question

Wayne avatar image
Wayne asked

MPPT 75/15 SmartSolar disconecting.

Afternoon all, Distributor/Installer we have now had a number of customers that we have installed a 75/15 and after a period of operating normally, they stop operating, no blue tooth and we have found a total power cycle off on (disconnect battery and solar) is the only way to get them going again.

We have today received info from a trade client who have had approx 10 units do the same.

The difference with the trade customer, immediately after install, they were prompted to upgrade firmware 1.61 to 1.63.

After the firmware updated, they get the conformation of successfull upgrade, the units then shut down, no LED's displayed.

They found the only thing to work is to disconnect battery and solar, reconnect.

They note at this point the firmware has not updated, they repeat the firmware update.

On the second cycle the unit stays connected and operates correctly.

We have only seen this behaviour in the 75/15 SmartSolar.

Interested to hear what others have observed.

MPPT SmartSolar
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4 Answers
Wayne avatar image
Wayne answered ·

Thanks, this is a broader issue than a firmware upgrade.

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klim8skeptic avatar image
klim8skeptic answered ·

@Wayne There is an firmware update available for the 75-10 and 75-15 mppt's.

Look here.

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Wayne avatar image
Wayne answered ·

Thanks for that!

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Hi @Wayne

Do you know whether the MPPTs have been updated to this version and if so, if this solved the issue?

Kind regards,

Thiemo van Engelen

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Thiemo van Engelen (Victron Energy staff) avatar image
Thiemo van Engelen (Victron Energy staff) answered ·

Hi @Wayne

Did you update the MPPT to v1.64 and have you seen the issue again after this?

Kind regards,

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