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Can run down the roared with gen-set and house air on

scubastu
Explorer
Explorer
The dash AC went out yesterday ( very hot in unit) We are 4.5 hours from dealer. My question is can a person drive the unit with the gen-set running and coach AC unit on of the motorhomes? Not sure if it would damage any electronics?
19 REPLIES 19

Bruce_Brown
Moderator
Moderator
We do it all the time. No worries.
There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910

mtrumpet
Explorer
Explorer
Sure! We do it all the time. Much better to use the gen-set rather than let it sit unused.
Mark & Cherie
2002 Newmar Dutch Star DP 3872, Cummins 350 ISC, Spartan Chassis

stardalo
Explorer
Explorer
I am really surprised people ask this question so much. And yes, I have ran that genny non-stop during most of my summer travel days. Could not do it without it.

AllegroD
Nomad
Nomad
I'll pile on. Yup. Do it a lot.

dalerussel
Explorer
Explorer
We live in Arizona so in the summer, we need both the dash an coach ACs on while driving. If we don't, it takes a long time to cool the coach after we have stopped for the day. The Onan manual says it costs just under a gal per hour on our gas coach. This cost is well worth it for our comfort.

et2
Explorer
Explorer
Yes. If it draws fuel from your main gas tank it will probably only draw to about a 1/4 of a tank. This is so you don't run out and get stranded while camping.

wa8yxm
Explorer III
Explorer III
Most of us who travel in the south in teh summer do run both Dash air and House air,, You need all the air you can get.. No problem.. Generator is designed to run while driving.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times

Effy
Explorer II
Explorer II
Vulcan Rider wrote:
GlennLever wrote:
On hot days the dash A/C cannot keep up so I run the generator and house A/C all the time.


I guess there are more advantages to having a "small" RV than I thought. :B

The truck AC in my C (Ford E450) is adequate to cool the whole thing in any conditions I've experienced so far.

It takes a little while to get really comfortable but after that, fine.

My only concern running the engine AND the gen would be with trying to charge the batteries from TWO generator sources at the same time.
But it appears this is common practice and works fine.


Charging systems on newer rv's are smart enough to know what source to allow a charge to the batteries. The default is when it senses shore power, if no shore power then gen, if no gen then engine alt. But it won't attempt to charge from multiple sources.
2013 ACE 29.2

Vulcan_Rider
Explorer
Explorer
GlennLever wrote:
On hot days the dash A/C cannot keep up so I run the generator and house A/C all the time.


I guess there are more advantages to having a "small" RV than I thought. :B

The truck AC in my C (Ford E450) is adequate to cool the whole thing in any conditions I've experienced so far.

It takes a little while to get really comfortable but after that, fine.

My only concern running the engine AND the gen would be with trying to charge the batteries from TWO generator sources at the same time.
But it appears this is common practice and works fine.

GlennLever
Explorer
Explorer
On hot days the dash A/C cannot keep up so I run the generator and house A/C all the time.

tropical36
Explorer
Explorer
scubastu wrote:
The dash AC went out yesterday ( very hot in unit) We are 4.5 hours from dealer. My question is can a person drive the unit with the gen-set running and coach AC unit on of the motorhomes? Not sure if it would damage any electronics?

I think most of us use the genset when in hot weather for the roof ac's and other things. Just never use ours, while sleeping. Many dash ac's don't even work and considered pretty much useless by many and lucky if they can cool a large car in real heat, like with the tropics in summer and the desert southwest.
"We are often so caught up in our destination that we forget to appreciate the journey."

07 Revolution LE 40E_Spartan MM_06 400HP C9 CAT_Allison 3000.

Dinghy_2010 Jeep Wrangler JKU ISLANDER.

1998 36ft. National Tropi-Cal Chevy Model 6350 (Sold)

gemert
Explorer
Explorer
I almost always do.
Jerry
Chief USN Retired
2003 Beaver Patriot Thunder C-12 505HP
2004 Dodge Ram 1500 4X4

Billinwoodland
Explorer
Explorer
I like to run the gen at times while traveling to just exercise the generator. Seems to burn around 1/2gallon of fuel per hour.
2008 Monaco Monarch 34 sbd

Effy
Explorer II
Explorer II
Yes. That's what it's there for. We never use the dash AC. It's far less efficient at cooling the coach than the central air.
2013 ACE 29.2