RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

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 11-11-2017, 01:30 AM   #1
KDA
Junior Member
 
Join Date: Nov 2017
Posts: 7
AC won’t come on

Turned the
generator off while the ac was running now ac wont come on our 2015 allegro bus
KDA 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 11-11-2017, 01:43 AM   #2
Senior Member
 
ThePowells's Avatar


 
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,208
So how are you trying to power the AC?
If you are not hooked up to shore power or using your generator, that is probably the problem. AC has to have 110 to operate and inverters won't run it. If you are on shore power or generator, check the circuit breaker and make sure it hasn't tripped.

Other wise, is it doing anything at all? Will the fan run? Does it hum?
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
ThePowells is offline   Reply With Quote
Old 11-11-2017, 02:37 AM   #3
Member
 
Holiday Rambler Owners Club
Join Date: May 2017
Posts: 65
Quote:
Originally Posted by KDA View Post
Turned the

generator off while the ac was running now ac wont come on our 2015 allegro bus


I know on mine if it loses power while running there is a pretty good delay before the compressor will kick on one power is restored.
__________________
1996 Holiday Rambler Imperial 37WDS
MikeyRVNW is offline   Reply With Quote
Old 11-11-2017, 05:30 AM   #4
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 8,413
Welcome to the forum.

2.5 minute delay is common after restoring power. Seems like forever.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2016 Ford F150 Limited V6 with Ready Brake
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 11-11-2017, 07:08 AM   #5
Senior Member
 
Join Date: Aug 2016
Posts: 3,401


BTW...do yourself and us a favor by putting your MH and Toad information into your signature
This will really help in all your future posts, so you won't have to type it in each time.
You do this by:
1) Going to the top of this page and click the top left tab named “User CP”
2) Look at the menu on the left and scroll down to “Settings & Options” and click “Edit Signature”
3) In that text box type all the information about your MH, Year, model, length, mileage, any aftermarket extras installed, your toad and so on. You’ll be limited to 3 lines unless you become a IRV2 supporter.
Consider signing up and becoming a IRV2 supporter. It’s a small way to give back to what we all reap here.
marjoa is offline   Reply With Quote
Old 11-11-2017, 07:52 AM   #6
Senior Member
 
asuperheat's Avatar
 
Join Date: Apr 2012
Posts: 558
Try cycling the 12 volts, salesman switch if you have one or battery switch while the coach is unplugged. Seen a few occasions where the t-stats have to be rebooted for some reason and then they come back up and work fine.
__________________
2015 Winnebago Tour 42QD
Cummins 8.9 ISL 450
Freightliner XCL W/IFS
asuperheat is online now   Reply With Quote
Old 11-11-2017, 10:27 AM   #7
Senior Member/RVM #90
 
MSHappyCampers's Avatar


 
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 44,459
Hi ! Welcome to IRV2! We're sure glad you joined the gang!

You should turn off the A/C when switching power sources. As Myron said, there is a long delay before the unit comes back on when switching as you did.

Good luck, happy trails, and God bless!
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is online now   Reply With Quote
Old 11-11-2017, 11:41 AM   #8
Senior Member
 
Join Date: May 2017
Posts: 157
Ran into the same thing on my older Allegro this past summer. As mine turned out there is a small breaker on the back of the generator (Onan) that tripped. Checked all inside breakers and fuses and found all was good, checked generator itself and found a decal that was dirt covered mentioning a breaker on the genny itself, after looking and feeling with my hand I found it. Switched the breaker back on and all is good again. Not sure if this will fix your issue or not but thought I would mention it.
airshot is offline   Reply With Quote
Old 11-12-2017, 12:20 AM   #9
KDA
Junior Member
 
Join Date: Nov 2017
Posts: 7
Quote:
Originally Posted by ThePowells View Post
So how are you trying to power the AC?
If you are not hooked up to shore power or using your generator, that is probably the problem. AC has to have 110 to operate and inverters won't run it. If you are on shore power or generator, check the circuit breaker and make sure it hasn't tripped.

Other wise, is it doing anything at all? Will the fan run? Does it hum?
Think it could be a transphere switch but we can’t find it. Generator won’t power it.
KDA is offline   Reply With Quote
Old 11-12-2017, 12:21 AM   #10
KDA
Junior Member
 
Join Date: Nov 2017
Posts: 7
Does nothing at all
KDA is offline   Reply With Quote
Old 11-12-2017, 12:46 AM   #11
Member
 
Join Date: Dec 2014
Posts: 50
AC won’t come on

On mine I have to look closely at the Heat pump thermostat. If the little bitty numbers 1 2 3 aren’t visible and only the 1 & 3 are showing I have to turn the battery switch off then back on ( for the coach ) and wait for the thermostat reboot. When the 1 2 3 are Back on then I go to a/c auto and set the temp I want. Works every time.
Jimmyb12015 is offline   Reply With Quote
Old 11-12-2017, 02:32 AM   #12
Senior Member
 
ThePowells's Avatar


 
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,208
Does the other 110 stuff work from the generator? If so, that would probably rule out the transfer switch.

Have you checked the breaker inside of the coach power panel?

Have you tried it on shore power?

Just to limit the possibility of the thermostat, does the rest of the systems (heat, fans) work as designed?
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
ThePowells is offline   Reply With Quote
Old 11-12-2017, 10:31 AM   #13
KDA
Junior Member
 
Join Date: Nov 2017
Posts: 7
It actually has nothing to do with the AC
The generator is putting out 83 amps
It goes through the power control system and shows 83 amps but it won’t power anything
Reading in the manual it sounds like it’s not going through the control switch
All 110 works off shore power
KDA is offline   Reply With Quote
Old 11-12-2017, 10:35 AM   #14
Member
 
Holiday Rambler Owners Club
Join Date: May 2017
Posts: 65
Sounds like the transfer switch is stuck on the shore power side.
__________________
1996 Holiday Rambler Imperial 37WDS
MikeyRVNW is offline   Reply With Quote
Reply



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
Toad braking systems that don't come on when the tail lights come on. billdreamlv Toads and Motorhome Related Towing 12 03-24-2017 10:59 PM
slide out wont come in leveler wont come up. china3 Tiffin Owner's Forum 2 09-02-2013 03:58 PM
Snowbirds Come South! Do Roadrunners Go North?In the winter - the "snowbirds" come s Samarai iRV2.com General Discussion 6 09-20-2010 07:56 PM
Cruise Control won't come on! Bamagene Workhorse and Chevrolet Chassis Motorhome Forum 19 09-27-2006 08:12 AM
TV won't come on!? Michaels Winnebago Industries Owner's Forum 12 04-20-2005 04:53 PM


All times are GMT -6. The time now is 05:39 PM.


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