Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-08-2020, 01:33 PM   #1
Winnebago Camper
 
Join Date: Nov 2017
Posts: 6
Basement AC Tripping Circuit Breaker

Can someone help me with my problem? I have a 2002 Adventurer. I love it and would like to keep it if it is cost effective. Lately the Basement AC is tripping the circuit breaker when the unit comes on. It runs fine and is plenty cold while running. BTW I am plugged into 50 amp service. Several RV techs have said it is the Compressor going bad. I have not taken it in for an official diagnosis yet. So my question is is it the compressor or could it be something less expensive and is it worth the investment if it is the compressor? Everything else on the rig works great.
Shaka is offline   Reply With Quote
Old 05-08-2020, 01:57 PM   #2
Winnebago Owner
 
rgvtexan's Avatar
 
Join Date: Oct 2009
Location: NE WA or S TX
Posts: 223
I don't understand if tripping the Breaker, how does it run fine.

Could be many things. Starting Caps, Fan Motor, or Bushings. I would start with them.
__________________
04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat 74 MGB-GT, 75 MGB, 01 Z3
Life is a Timed Event, you only get One Go Around!
rgvtexan is offline   Reply With Quote
Old 05-08-2020, 02:00 PM   #3
Winnebago Camper
 
Join Date: Nov 2017
Posts: 6
I reset the breaker and it starts up just fine.
Shaka is offline   Reply With Quote
Old 05-10-2020, 07:00 PM   #4
Winnebago Owner
 
youracman's Avatar
 
Join Date: Sep 2011
Location: Denver, CO
Posts: 79
This is a tough one. Just a suggestion(s): 1. Check the tightness of the wire connections at the breaker. Loose connections can cause localized heat and trip a breaker. ( I have seen this more than once doing residential A/C repair.) 2. Hate to "throw parts at it" but you might try a new breaker. A EE (power major) friend of mine once told me a tripped breaker is just a teensy bit weaker than before the trip ........... lotsa trips = quite a bit weaker. If the new breaker does not cure the problem, you'll have a spare breaker in your spares box ..... not such a bad idea.

The above is admittedly a "stretch" but who knows?

Please let us all know what the final resolution is. We're all learnin'.

Good luck with the fix, and safe travels.
__________________
Ed Sievers, Denver, CO
07 WGO 31ft Class C "Outlook"; Toad: '16 Soul with 6-spd DIY
"Be the person you needed when you were younger"
youracman is offline   Reply With Quote
Old 05-14-2020, 06:17 PM   #5
Winnebago Master
 
bobmac's Avatar
 
Join Date: Mar 2008
Location: Southern Ontario
Posts: 537
Consider replacing the capacitors. Might be drawing excessive current at startup because of a weak cap. Get them at electronics stores or an appliance parts store. You can put in a larger rated capacitor providing it has an equal or greater capacity, an voltage rating identical or greater than the recommended, and should be a similar form factor for mounting. Makes it a lot easier to find one with that flexibility. Should get at least a couple of spares if they are relatively inexpensive. Good luck,
__________________
Bob
09 Journey 39Z
Southern Ontario
bobmac is offline   Reply With Quote
Old 05-14-2020, 09:25 PM   #6
Winnebago Owner
 
Join Date: Apr 2014
Location: Texas
Posts: 60
I'm leaning toward suggestions by YOURACMAN and BOBMAC. Our AC was having a similar problem. We soon discovered the probable cause - loose connections on the PMS which finally shorted and burned the wires in the PMS. The AC was not getting enough continuous current to actually start the unit. Once we replaced the PMS, the tech suggested replacing the capacitors anyway because they were 20 yrs. old and may have been compromised or stressed by the fluctuating current and possible shorts (I did that myself - cheap and easy to do) He also said it was a good idea to check your PMS connections occasionally to ensure they are tight (at least annually if a lot of highway use). Good luck.
__________________
Butch and Peggy
N.Central TX; 2000 Itasca Suncruiser 32V; Workhorse P-32 Chassis; 7.4L Vortec V-8 w/Banks Pwr Sys; Steer Safe; Springs/Airbags front; Timbren Suspension kit rear; Onan 5K
peggwn is offline   Reply With Quote
Old 05-15-2020, 09:56 AM   #7
Winnebago Owner
 
Join Date: Apr 2020
Location: Lake Havasu City AZ
Posts: 4
Possible inexpensive fix

Circuit breakers can go bad over time. They are relatively easy to access and are inexpensive. You might try replacing yours and that will at least eliminate a bad breaker as a possible cause.

Several motors are trying to start up during the initial start up of the A/C unit. A previous member suggested a fan motor or capacitor may be the culprit. An experienced person may be able to listen to your unit starting up and determine if the problem is a fan motor or compressor. You stated a couple of techs said it is your compressor. But, it may only be the compressor capacitor and not the compressor motor itself. It is my understanding the original type compressors are no longer available but a suitable replacement compressor is available somewhere out there.

