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Old 06-18-2012, 04:29 PM   #1
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Changed house batteries and have no interior power.

I have a 2002 ItascaHorizon diesel pusher with a 330 Cat. My house batteries were dead and were replaced. I used two golf cart batteries, as I have in the past. This time when I finished I have no house power. I've double checked the connections on the batteries and they are correct. I've checked breakers and fuses and now I don't have a clue. What am I missing?
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Old 06-18-2012, 04:35 PM   #2
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Hi and welcome to the forum.

I'm sure some of our experts will be along with advice soon. I'm sure you checked already but is the cutout switch for the house batteries turned on? Do you have the proper voltage reading at the batteries?

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Old 06-18-2012, 04:47 PM   #3
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I show no power whatsoever. When I plug in the shore power I have nothing.
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Old 06-18-2012, 04:56 PM   #4
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I show no power whatsoever. When I plug in the shore power I have nothing.
I understand but have you checked the 12v cutoff switch to ensure it's turned on and have you measured the voltage at your batteries? Before beginning the job the 12v cutoff switch should have been turned off and then back on once completed.

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Old 06-18-2012, 05:00 PM   #5
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I looked thru the owners manual and could not find any mention of a 12V cutoff switch. Where would it be located? I'm open for anything.
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Old 06-18-2012, 05:14 PM   #6
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On my Itasca DP it is a little red rocker switch located around the right knee of the passenger. It's most visible as you enter the coach and just look to the left of the passenger seat.

The switch is typically used to disconnect the house batteries from the coach during storage so that no phantom loads drain the batteries. It operates a solenoid which may have been tripped if the battery work began without having the switch turned off.

It's a bit of a long shot but should be one of the first things checked... along with measuring the voltage at the batteries to ensure that your new batteries are ready to go. You've said that you've already ensured that they are wired correctly.

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Old 06-18-2012, 05:17 PM   #7
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Are the batteries wired properly, in series not parallel.
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Old 06-18-2012, 05:19 PM   #8
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I checked the voltage on the batteries prior to install, and I'll look for the 12V cutoff switch tonight. I appreciate the help.
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Old 06-18-2012, 05:21 PM   #9
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Are you sure you picked up all the cables that were in place before you disconnected them? It is very easy to drop one and miss it as you put the others in place. (been there) Go back and take a good look inside the battery compartment and make sure nothing was overlooked.
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Old 06-18-2012, 05:22 PM   #10
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Batteries are wired in series. I even took a photo of them prior to removing the bad ones. Thanks, I am very capable of screwing that up, thats why the camera on my phone gets used a lot.
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Old 06-18-2012, 05:26 PM   #11
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On my 02 Horizon the switch is located on the dash just above the generator start switch...It is marked "aux batt"...Make sure it is on...
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Old 06-18-2012, 05:28 PM   #12
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I"ll check the cables. Why would I not have power when plugged into shore power.?
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Old 06-18-2012, 05:28 PM   #13
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On my 02 Horizon the switch is located on the dash just above the generator start switch...It is marked "aux batt"...Make sure it is on...
This is NOT the switch I'm speaking of and I don't think it'll help him. I think the "aux batt" switch connects both sets of batteries (house and chassis) and is only a momentary switch... not one which can be turned on and off. At least this is how it works on my rig.

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Old 06-18-2012, 05:31 PM   #14
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I"ll check the cables. Why would I not have power when plugged into shore power.?
Because the power you need is 12v and shore power is 120v. The 12v will come from your inverter which is powered by the 120v. But, if anything is wrong with the inverter or if there's a wiring problem... or if the cutoff switch is in the wrong state... no 12v will pass through to the house.

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Old 06-18-2012, 05:33 PM   #15
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This is NOT the switch I'm speaking of and I don't think it'll help him. I think the "aux batt" switch connects both sets of batteries (house and chassis) and is only a momentary switch... not one which can be turned on and off. At least this is how it works on my rig.

rick
That is the switch I am talking about...It disconnects 12v power and that is how it is marked...The switch that connects all the batts is marked "aux start"...I have the same coach...
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Old 06-18-2012, 05:37 PM   #16
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Quote:
Originally Posted by movin-on View Post
On my 02 Horizon the switch is located on the dash just above the generator start switch...It is marked "aux batt"...Make sure it is on...
Quote:
Originally Posted by movin-on View Post
That is the switch I am talking about...It disconnects 12v power and that is how it is marked...The switch that connects all the batts is marked "aux start"...I have the same coach...
Sorry movin-on.

I need to read more carefully.

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Old 06-18-2012, 05:40 PM   #17
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I'll check all the recommendations. I've repalced the batteries before with no issues. Thanks
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Old 06-19-2012, 09:56 PM   #18
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Movin on, was right on. I checked the Aux Battery switch several times, but after Movin on recommended to check it again, BINGO, instant power. Thank you everyone, very helpful forum.
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