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Old 08-07-2019, 01:42 AM   #1
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Brand: Thor Motor Coach
State: Michigan
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THOR #16241
House batteries

Just put 2 new house batteries in our 1999 Hurricane. We cannot figure out how to use them. There is panel just inside the door labeled "Battery Storage Control". 1 toggle for the chassis, 1 toggle for the coach, and a small toggle for the steps. To start the motor in the RV we have to push the " chassis" toggle to "connect". A green light comes on. If we don't " disconnect" later the battery for the motor goes dead. The other toggle labeled "coach" and when "connected has a red light that comes on. We use that when we are plugged in to 30 amp shore power. I am not sure if it is wired correctly. We cannot figure out how to camp using just the house batteries.
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Old 08-07-2019, 01:47 AM   #2
gmc
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Brand: Thor Motor Coach
Model: Hurricane 32A
State: Florida
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THOR #2829
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Originally Posted by pjvbmills View Post
Just put 2 new house batteries in our 1999 Hurricane. We cannot figure out how to use them. There is panel just inside the door labeled "Battery Storage Control". 1 toggle for the chassis, 1 toggle for the coach, and a small toggle for the steps. To start the motor in the RV we have to push the " chassis" toggle to "connect". A green light comes on. If we don't " disconnect" later the battery for the motor goes dead. The other toggle labeled "coach" and when "connected has a red light that comes on. We use that when we are plugged in to 30 amp shore power. I am not sure if it is wired correctly. We cannot figure out how to camp using just the house batteries.

With everything off and shore power disconnected, just turning on the coach switch should engage the coach batteries and provide power to all house 12v systems.
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Old 08-07-2019, 03:23 AM   #3
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
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Welcome to the forum.

Also worth noting is that when you are plugged into shore power you need to turn on both coach and chassis battery disconnect switches at the door in order to charge all the batteries from the coach converter......I am assuming your 1999 coach uses some version of the RV Custom Product BCC (Battery Control Cabinet) mounted in the engine bay.


It is a good idea to also buy a cheap digital voltmeter (multimeter) if you don't already have one and actually check voltage across each battery set (coach and chassis) when on shore power, with the switches on (coach lightly loaded). You should measure 13+ volts DC if the batteries are charging OK......if not then there may be a problem in the charging circuit(s) that needs to be resolved.



One other little item that fools many folks is that the Light on the coach disconnect switch will come on when you are connected to shore power, but that does not mean the coach batteries are actually being charged by the converter. You have to turn on the coach battery disconnect switch to actually connect the coach batteries to the converter output. I rarely boondock and usually always connect to shore other than when travelling, so my coach and chassis battery disconnects are almost always left on the entire camping season. Less wear and tear on the latching relays and no questions of if they are on or not.
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