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Old 08-02-2021, 06:35 PM   #1
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Tiffin Breeze charging issue

We just purchased a 2011 Tiffin Breeze and when I parked it at the storage lot I forgot to turn off the house batteries. Needless to say when I went to the storage lot to bring it down to the house today the house batteries were flat. I figured no problem the chassis batteries are charged so I started the engine figuring that would charge the house batteries also so I could raise the night time shade that was all the way down on the windshield. To my surprise running the engine does not charge the house batteries. Is this normal or is there some component that is defective do the Breezes have diode isolators like my old 1997 Monaco had? I had to put a Xantrex Echo Charge on my Monaco. I eventually brought my small 2K watt portable generator to the Breeze and charged the batteries enough to be able to start the Diesel Generator. But I need to correct this issue.
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Old 08-02-2021, 06:47 PM   #2
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All motorhomes I have had in the past 20 years have had a “boost” switch/relay that joins both house and chassis batteries together while you are holding the switch. With the engine running, this is often enough to ge the generator started.
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Old 08-02-2021, 06:57 PM   #3
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Quote:
Originally Posted by GrantR View Post
All motorhomes I have had in the past 20 years have had a “boost” switch/relay that joins both house and chassis batteries together while you are holding the switch. With the engine running, this is often enough to ge the generator started.


Yep I tried that. It did not join the Chassis batteries to the House batteries. I suspect the solenoid gets its power from the House side and did not seem to close or the solenoid is bad. Have to check that tomorrow.
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Old 08-04-2021, 09:32 PM   #4
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Does anyone know if there is someplace I can get a wiring diagram for a 2011 Breeze?
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Old 08-05-2021, 02:09 AM   #5
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They have gone away from the diode isolator and now use a isolation solenoid.

It will be sitting between cables going to each battery bank. It actavated when there is a a charging source on one battery bank or the other.

That same solenoid is closed by the boost switch.

Here is a basic layout, showing its wiring.Click image for larger version

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Old 08-06-2021, 07:23 AM   #6
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Originally Posted by twinboat View Post
They have gone away from the diode isolator and now use a isolation solenoid.

It will be sitting between cables going to each battery bank. It actavated when there is a a charging source on one battery bank or the other.

That same solenoid is closed by the boost switch.

Here is a basic layout, showing its wiring.Attachment 338410
Thank you that explains quite a bit.
Do you know if there is some delay logic for the closing of that relay?
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