Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-09-2013, 09:21 AM   #1
2 Rivet Member
 
1994 28' Excella
St. James , Missouri
Join Date: Jan 2013
Posts: 28
Images: 9
AC not working

I'm new to RVing and I have a 1994 Excella 1000.

It has been very hot in the Midwest. Up until yesterday my Duo Therm Penguin AC and all electrical was functioning properly.

After taking a shower I was using a hairdryer when the main breaker tripped. FYI the microwave and AC were running. I was told this is a no no when using a hairdryer.

Anyway the main circuit at the outdoor post tripped. After resetting I when inside the unit to reset the breakers in the bedroom and the 12 volt breakers behind the sofa.

Most lights, frig and tv returned. What did not return was the AC unit and most overhead lighting.

One circuit breaker in the 12volt panel will not reset.

Any Ideas?
__________________

__________________
Mark910234 is offline   Reply With Quote
Old 07-09-2013, 10:28 AM   #2
Moderator
 
DKB_SATX's Avatar

 
2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
Join Date: Aug 2006
Posts: 6,400
Images: 1
Blog Entries: 7
Not to be harsh, but you've done this to yourself.

Microwave+AC should have been enough to trip the main and/or the campsite pedestal breaker, adding in the hairdryer clinched it.

ON first read I thought you were saying you had a 120v breaker that won't reset, thinking it may be damaged by overheating and require a new breaker. On the 2nd read I see it was a 12v breaker. Are you sure all of the 120V breakers correctly reset? (turn each one off then on again and pay attention to the feel of each breaker as you throw the switch.) If all the breakers are good and you have 120v service to the AC unit but it won't start, it may have been damaged from running in a low-voltage condition during the overload. Does the fan run but not the compressor? Or is it stone dead?

I guess the 12v device that won't reset controls the circuit for the overhead lights, but I can't see why it would be affected by the overload of the 30A 120V system.
__________________

__________________
— David

Zero Gravitas — 2017 Flying Cloud 26U | Il Progetto — 1976 Argosy 28 Center Bath | WBCCI# 15566

He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill
DKB_SATX is offline   Reply With Quote
Old 07-10-2013, 07:16 AM   #3
Rivet Master
 
Skater's Avatar
 
1995 30' Excella
Bowie , Maryland
Join Date: Apr 2005
Posts: 2,344
For the 120 volt: You have to switch the breaker off then back on again. My wife manages to trip the breakers now and then too.

For the 12 volt (lighting): You have a short circuit somewhere most likely. Strange that it would happen at the same time.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel

Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
Skater is offline   Reply With Quote
Old 07-10-2013, 07:18 AM   #4
3 Rivet Member
 
KAYAKAMPERS's Avatar
 
1966 26' Overlander
Stone Mountain , Georgia
Join Date: Jan 2009
Posts: 224
I would just replace the breaker with a new one.
__________________
_______________________________
Beth Wallace & Chris Sanor
1966 26' Overlander International
Towed by 2006 Dodge Dakota 8 cyl.
Tin Can Tourist
TAC #GA-27
AIR #34930
KAYAKAMPERS is offline   Reply With Quote
Old 07-10-2013, 08:24 AM   #5
2 Rivet Member
 
1994 28' Excella
St. James , Missouri
Join Date: Jan 2013
Posts: 28
Images: 9
Thanks for everyone's suggestions.

I will not make the hairdryer mistake again!!!!!

"If all the breakers are good and you have 120v service to the AC unit but it won't start, it may have been damaged from running in a low-voltage condition during the overload. Does the fan run but not the compressor? Or is it stone dead?

I guess the 12v device that won't reset controls the circuit for the overhead lights, but I can't see why it would be affected by the overload of the 30A 120V system".



The AC is stone dead. Zero power. I flipped the breakers several times.
They do not feel lose.

I'm trying to schedule a technician to stop by. I am not an electrician or HVAC person.

Mark
__________________
Mark910234 is offline   Reply With Quote
Old 07-10-2013, 08:43 AM   #6
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Avoid running the microwave while the AC is running, too. Pulling excessive current can damage the internals of the AC unit, from what I have heard.

If you are certain that all resets have been done, then if you are not comfortable repairing your electrical system, time to call an electrician.

To note: replacing breakers, either 12V or 120V must only be done with the main TT power disconnected.
__________________
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................
Aage is offline   Reply With Quote
Old 07-10-2013, 09:02 AM   #7
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,806
Images: 12
There is something missing here.

