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solarone avatar image
solarone asked

Mppt 100/30 no output

Hi

I have a blue solar mppt 100/30 and is outputting zero watts,the bulk charge light is solid blue but no current/wats into the battery

What could be wrong ?

Thanks

MPPT Controllers
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markus avatar image markus ♦♦ commented ·

This charger has no blade fuse, as far as I can remember, so what is your Absorption voltage set to?

If everything is set up right, maybe your charger is just broken...

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markus avatar image markus ♦♦ markus ♦♦ commented ·

Or maybe it's too cold and the charger is charging lithium?

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solarone avatar image solarone markus ♦♦ commented ·

Hi Markus

Thanks I’ll double check the settings

It’s charging a 100 ah agm battery from the 120 watt panel and day temps at the moment are about 30 degrees Celsius

Thanks

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markus avatar image markus ♦♦ solarone commented ·

Ok, so you live on the right side of the planet in this time of the year :o)

But if your Absorption voltage is set to a reasonable value, the chances that your charger is just broken are high, unfortunately.



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1 Answer
solarone avatar image
solarone answered ·

I found the problem with this controller,the internal fuse had blown once replaced it’s all good again

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fcriado avatar image fcriado commented ·

How did you change it? You did it yourself or had to send it back?

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solarone avatar image solarone fcriado commented ·

As the unit was out of warranty I changed it myself.

The fuse is a 50 amp fuse (100/30) soldered to the board (looks like a very little midi fuse)

Be careful when taking the lid off as the stuff they use to seal the unit is stuck to the top a of the lid

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