 09:09 AM   #7
Senior Member
JJH3rd's Avatar
National RV Owners Club
Workhorse Chassis Owner
Join Date: Feb 2011
Location: Covington, GA
Posts: 714
Send a message via Skype™ to JJH3rd
From sad experience I have developed this protocol: turn off everything that draws a significant load: HVAC, Refrigerator, then shut down the generator, THEN flip the breaker at the power pole to ON. I do the reverse when disconnecting prior to moving.
If things get hung up (fail to start), I cycle the battery disconnect and that seems to reset the electrical system.

BTW, when you flip the 50A breaker at the power pole, you should hear a "thunk" or "click" from the transfer switch in the electrical bay. If you don't the transferr switch is suspect.

Also, the two circuit breakers on the generator need to be checked to be sure that they are "on". The HVAC "probably" won't work if only one side to the 240 V is powered, unless you flip the switch in the electrical bay (the one behind the CATV plug), to down for 30A (1 comressor) HVAC.

I know, TMI, but troubleshooting can be complicated.
J.J. Hayden (KN4SH)
Covington, GA
2005 National Dolphin 5342
JJH3rd is offline   Reply With Quote


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
Running down the road with generator running sgrol 5th Wheel Discussion 32 12-26-2015 08:20 PM
Engine smoking & running rough after running gererator milehitruck Caterpillar Engine Forum 4 10-09-2015 05:54 PM
What size Inverter For Running 24" TV While Running ? Fourwinds28A MH-General Discussions & Problems 9 09-11-2015 08:35 PM
Running propane heater while running bandmbrown MH-General Discussions & Problems 32 11-17-2014 07:41 PM
Furnace keeps running and running and... marcdohc RV Systems & Appliances 2 10-10-2012 09:58 PM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 03:51 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.