Does the circuit breaker shut off when the second compressor fires up? The second compressor is timed to start within about 1 minute after the first compressor starts. If the breaker does not shut off at this point, replacing the capacitor to the first compressor may solve your problem. Again, capacitors are pretty cheap and most are easily accessible thru the outside access panel of your A/C unit. They are readily available on Ebay, usually for under $20, depending on the size needed.

These would be two relatively inexpensive shots at resolving the problem without having to remove the unit from the coach. If an external or internal fan motor is the problem, the A/C unit must be removed to access these motors. I recently had to replace the external fan motor (condenser fan motor) in my 2005 Itasca Horizon. This was the first A/C problem I had in the 15 years of owning it. I did the work myself for about $350 in parts. Some of the parts are tough to find but thanks to sites like this one and Google searches, I was able to locate everything needed to make the unit like new again. I replaced the condenser fan motor, the "squirrel cage", the shaft bearings, and all of the capacitors in the a/c unit, for piece of mind. Fortunately, the compressors checked out fine. It was a big job and who knows how much I saved in labor cost?
AcomaRio is offline   Reply With Quote
Old 05-15-2020, 07:02 PM   #8
Winnebago Camper
 
Join Date: Nov 2017
Posts: 6
Thank you for all your responses. We have, since I wrote last, started hearing the squirrel cage or motor making odd noises that we could only hear outside the coach near the ac unit. So rather than put parts in we are biting the bullet and having a new unit installed.
Shaka is offline   Reply With Quote
Old 05-16-2020, 09:31 AM   #9
Winnebago Owner
 
Join Date: Apr 2020
Location: Lake Havasu City AZ
Posts: 4
Follow up to breaker shutting off

Sounds like the same problem I had. The strange noises are most likely coming from what I called the "shaft bearings" on the external fan motor. They look like regular evaporative cooler bearings with an oil port and they require regular oiling but, the entire a/c unit must be removed to access them for oiling so most never get lubricated after the RV leaves the factory (very poor design). I replaced mine with sealed bearings obtained from Grainger for about $12 each. Never need oiling. I'll also bet the capacitor on that motor or perhaps the motor itself is bad and that is what is causing your breaker to shut off.

When you say you are replacing the entire unit, do you mean the entire a/c assembly? That must be pricey. If that is the case, please let us know where you are getting it from. I thought Coleman stopped producing the units years ago. Sure would like to know where your source is for the future. Thanks.
AcomaRio is offline   Reply With Quote
Old 05-16-2020, 10:22 AM   #10
Winnebago Master
 
Join Date: Oct 2017
Location: Elk Grove, CA
Posts: 1,623
Here's one source of several for a replacement unit. Given what I've read about people pouring hundreds and more dollars into unsuccessful servicing I don't think the price is outrageous for the DIYer. I checked with the manufacturer a while ago and, even though the specs state 50A service, 30A is OK, at least as OK as it ever was. My 2002 35U is 30A. If and when I ever replace the unit, I'll probably convert to 50A.

https://www.my12voltstore.com/Colema.../46515-811.htm
__________________
Bob C
2002 Itasca Suncruiser 35U
W20 Chassis
BobC is offline   Reply With Quote
Old 05-16-2020, 06:48 PM   #11
Winnebago Owner
 
Join Date: Apr 2020
Location: Lake Havasu City AZ
Posts: 4
Thank you for the lead, BobC. I agree, the price is not bad at all considering it is a complete unit ready to go. Nice customer reviews posted for the company too.

I hope I never need them but if I do, I now know where to go. Thank you.
AcomaRio is offline   Reply With Quote
Old 05-16-2020, 07:51 PM   #12
Winnebago Camper
 
Join Date: Nov 2017
Posts: 6
Thanks BobC for the link. This is a great find. I found a shop that will install it for $360. Will let you know how it goes.
Shaka is offline   Reply With Quote
Old 05-16-2020, 08:48 PM   #13
Winnebago Owner
 
rgvtexan's Avatar
 
Join Date: Oct 2009
Location: NE WA or S TX
Posts: 223
This maybe a repete, but if not it is the best info on servicing basement air.

Duner has done a GREAT job of helping us.
Give it a look before buying new.

https://docs.google.com/viewer?a=v&p...zBiZTYxYzU5ZWQ
__________________
04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat 74 MGB-GT, 75 MGB, 01 Z3
Life is a Timed Event, you only get One Go Around!
rgvtexan is offline   Reply With Quote
Old 05-17-2020, 04:29 PM   #14
Winnebago Camper
 
Join Date: Jul 2005
Location: Raleigh,NC
Posts: 19
Same issue

I have a 2009 Winnebago Vectra — having the same issue of AC tripping the MH breaker. One tech said it was a bad surge protector — replaced.
Problem is who do you get to service the basement AC ?
2000 Winnebago Adventurer had no cooling problem that was repaired.
Unfortunately not in a position to fix this problem myself.
__________________
Retired Law Enforcement RPD
2009 Winnebago Vectra 40’/2016 Jeep Grand Cherokee
2 Jack Russells. (rescues)
jrtgirls is offline   Reply With Quote
Old 05-17-2020, 04:46 PM   #15
Winnebago Master
 
