Reply
 
Thread Tools Display Modes
Old 06-02-2010, 12:29 PM   #1
Member
 
Join Date: Sep 2009
Location: Eagle, WI
Posts: 45
Air Conditioner pops 20A breaker

My Air Conditioner this past weekend was poping the breaker.
When we first bought the unit it did the same thing, and the dealer came out and installed a delay on the compressor, so the fan and compressor did not turn on at the same time. All was good.
This past weekend after about an hour or so of running it poped the breaker.
This happened twice. Does anyone have any suggestions?
__________________

__________________
kev2504 is offline   Reply With Quote
Old 06-02-2010, 12:34 PM   #2
Senior Member
 
NWJeeper's Avatar
 
Join Date: Aug 2008
Location: Enumclaw, WA
Posts: 2,617
Are you talking about the breaker in the RV itself or in the garage or the pedestal where it is plugged in? I don't see the point of the time delay relay as they are usually only used to keep the compressor from cycling on and off if you switch the thermostat on and off quickly. I have never heard of using the TDRs on RV air conditioners. It isn't beyond possibility that there could be something wrong with the compressor which is bogging down the motor to the point where it is popping the breaker. A TDR doesn't fix that. Sounds to me like the dealer didn't want to actually do any work to diagnose the problem rather put a band aid on it and hope it goes away.
__________________

__________________
"I can fix it, and if I can't fix it, I can fix it so no one can fix it!"
Ed & Wendy
2009 Georgetown 378TS | 1998 Jeep Wrangler | 1998 Skeeter ZX202C
Nights camped in 2009: 53 | Nights camped in 2010: 55
www.nwjeepn.com
NWJeeper is offline   Reply With Quote
Old 06-02-2010, 09:01 PM   #3
Senior Member
 
Join Date: Sep 2007
Location: Greensburg In
Posts: 785
you should be on at least a 30amp breaker A/C probably drawing that much by it self so any thing else running electric will cause it to overload and throw the breaker
__________________
2008 8296SS Rockwood Signature Ultralite
2002 Silverado 2500HD extended cab
chevy02 is offline   Reply With Quote
Old 06-02-2010, 09:21 PM   #4
Senior Member
 
milzat's Avatar
 
Join Date: Aug 2006
Location: Prairieville, Louisiana
Posts: 1,927
The A/C is designed to draw only 20 AMPS.

There are a number of things that can cause the breaker to "TRIP". A breaker "TRIPS" because of the build up of heat. Many things can cause a breaker to heat up and "TRIP". I'd start with the connection(plug). Make sure you have a good connection at the campground pedestal, then go from there. Some older campgrounds will give a breaker "TRIP" problem. Wiring gets bad, receptacle contacts get tarnished, etc...
__________________
milzat is offline   Reply With Quote
Old 06-02-2010, 10:03 PM   #5
Junior Member
 
Join Date: May 2010
Location: New Jersey
Posts: 19
Not knowing to many details about the unit. I would check all easily accessable connections and plugs. Next pull the cover on the unit to see if the fan turns freely and while you are there look for the Capacitory. It looks like a small soda can (can also be black plastic) cylinder with serveral wires coming out of the top. This stores up current for use when the units kicks on. If this happens to be the area that is causing the problem it will only get worse as you keep turning the breaker on and running the unit. I was able to track down a local A/C repair person and he had on his truck for about under $30.00. An easy cheap fix if this is your problem. While you have the cover off see if there is a place to lubricate the fan.
__________________
GingersDad is offline   Reply With Quote
Old 06-02-2010, 10:19 PM   #6
Cyber Phrenologist
 
Radio's Avatar
 
Join Date: Jun 2007
Location: Fayetteville, GA
Posts: 1,699
Quote:
Originally Posted by NWJeeper View Post
I don't see the point of the time delay relay
The idea, as I see it, is to reduce the amount of instantaneous current draw on start up. Both the compressor and fan motors pull the most current when starting. If you start one, say the fan, let it come to speed (and minimum current draw) then start the compressor, it reduces the peak current and lessens the amount of voltage "sag"

Instead of one huge current peak you have two smaller ones

A system like that I think would make the motors in the unit last longer and pop fewer breakers on starting.

*****

It also occurred to me that the line voltage drops in the summer as everyone has their A/C running. In my subdivision, built about 1988, the grid will sag a bit during peak usage times. This could be aggravating your problem.

