I've just realised the Sterling BB1320 battery charger in my van is not powered up. Does anyone have any troubleshooting steps I can follow? Which fuses to check etc? I am a complete noob when it comes to this.
Picture of the power unit and battery charger attached.
The bb1320 will charge the leisure battery from the van battery when the engine is running and a certain output voltage is reached - put van blower to setting 2 to increase the alternator output. You should see some LEDs on the bb1320 then. There should be a large fuse between the van battery and the bb1320. Mine is near the van battery and about 30A from memory.
The EC155 is used on mains hookup to provide 12v to the leisure equipment and will have fuses for each circuit. It will also charge the leisure battery.
it looks like its installed at the rear wheel arch - so 5-6m away from battery,
so you should have at lease 16mm2-25mm2 cable (see page 13)
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id take that to shop to be looked at? - you might need it recabled.
i certainly wouldn't be happy with that.
though id imaging the initial problem is a blown fuse caused by excessive current, caused by voltage drop over the incorrect cable for a DC-DC charger.
The conversion was done by Platinum Wave Campers in 2021 though I am the second owner since it was done. I called them about the issue and they ensured me the wiring is correct.
This is the chart for my unit, 10mm2 cable which looks right.
I'll check the fuse by the starter battery, that's the only one I am yet to check.
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