question

@GSwannell Bulk blue led flashes but no charge happening. Normally this indicates that the mppt is waiting for solar array to get up to power (for charging).

Both units have remote ve.direct non-inverting remote on/off switch. Probably worth temporarily disconnecting those to check charge enable/disable.

The solar panels are working fine as I have hotwired them temporarily to the batteries and monitor them. You wired your panels directly to the batteries? That will work in a tight spot, but be aware that as the batt voltage goes up, the array current will increase. Extreme chance of battery damage.

Post some screenshots of your mppts detailed history. Also of the rx/tx port settings.

And check the “off reason” on the main page in VictronConnect: as long as the charger hasn’t started charging, it will tell you why it didnt.

Thanks very much for the quick answer to my problem. All fixed now but I will tell the story. I am at anchor in my sailing boat so rely on solar. I have FWD solar panels 860W and AFT panels 360W going into separate MPPT 100/50 controllers. It appears a few days ago the remote on/off switch power wire pulled out, but the FWD panels on/off plug was for some reason already disconnected so the FWD panels kept charging. I then upgraded the software on the BMV712 and the MPPT controllers and both panels would then not charge even though I could measure PV voltage of 20V. Last night I noticed the Victron app on my iphone was not up to date and after updating to v5.90 the MPPT software updated to Firmware v1.61 Bluetooth Rev2 Firmware v2.44 and Bootloader v1.16.

So this morning once the sun was shining I connected all up without the remote on/off plugged in and all worked fine. I then discovered the problem with the power lead to the remote on/off devices, so that is all now fixed as well.

You put me on the right track disconnecting the remote on/off. Thanks very much.

Out of interest the history screen grabs are attached from yesterday. I understand some of the risks hot wiring solar direct to battery and was monitoring it. I have 600aH LiFe batteries and often see 50 amps of solar going in, so yesterday I was not too concerned at 15 amps hot wired going in at battery voltage of 13.2V.

Thanks again for your help.

AFT panels history1.PNG