The 12 volt system does not have manual resettable breakers. They are thermal and reset themselves. Also there is no connection to the AC with the 12 volt system. I hope you did not have a fire in the ceiling, AC line melting, and short out the ceiling lights. Both wire run in the overhead and may come in contact with each other.

As for the AC being Stone dead and the fan not running that indicates there is no power to the unit. If you fried the breaker try swapping the AC line to another breaker of that you know is good. The fan should run if there is power to the unit. The compressor may have been damaged while running on Low Voltage. Voltage below 105 will cause it to overheat and do damage.

Airstream used to wire their trailer so you could not run the AC and Micro at the same time. But using a hair dryer and the AC is surtain trouble.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 07-10-2013, 10:09 AM   #8
2 Rivet Member
 
1994 28' Excella
St. James , Missouri
Join Date: Jan 2013
Posts: 28
Images: 9
My Airstream has solar power. There is a fuse panel behind the sofa.
__________________
Mark910234 is offline   Reply With Quote
Old 07-10-2013, 10:10 AM   #9
2 Rivet Member
 
1994 28' Excella
St. James , Missouri
Join Date: Jan 2013
Posts: 28
Images: 9
The panel looks like this

http://cdn.airforums.com/forums/atta...1&d=1174090073
__________________
Mark910234 is offline   Reply With Quote
Old 07-10-2013, 10:39 AM   #10
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,806
Images: 12
Solar is just a charging system for your batteries.

However now that you have access to the 12 fuse panel. test the output side of each of the breakers for 12 volts. A test light or voltmeter between the heavy black terminal and each of the colored wire sides of the breakers should show 12 volts. If there is one that doe not that may be your ceiling light problem. If you attempt to replace it REMOVE BOTH NEGATIVE TERMINALS on your batteries before you stick a screwdriver in there.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 07-10-2013, 10:46 AM   #11
Rivet Master
 
Skater's Avatar
 
1995 30' Excella
Bowie , Maryland
Join Date: Apr 2005
Posts: 2,344
Quote:
Originally Posted by HowieE View Post
The 12 volt system does not have manual resettable breakers. They are thermal and reset themselves.
Mine don't automatically reset, and mine look just like the picture he posted. It's a little weird, but the switches to reset is in between the two sets of breakers in the picture he posted.

If they are supposed to be self-resetting, mine don't, as I determined when I tripped one with the jack once.

Note, some A/Cs need 12 volt power too. Now that I think about it, that includes ours (which is only one year newer than yours, so it's probably very similar) - I've noticed that the lights on the A/C's panel can be even when the A/C's breaker is tripped. So I suspect you have just one problem - the 12 volt issue.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel

Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
Skater is offline   Reply With Quote
Old 07-10-2013, 10:52 AM   #12
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,806
Images: 12
I will not dispute your comment that some AC need 12. The thermostat may be 12 volts. Never seen one but.

If it could be a 12 problem effecting both check the output od the 12 breakers. They sure look like self resettable thermal breakers to me.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 07-10-2013, 10:58 AM   #13
Rivet Master
 
Skater's Avatar
 
1995 30' Excella
Bowie , Maryland
Join Date: Apr 2005
Posts: 2,344
Quote:
Originally Posted by HowieE View Post
I will not dispute your comment that some AC need 12. The thermostat may be 12 volts. Never seen one but.
Yeah, and I'm not entirely certain it is 12 volts, but I know for certain the lights have been on in the control panel while that 120 volt circuit has been off - and the easiest way to do that would be a 12 volt circuit. (It drove me nuts trying to figure out what was going on the first time... "The lights are on!! Why isn't it running!?")

Quote:
If it could be a 12 problem effecting both check the output od the 12 breakers. They sure look like self resettable thermal breakers to me.
Okay. Mine definitely didn't self-reset the one or two times I tripped one, possibly just worn out or something (and I tripped the same one each time, so it's not like I've tested more than one). The reset method seemed a little dangerous - "slide your finger in there next to the 12 volt bus bars..." - so I wondered if there was a better way.

The best thing would be to break out a multimeter and start checking for power on the connections to the circuit.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel

Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
Skater is offline   Reply With Quote
Old 07-10-2013, 11:30 AM   #14
2 Rivet Member
 
1994 28' Excella
St. James , Missouri
Join Date: Jan 2013
Posts: 28
Images: 9
I called Airstream and spoke with a service person. He told me to flip all breakers to the off position and disconnect the 12volt batteries. Unplug power at the outside meter. Return to the interior and flip breakers to the on position, reconnect 12 volt batteries. Hope this does the job!
__________________

__________________
Mark910234 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



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:57 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.