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jockhamilton01 asked

Mppt 75/15 green and yellow flashing

I’ve just fitted a 75/15 to my boat. It’s a 24 v system. I have two 150W panels in series. I’ve triple checked the polarity. The green and yellow Leds are flashing and it’s not charging. I’ve tried disconnecting both pv panels then the battery And re connecting. No difference. The panels are putting in about 45 volts. I have 24 V at the battery and on the battery connectioon on the MPPT, hoping for some help please?

MPPT Controllers
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klim8skeptic answered ·

Mppt manual, led status.

Charger or panel overvoltage??

Disconnect the PV first, then the battery.

Connect the battery first, then the PV panels.

Is your Mppt a smart version?

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jockhamilton01 answered ·

I’ve tried that. It is a smart one but I’ve not managed to connect, it wants to pair with the phone and asks me to enter the number on the MPPT but I’ve not found the right number yet.

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·

The default PIN is 000000 (six zero) and you have to use VictronConnect..

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jockhamilton01 answered ·

OK I tried again, I found the right code, it connects, the firmware updated. I tried disconnecting the pv panels again then the battery, then waited 10 mins, re connected. Just the same .75f6b174-50a8-4f83-bbd2-0bfbe1e50550.jpeg


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klim8skeptic avatar image klim8skeptic ♦ commented ·

Check that the battery is set to 24v (suspect is set to 12v).

Mppt manual, Battery settings.


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