|
|
11-03-2020, 05:31 PM
|
#1
|
Junior Member
Join Date: Oct 2018
Posts: 15
|
RV A/C shutting down.
Greetings All!
I have a 2002 30' SeaBreeze MH with two AC units (front and rear). My problem is the front AC unit will run great for 10 minutes and then just shut off completely. The rear AC unit continues to run and cool just fine. When the front unit shuts down it is tripping the 20A breaker on the Generac 5.5KW generator. The breakers for the AC units in the MH do not trip. I have not tested to see if the problem occurs when connected to shore power as the rig is in storage and I'm getting ready to head out on the road so was doing basic system check before I left.
I just checked the capacitors for the front unit with my Klein multimeter and they all operate within normal parameters. All wiring was connecting nice and tight.
I'm mechanically and electrically inclined but figured somebody out there may have encountered a similar problem and perhaps help me avoid doing a LOT of unnecessary troubleshooting
All other AC systems seem to work fine on the generator also (MW, outlets etc).
Thank you in advance for any insight.
Michael
|
|
|
|
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!
|
11-03-2020, 05:33 PM
|
#2
|
Community Moderator
Monaco Owners Club
Join Date: Jul 2016
Location: Central, Arkansas
Posts: 11,286
|
How long has it been since your generator was serviced? Mine was doing the same thing and new filters took care of it.
__________________
2004 Beaver Monterey Laguna IV
Cummins ISC 350HP Allison 3000 6 speed
2020 Chevy Equinox Premier 2.0t 9 speed AWD
|
|
|
11-03-2020, 05:34 PM
|
#3
|
Junior Member
Join Date: Oct 2018
Posts: 15
|
Serviced the generator 6 months ago and got a green light.
|
|
|
11-04-2020, 07:18 AM
|
#4
|
Senior Member
Tiffin Owners Club
Join Date: Mar 2015
Location: Wainscott NY
Posts: 325
|
Hi. Does this happen with only the front air on? You need to check the amp draw with the air running. It sounds like you are over 20 amp draw and the breaker trips. What amp rating is each breaker in the panel?
__________________
Stan & Mary, and Lucy a Canine Princess in Training....
2021 Tiffin Allegro Bus 35cp, 2014 Cadillac SRX toad
|
|
|
11-04-2020, 07:19 AM
|
#5
|
Senior Member
Monaco Owners Club
Join Date: Jun 2014
Posts: 14,595
|
My front AC was starting to pull higher amps, I could see it on the EMS display. It would occasionally kick the breaker in the panel. Went on top and pulled the shroud, checked the motor itself and I could barely turn the shaft by hand, my guess it was a bearing failure. Found a replacement motor and changed, cost ~$125.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
|
|
|
11-04-2020, 06:47 PM
|
#6
|
Senior Member
Winnebago Owners Club Fleetwood Owners Club Holiday Rambler Owners Club
Join Date: Dec 2011
Location: North East Florida
Posts: 2,025
|
Best place to start is with an amp meter to see if the a/c is drawing high amps. If it is the problem lies in the a/c or the connection feeding it. Your volt meter should tell you if the unit is getting low voltage which will also run the amps up.
Process of elimination should lead you to the problem. Also don't discount a weak breaker at the gen set as a possibility.
__________________
2019 Horizon 42Q
Cummins L-9 450 HP
Maxum Chassis / IFS with Tag
|
|
|
11-04-2020, 06:54 PM
|
#7
|
Senior Member
Join Date: Dec 2019
Location: Alberta
Posts: 1,976
|
Watch the amps over the ten minute period. If the amps slowly climb and then in the last few seconds climb rapidly, then you have bad compressor bearings. The rotor is rubbing on the stator.
__________________
Jeff and Annette Smith. Sparky, lemon Beagle.
2022 Chevy Equinox RS.
2007 Dutch Star
|
|
|
11-05-2020, 07:43 AM
|
#8
|
Senior Member
Tiffin Owners Club
Join Date: Mar 2015
Location: Wainscott NY
Posts: 325
|
Great that you found the problem. Stan
__________________
Stan & Mary, and Lucy a Canine Princess in Training....
2021 Tiffin Allegro Bus 35cp, 2014 Cadillac SRX toad
|
|
|
11-05-2020, 07:56 AM
|
#9
|
Senior Member
Join Date: Jun 2017
Posts: 2,807
|
Quote:
Originally Posted by 36PFT
Great that you found the problem. Stan
|
He did? Enlighten the classroom.
|
|
|
11-05-2020, 08:00 AM
|
#10
|
Senior Member
Monaco Owners Club
Join Date: Jan 2010
Posts: 2,660
|
Quote:
Originally Posted by 36PFT
Great that you found the problem. Stan
|
Did I miss something? What was the fix?
__________________
Jan and Bob
'05 Monaco Windsor 40 DST - ISL / '08 Wrangler
|
|
|
11-05-2020, 08:22 AM
|
#11
|
Senior Member
Join Date: Jun 2016
Location: Omaha, Ne
Posts: 427
|
Try cleaning the AC coils and the filter first, then go to looking at the AMP draws, while you are up there cleaning the coils you can look at the bearings and see if they are starting to seize up.
__________________
Curt
2015 Wildcat 295RSX
2014 Ram 3500 CCLB 6.7 cummins
|
|
|
11-05-2020, 11:29 AM
|
#12
|
Senior Member
Join Date: Jun 2012
Location: NorCal
Posts: 3,000
|
Great he fixed a/c, but I missed the fix.
__________________
Outbound
2002 Monaco Executive 500 ISM
2004 GMC 2500HD 4X4
|
|
|
11-05-2020, 01:41 PM
|
#13
|
Senior Member
Join Date: Aug 2019
Location: Clearwater Florida
Posts: 218
|
Curleyguy996 is the OP. The FIXES were from other people posting.
There is still a problem.
Tom
__________________
TLGPE (RVM28)
Retired engineer working full time to keep our coach (05 KSDP 3910) operating.
|
|
|
11-05-2020, 02:57 PM
|
#14
|
Senior Member
Join Date: Mar 2009
Posts: 1,717
|
Easy and cheapest place to start is cleaning the condenser. Then put an amp clamp on the AC assembly to see if the AC is over amps or the circuit breaker on the generator is bad. If the AC is over amps, move the amp clamp to the blower motor to see where the over amps is coming from.
Richard
__________________
95 Bounder 32H F53
460
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|