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cjwilding asked

BlueSolar MPPT 75/15 showing 0 amps solar

I have a bank of 6 AGMs each over 100 Ah. The bank is charged by x8 145W flexible panels. Each panel has a Bluesolar MPPT 75/15 with identical settings. Two of my MPPTs show 0 amps from solar, the voltage from solar looks fine (19v) and from batteries between 12v - 13v. Each MPPT has the same settings. And can see solar, and battery, volts and amps. I have checked the fuses.

MPPT Controllers
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cjwilding answered ·

screenshot-20210525-114712.jpgscreenshotsscreenshot-20210525-114642.jpg


screenshot-20210525-114642.jpg (259.3 KiB)
screenshot-20210525-114712.jpg (331.4 KiB)
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klim8skeptic avatar image
klim8skeptic answered ·

I would be having a really good look at the PV side of the mppt. Fuses/breakers, all connectors, and the wiring....

The panels can deliver 20 Voc, but not at any usable current.


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cjwilding avatar image cjwilding commented ·

It does seem to be wiring - connections related. Thank you.

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Manda avatar image Manda cjwilding commented ·
hi. Quite old post, but I have the same issue with my bluesolar 75/15 (connected via bluetooth dongle). Checked fuse, wiring-connections, but still not working…
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klim8skeptic avatar image klim8skeptic ♦ Manda commented ·
Post some screenshots.
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