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Old 06-18-2013, 07:40 AM   #1
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1987 32' Excella
fulton , Missouri
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can't figure it out 1986 Excella

air works lights don;t inside refergator does notwork either whats my problem i think it has somthing to do with my 12 volt converting over
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Old 06-18-2013, 08:17 AM   #2
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You are probably on the right track.

The 12 volt system powers about everything but the air conditioning, microwave and television.

There should be 12 volt car batteries somewhere and a 120 volt AC to 12 volt DC converter.

When the trailer is plugged into an AC outlet, the converter should supply power to run all the 12 volt appliances and charge the batteries. When not plugged in, the batteries will supply the power until dead.

Several possibilities to solve your problem.

Locate the fuse panel and make sure all the fuses are good.

Find the batteries and measure voltage with a handheld meter.

Bad batteries can load the converter to the point that it has nothing left to power the appliances. One can test this by disconnecting the batteries, keep the cables from shorting to each other or anything metal in the battery box and see if the lights come on.

If not, you may have a bad converter.

Other than dealing with some unknown modifications by a previous owner, this should get you started.


Regards,

JD
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Old 06-18-2013, 10:51 AM   #3
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On a lot of 80's trailers is a switch that cuts the 12 volt converter off. It is a 110 switch like a light switch. Ours is mounted behind the sofa. If that switch is turned off the converteter does not work and the batteries run down. Look hard for a switch that you do not know what it does. If that switch is the problem as soon as you turn it on you will have lights and ref.
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Old 06-18-2013, 12:00 PM   #4
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where is the convert located at
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Old 06-18-2013, 12:12 PM   #5
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We have a front couch, 1987, 32, Excella. The converter is located in the center of the front of the trailer below the masonite shelf behind the sofa. I think you have to take the sofa out to access it. You can probably see it with a flashlight if you remove the drawer beneath the couch. The 12 volt disconnect switch (a rotary switch) is located on the right side of the trailer on that shelf. There is a 12 volt fuse box that is accessible right above that shelf. I am told that some trailers do not have the switch for the converter and that some do.
If the 12 volt rotary switch is in the off position nothing 12 volt works in the trailer. If the converter is switched off (110 light switch) everything works until the batteries die. I found our converter switch (my wife did) one night on the road when things went dim and then out. We keep a spot of tape over it now because it is located on the trailer wall behind the sofa on the left side and it gets hit when we are stowing stuff back there.
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Old 06-18-2013, 03:54 PM   #6
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1987 32' Excella
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ok thanks i put battery charger on and the ligths all went on, i looks like i'm not getting a juice to the batterys to recharge what next
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Old 06-18-2013, 04:13 PM   #7
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Originally Posted by stuart mott View Post
ok thanks i put battery charger on and the ligths all went on, i looks like i'm not getting a juice to the batterys to recharge what next
Did you find the converter and make sure it's getting 120v power? That's the first step, as previously mentioned. Some trailers like yours have a switched outlet for the converter (as mentioned above) and you should also check the 120v breaker panel.

If the converter is getting 120v power but no 12v output, check to see if it has a main fuse or two. If it's a Triad/Univolt type converter, you'll get better battery life if you replace it even if you can make it work.
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Old 06-18-2013, 06:15 PM   #8
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thank you I will check it out let you know
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Old 06-20-2013, 07:28 PM   #9
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I found it I think

I think I found it out side left half way down, where the gas is use to run the ice box . what do you think is the best to repalce it with and the cost
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Old 06-20-2013, 07:55 PM   #10
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There are a lot of different converters out there. A lot of people like Progressive Dynamics. They are available at Vintage Trailer Supply.com or any other number of places. Pic one that will meet your needs (depending on how much 12v toys you need to power up in your TT).
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Old 06-20-2013, 07:58 PM   #11
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Oh...and if you are replacing a Univolt, you will probably need to salvage the 12v distribution panel from the Univolt....or buy a new 12v distribution panel for the new converter.
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Old 06-20-2013, 08:06 PM   #12
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1987 32' Excella
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still can find it

I still can't find the converter box I found the switch in the very fron but not the box and hat does it look like?
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Old 06-20-2013, 08:25 PM   #13
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If it's a Univolt, it is a big brick with wires coming out of it...guessing 8x8x12. In my '72 Trade Wind, it was street side rear behind the axels and would have been in a closet
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Old 06-20-2013, 09:12 PM   #14
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Here's what one looks like in a 1983 Excella. The sofa and fuse panel door have been removed in the photo. The Univolt is the big (and heavy) gray thing in the middle. The black boxes on either side are the battery boxes that are accessible from outside.

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