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Old 04-14-2015, 11:37 AM   #1
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Battery compartment on/off switch

we have a new Jayco Eagle Premiere 375bhfs and need to understand when to have the battery compartment switch set to on vs. off. It seems we cannot power our lights without it being on, even though we are plugged into our home electric.

can anyone help me?
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Old 04-14-2015, 12:43 PM   #2
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I leave mine on all the time except if it is left longer than a few days without external power.
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Old 04-14-2015, 01:56 PM   #3
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When connected to shore power you should still have lights with the battery off/disconnected.

Locate your converter and verify that all breakers are reset. There should also be two 30 amp (green) automotive blade fuses. Make sure they are good. They could be blown and still the battery could run the lights.

It sounds like your converter is not supplying 12VDC to your system.
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Old 04-14-2015, 01:56 PM   #4
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What norty1 said!
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Old 04-14-2015, 04:07 PM   #5
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If the battery switch is off, then you will not have anything work that is 12V. Even when on shore power. The converter sends 12V to the battery, then the battery sends it to the fuse panel for distribution. If the battery is "Off" the 12V to the fuse panel is also off, therefore no 12V power in your trailer.
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Old 04-14-2015, 04:21 PM   #6
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Quote:
Originally Posted by SMS1115 View Post
If the battery switch is off, then you will not have anything work that is 12V. Even when on shore power. The converter sends 12V to the battery, then the battery sends it to the fuse panel for distribution. If the battery is "Off" the 12V to the fuse panel is also off, therefore no 12V power in your trailer.
That is NOT the usual condition. Unless someone can state this particular model isolates the converter from the system via this switch your information is incorrect.

Typically a RV system can supply 12VDC from the converter OR the battery. Both are not required. But are typically both on at the same time. This switch, I am assuming, is a battery cut off switch.
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Old 04-14-2015, 04:41 PM   #7
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My rig works the same way that tnchuck100 explained it. If the battery isolation switch is turned off, all 12VDC in the rig is dead. My understanding is that the converter charges the battery and will continue to charge the battery with this switch off and 115VAC supplied to the rig. Turning off this switch kills the 12VDC output of the battery to the rig and thus all lighting and control voltages (except the step) to everything is dead.
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Old 04-14-2015, 05:01 PM   #8
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Quote:
Originally Posted by hoppers4 View Post
My rig works the same way that tnchuck100 explained it. If the battery isolation switch is turned off, all 12VDC in the rig is dead. My understanding is that the converter charges the battery and will continue to charge the battery with this switch off and 115VAC supplied to the rig. Turning off this switch kills the 12VDC output of the battery to the rig and thus all lighting and control voltages (except the step) to everything is dead.
You might want to re-read what you wrote. You and I are not on the same page.
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Old 04-14-2015, 05:09 PM   #9
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If the power distribution center is wired properly, it will not matter if you disconnect the battery, while on shore power, all the 12VDC items in the TT will continue working off of shore power. Of course, Jayco may have started wiring the 2015 models differently that the previous models. Don't even bother asking the dealership, they will have no clue.

I would check the 12VDC main fuse in the power distribution center that supplies 12VDC power to all the other fuses in it. Check to see if the reverse polarity fuse in the distribution center may have been blown.

I believe that the MH's are wired differently than the TT's because they have a house battery and an idolater for the starting battery.

For the best answer, contact Jayco Support (service@jayco.com) with your question. They usually respond on the same day.

Just my thoughts

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Old 04-14-2015, 05:51 PM   #10
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Sorry tnchuck100, I meant sms1115.
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