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 11-24-2013, 02:20 PM   #1
Junior Member
 
Join Date: Jan 2012
Posts: 15
RV generator will not run the AC and microwave together

Our Holiday Rambler Vacationer is 30 amp and the generator is an Onan 5500 and when we are on the genrator and turn on the microwave, the AC and Microwave kick off. RV generator will not run the air cond. and microwave at same time. Any ideas?
__________________

__________________
tluehrs 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 11-24-2013, 02:27 PM   #2
Senior Member
 
adonh's Avatar
 
Join Date: Apr 2013
Location: Missouri City, TX
Posts: 1,306
Quote:
Originally Posted by tluehrs View Post
Our Holiday Rambler Vacationer is 30 amp and the RV will not run the air cond. and microwave at same time. Any ideas?
Are you actually connected to a 30amp line?
__________________

__________________
Don
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
adonh is offline   Reply With Quote
Old 11-24-2013, 02:29 PM   #3
Junior Member
 
Join Date: Jan 2012
Posts: 15
sorry, with the generator running...
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 02:31 PM   #4
Senior Member
 
vsheetz's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 11,789
Quote:
Originally Posted by tluehrs View Post
Our Holiday Rambler Vacationer is 30 amp and the RV will not run the air cond. and microwave at same time. Any ideas?
One or two AC units?
Connected to RV 30a service?
Occurs at more than one location?
Used to work and now does not - or never worked?

When you say will not run. Do you mean a fuse or circuit breaker trips? If so, is it a breaker in the RV or the power pedestal?
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
vsheetz is offline   Reply With Quote
Old 11-24-2013, 02:35 PM   #5
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,792
Well, it depends on the size of the Generator, How big is it? Many 30 amp rigs have generators that can hit 40 or 50, others have generators that can not hit 30, YOu may have that problem.. Also the generator may need service.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 11-24-2013, 02:41 PM   #6
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 16,225
Get or borrow an amp meter to check the draw of the A/C when starting and the microwave. You could have a weak breaker. I'd start by checking how much power the two offending items are demanding, then move on to the CB's.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is online now   Reply With Quote
Old 11-24-2013, 02:43 PM   #7
Junior Member
 
Join Date: Jan 2012
Posts: 15
It is a Onan 5500 generator. We just replaced the spark plugs and the generator keeps running but the AC kicks off and the Microwave.
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 02:47 PM   #8
Junior Member
 
Join Date: Jan 2012
Posts: 15
Thank You, it just may be a weak breaker. How can you test the breaker?
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 02:53 PM   #9
Senior Member
 
ImagesByHawk's Avatar
 
Holiday Rambler Owners Club
Join Date: Nov 2013
Posts: 165
Does your HR have a energy/power management panel? If it does, what does the display say? How many amps are you drawing with the appliances running?

The energy management system will prioritize what appliances it will power and which ones it will shut down in cascading order if insufficient power is available to run them all at once.

Is the generator actually putting out power? It may be running but is it generating electricity or just running without any load...when under a load the engine will sound as if it is really working, not just idling. Your panel should also show this as well.

Have you tried running one or the other individually and do they work?
__________________
2004 HR Ambassador 38PDQ
http://usa-rvnomads.com/
ImagesByHawk is offline   Reply With Quote
Old 11-24-2013, 02:53 PM   #10
Junior Member
 
Join Date: Jan 2012
Posts: 15
Onan 5500 generator. The generator and the appliances all came new in the RV so it all worked before.
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 02:55 PM   #11
Senior Member
 
wrvond's Avatar
 
Join Date: Sep 2013
Location: West Virginia
Posts: 225
Quote:
Originally Posted by tluehrs View Post
Thank You, it just may be a weak breaker. How can you test the breaker?
The only way I know to easily "test" for a weak breaker is to physically flip it off and on. If it flips very easily, it is "weak". You can check this by flipping another breaker or two. There should be noticeable resistance until the point the breaker actually flips from off to on.
Breakers are pretty inexpensive, so you might just opt to replace it. Or simply swap it for another of the same value to see if the problem goes away.
As for the generator, I would think it would run both at the same time, unless you have recently replaced the microwave with a very high powered unit.
Has anything in the configuration recently changed? Has the generator run both appliances with no problems in the past?
__________________
2002 Forest River Flagstaff 8528RLS
2014 Coachmen Catalina 253RKS
2016 Summerland Mini 1750 RD
wrvond is offline   Reply With Quote
Old 11-24-2013, 02:56 PM   #12
Junior Member
 
Join Date: Jan 2012
Posts: 15
Its a 1999 so no energy/power management panel. The AC runs fine without the microwave on an visa-versa.
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 03:00 PM   #13
Junior Member
 
Join Date: Jan 2012
Posts: 15
Quote:
Originally Posted by wrvond View Post
The only way I know to easily "test" for a weak breaker is to physically flip it off and on. If it flips very easily, it is "weak". You can check this by flipping another breaker or two. There should be noticeable resistance until the point the breaker actually flips from off to on.
Breakers are pretty inexpensive, so you might just opt to replace it. Or simply swap it for another of the same value to see if the problem goes away.
As for the generator, I would think it would run both at the same time, unless you have recently replaced the microwave with a very high powered unit.
Has anything in the configuration recently changed? Has the generator run both appliances with no problems in the past?
The appliances are all the original appliances.
__________________
tluehrs is offline   Reply With Quote
Old 11-24-2013, 03:04 PM   #14
Senior Member
 
palehorse89's Avatar


 
Newmar Owners Club
Join Date: Oct 2009
Posts: 7,731
One of two things, weak breaker on gen-set or one of two appliances drawing to many amps.(total of over 30 amps.)
If you do not have a amp. probe borrow one, if you don't know how to use one, have someone that does check it out for you and troubleshoot it to see what is over amping the unit.
__________________

__________________
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 online now   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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:03 PM.


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