Join Date: Oct 2017
Location: Elk Grove, CA
Posts: 1,623
Quote:
Originally Posted by jrtgirls View Post
I have a 2009 Winnebago Vectra — having the same issue of AC tripping the MH breaker. One tech said it was a bad surge protector — replaced.
Problem is who do you get to service the basement AC ?
2000 Winnebago Adventurer had no cooling problem that was repaired.
Unfortunately not in a position to fix this problem myself.
I don't know this first hand, but I've read that the basement air units have a lot in common with residential units, especially made for mobile homes so you may find someone by calling around. An independent A/C repair person may be your best bet as opposed to a large company.

You might try calling Airxcel, the manufacturer. I'd think they'd have a network of service providers. You'll need to be specific to the basement air unit since they also make roof A/Cs:

https://www.airxcel.com/rv/coleman-m...mps/two-ton-he

If you're successful, let us know what you find out.
__________________
Bob C
2002 Itasca Suncruiser 35U
W20 Chassis
BobC is offline   Reply With Quote
Old 05-17-2020, 07:24 PM   #16
Winnebago Camper
 
Join Date: Jul 2005
Location: Raleigh,NC
Posts: 19
AC

Thanks
__________________
Retired Law Enforcement RPD
2009 Winnebago Vectra 40’/2016 Jeep Grand Cherokee
2 Jack Russells. (rescues)
jrtgirls is offline   Reply With Quote
Old 05-17-2020, 07:51 PM   #17
Winnebago Owner
 
Join Date: Apr 2014
Location: Texas
Posts: 60
jrtgirls - AC folks are very adamant that they can't fix basement air units in RVs. I tried to explain to them that it is just like the units put in closets in S&B houses. They shy away like I have leprocy. Good luck on that search.
__________________
Butch and Peggy
N.Central TX; 2000 Itasca Suncruiser 32V; Workhorse P-32 Chassis; 7.4L Vortec V-8 w/Banks Pwr Sys; Steer Safe; Springs/Airbags front; Timbren Suspension kit rear; Onan 5K
peggwn is offline   Reply With Quote
Old 05-17-2020, 10:18 PM   #18
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,210
Quote:
Originally Posted by BobC View Post
I don't know this first hand, but I've read that the basement air units have a lot in common with residential units, especially made for mobile homes so you may find someone by calling around. An independent A/C repair person may be your best bet as opposed to a large company.

You might try calling Airxcel, the manufacturer. I'd think they'd have a network of service providers. You'll need to be specific to the basement air unit since they also make roof A/Cs:

https://www.airxcel.com/rv/coleman-m...mps/two-ton-he

If you're successful, let us know what you find out.

AirXcel also makes the mobile home and portable office A/C Units and yes they can be serviced by most home service companies since they all have common DNA so to speak. The gent who services my home A/C took one look at the basement air on my 2001 Adventurer and loved it. No crawling on the roof and the control box with the capacitors and relays that are the most common source of failure are easily accessible. A good A/C and Refrigeration tech can replace the compressors and other parts with standard items from Graingers and other local Residential A/C parts suppliers. As long as the coils are still in good shape and the housing is not rotted out there should be no need to replace the entire unit.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 05-18-2020, 12:06 PM   #19
Winnebago Owner
 
depchief's Avatar
 
Join Date: Jul 2006
Location: Conway, SC
Posts: 166
I have found the best pricing for the replacement basement air is as below. They ship free and no tax if required in your state. Check them out, might help you save some initial cost to cover installation. Model # for new unit is 46515-811
Dyers RV
4122 W Innovative Dr
Suite 105
Phoenix AZ, 85086
632-266-3022
__________________
2002 Winnebago Ultimate Advantage 40J, Roadmaster InvisiBrake Model 8700
2012 Chevy Captiva
NEVER FORGET
"Everyone Goes Home"
depchief is offline   Reply With Quote
Old 05-22-2020, 08:48 AM   #20
Winnebago Camper
 
Join Date: Nov 2017
Posts: 6
This is great information. Thanks
Shaka 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
AC breaker tripping Jimztoy Winnebago General Discussions 3 04-20-2019 06:21 AM
breaker tripping JimA7489 Electrical | Charging, Solar and Electronics 10 03-05-2019 01:36 PM
Bathroom 3 bulb light tripping breaker rhigg1959 General Maintenance and Repair 8 01-25-2018 04:23 AM
Windshield Wiper Tripping Breaker jdkskyking General Maintenance and Repair 1 11-17-2017 10:50 AM
breaker tripping question lajuene Electrical | Charging, Solar and Electronics 6 09-06-2011 06:43 AM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 11:43 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×