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Old 11-27-2014, 01:32 PM   #1
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11 amp draw, where? New owner, perplexed Please help

Forgive cross posting, I posted on my thread about buying a used trailer and had some good suggestions and information.

I have a 27 BH 2006 in good shape but prior owner unknown. First hookup trying to go camping today!!

Quick question!!

Got a spare battery and was hooking it up, I noticed more than expected sparks. I had opened up the front box and assured I had correct polarity and remarked the unmarked wires. I used ohm meter and tested and got less than 2 ohms resistance - nearly a dead short. I changed meter to amps and tested 11 amp draw. Hmm...

Everything was off, even lights.
I disconnected the 115 v power, no change. I disconnected the Tow vehicle. No change.
I pulled every 12v fuse in the box, still drawing 11 amps.

When all else fails, I looked at the owners manual and didn't see anything about unexpected circuits.

I'm now going to disconnect some of the things connected to the positive battery junction box to the wire nut with the positive lead.

Is there a 115v inverter that comes on automatically when you connect power? I guess there is but I don't see a switch for it.

Advice?

I've take apart the huge wirenut with positive wires and found two that had been drawing current. I disconnected them and then since none of the wires had visible markings did a test to see what worked after replacing fuses and hooking up the battery (zero draw on those circuits). Nothing worked, none of the lights, the water pump, didn't test fridge but unexpected as there were two large gauge wires hooked to the battery and they didn't do anything. Clearly one of the disconnected wires goes to the 12 fuse panel. I guess I"ll have to disconnect the fuse panel from the cabinet and remove the power feed wire and go directly to the fuse panel or something. Not sure what is drawing 11 amps but it would kill the battery in a hour and not sure what its doing. Getting frustrated!


NOte: I realized as I got into it the sun had bleached the red wire white, all wires white on outside except underneath.
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Old 11-27-2014, 01:44 PM   #2
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Converter is on it's own circuit usually, plugged into the power center. It does come on and serves as battery charger / converter when on shore power.

One thing to check, that I'm sure you have, is the emergency break away. If you pull that out, brakes set, and you will draw some amps. Not sure how much though.

I'm at a loss outside of that.
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Old 11-27-2014, 01:56 PM   #3
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Oh...yea, there was a separate lead for that and I didn't connect it yet, but it tested out as open circuit. I noticed the load center thing looked like it had an inverter built into it, not sure how to turn it off going to google the IOTA load center. Ok read up on it, maybe it has a problem...? Going to jury rig the thing to provide lights but have to research it more when I have time. ONly thing I need is lights and pump for water.

I have it pulled out of the wall cabinet. Wish it had more clear markings on what is what on the wires and stuff.
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Old 11-27-2014, 02:03 PM   #4
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I'd have to look at mine, but I'm offshore now. This is the first trailer we've had where the converter was built in. All others, the converter was separate, and the load center had a plug on the back for the converter, and its own breaker. Even built in, converter should have its own circuit, you would think. I'm not familiar with the IOTA as we've just had WFCO and PD, but they should be kind of similar. Keep us posted, now you got me curious.

11 amps is quite a draw for everything I can think of that might have a closed circuit.
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Old 11-27-2014, 02:22 PM   #5
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I'm fixing to jury rig the lights and pump and come back to it later. It doesn't appear to have a inverter built in. hmmm.. too bad I need to button it up!
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Old 11-27-2014, 02:26 PM   #6
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Is the break away switch pin pulled?
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Old 11-27-2014, 02:35 PM   #7
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Quote:
Originally Posted by Grumpy View Post
Is the break away switch pin pulled?
Just when I thought I knew everything I learn something new.
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Old 11-27-2014, 02:43 PM   #8
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See earlier posts. Break away was checked.
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Old 11-27-2014, 02:49 PM   #9
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I was going to say same thing about checking brake pin. Bumpy beat me to it hehe... Each brake magnet pulls 3AMPS with 12VDC applied. That adds to four brake magnets...


Worth a check... Actually pull the plunger out and put back in. It will make a loud snap when it goes into the right position... Leaving it on all this time may do damage to the magnets. Hopefully you OK there...

The only other thing that might draw 11-12AMPS is your ceiling lights all on. Each incandescent automotive bulb will draw 1 AMP. Each ceiling light fixture will have two of these bulbs...

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Old 11-27-2014, 04:09 PM   #10
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You may want to pull all your fuses, and with the battery disconnected take your ohm meter and check each of the fuse holders to ground and see if that will show you which circuit the LARGE drain is on. With the main 12Volt fuses out you can put the meter on the Battery Charge controllers source to ground, to see if that is bad.
OR
If you have a volt/ohm meter that allows you to measure Amps (greater than 10amps in your case) you can pull all the DC fuses, plug in shore power and measure the amps across each fuse holder to find the culprit.

Just my thoughts,

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