You might invest in one of those voltmeters you plug into an outlet in the RV. I have one, and that's how I know the grid sags a bit in the hot afternoons.
__________________
KU4OJ
Admin at www.openroadsradio.net, part of the Social Knowledge network.
"RVing and Amateur Radio served up on the same plate"
2008 (or is it 2009?) Rockwood 8280SS - 2007 F-150
Lot's of mostly Kenwood radios

Radio is offline   Reply With Quote
Old 06-02-2010, 10:36 PM   #7
Member
 
Join Date: Dec 2008
Location: Lenoir City, Tn
Posts: 54
Last year on our first rip out, I had a similar problem with the AC tripping the AC breaker in the camper when it would cycle and shut off. After considerable stress, I turned the electric hot water heater off and ran it on gas and the problem ended. After calling a mobile service man, he told me to leave the water heater off and that I most likely had a bad element a bad element in the hot water heater and it was contributing to the breaker tripping. When I returned home, I replaced the element and at the service man's suggestion the AC breaker. It has worked perfectly ever since.
__________________
jamesp is offline   Reply With Quote
Old 06-02-2010, 10:59 PM   #8
Senior Member
 
NWJeeper's Avatar
 
Join Date: Aug 2008
Location: Enumclaw, WA
Posts: 2,617
Quote:
Originally Posted by Radio View Post
The idea, as I see it, is to reduce the amount of instantaneous current draw on start up. Both the compressor and fan motors pull the most current when starting. If you start one, say the fan, let it come to speed (and minimum current draw) then start the compressor, it reduces the peak current and lessens the amount of voltage "sag"

Instead of one huge current peak you have two smaller ones

A system like that I think would make the motors in the unit last longer and pop fewer breakers on starting.

*****

It also occurred to me that the line voltage drops in the summer as everyone has their A/C running. In my subdivision, built about 1988, the grid will sag a bit during peak usage times. This could be aggravating your problem.

You might invest in one of those voltmeters you plug into an outlet in the RV. I have one, and that's how I know the grid sags a bit in the hot afternoons.
Yeah, I fully understand the purpose and thinking behind the TDRs but they have never been needed on RV air conditioners in the past so this case didn't make sense to me. The use of the TDR to me seemed like a band aid fix by a dealer service center that didn't want to dig further into the problem. Since an RV air conditioner can be run on 20 amps with no other large current draw items running, merely delaying the full use of current doesn't fix anything. I see the TDR as unnecessary when no one else needs them and something else needs to be fixed or remedied.

Perhaps like the other gentleman here who's AC was freezing up this person is running theirs too long trying to get down to a temperature that the AC is not designed for. Just a thought. He states that it pops the breaker after an hour of running. That is a long duty cycle if the compressor is running the entire time, maybe trying to get down to an unobtainable temperature. Just throwing out ideas here but surely the TDR wasn't the fix as it still has the same problem.
__________________
"I can fix it, and if I can't fix it, I can fix it so no one can fix it!"
Ed & Wendy
2009 Georgetown 378TS | 1998 Jeep Wrangler | 1998 Skeeter ZX202C
Nights camped in 2009: 53 | Nights camped in 2010: 55
www.nwjeepn.com
NWJeeper is offline   Reply With Quote
Old 06-03-2010, 07:51 AM   #9
Moderator Emeritus
 
Join Date: Nov 2008
Location: Winston-Salem, NC
Posts: 2,381
Until the first question is answered, which breaker, I don't think we can go any farther. While the AC MAY run on a 20 amp breaker, it's highly unlikely the camper will run the AC on a 20 amp circuit with a 15 AMP adapter. Also one must remember, the hotter it gets outside the more current the compressor will draw due to pressures being higher in the system, so while it may work at 70 degrees, it may not at 90 degrees. One last thing, that long extension cord coming from the garage isn't helping either, especially if it is 14 gauge or smaller. Sorry, too many unknowns here to make any kind of proper diagnostic help.
__________________
LadyWindrider
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic

2008 Work and Play 18LT
LadyWindrider is offline   Reply With Quote
Old 06-03-2010, 08:21 AM   #10
Moderator Emeritus
 
MtnGuy's Avatar
 
Join Date: Sep 2008
Location: Shenandoah Valley
Posts: 9,274
Quote:
Originally Posted by GingersDad View Post
Next pull the cover on the unit to see if the fan turns freely and while you are there look for the Capacitory. It looks like a small soda can (can also be black plastic) cylinder with serveral wires coming out of the top. This stores up current for use when the units kicks on.
It is my understanding that you can get quite a shock from a charged capacitor, so be careful up there.
__________________

__________________

Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS
MtnGuy is offline   Reply With Quote
Reply

Tags
air conditioner, breaker

Thread Tools
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




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:29 AM.