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Old 05-14-2019, 12:50 PM   #1
Junior Member
Join Date: Jan 2012
Location: Poolesville MD
Posts: 16
Problem with chassis battery on Canyon Star

A problem recently started with my 2014 Canyon Star 3920 wherein after sitting for several weeks (with no power hook up) the chassis battery goes dead. A couple of months ago I changed out the battery with a new one assuming that the original battery had reached end of life, but the problem continues. In the past the chassis battery always remained fully charged during storage. In fact, I thought that the small solar panel on the roof was provided by the factory for that purpose. But things have changed.

For the time being I have disconnected the negative strap on the chassis battery as I do routinely for the two coach batteries. But I really want to find out the reason for the discharge. Anyone experienced this or something similar? Where should I start looking? Any help would be much appreciated.

John & Vicky
2014 Canyon Star 3920
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Old 05-14-2019, 05:12 PM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 17,426
There are constant draws on the chassis battery when the engine isn't running .
Engine and trans controllers , dash radio memory to name a few. Combined they will drain the battery in a few weeks.
If the battery used to stay up but now doesn't , first thing i'd check would be the solar panel . Is it shaded all day ? Possible blown fuse in it's charge circuit ? Wire left off during battery change ?

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
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Old 05-14-2019, 05:46 PM   #3
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All good tips. Thanks Skip. Time to get busy.
John & Vicky
2014 Canyon Star 3920
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Old 05-14-2019, 06:01 PM   #4
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Newmar Owners Club
Spartan Chassis
Join Date: Jul 2018
Posts: 43
On my 2015 Canyon Star I had a charging issue that affected the chassis battery, there was a blown fuse protecting the circuit for the roof mounted solar panel. The panel wasn’t sealed well and got water in it, that blew the fuse. It was fixed under warranty but if I remember right the fuse was in the engine compartment front and center above the engine in the fuse panel with the clear cover and little tabs you rotate to remove it.
Richard & Denise
2019 VTDP 4310 K2
2019 Expedition, Nighthawk & AF1
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Old 05-14-2019, 08:19 PM   #5
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You will find options to look for related to you chassis battery as far as its lost charge in this link, the BAY STAR'S have the same problems.
There is info on the Solar panel also.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
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problem, chassis, battery, canyon star

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