Hi I’ve had 3 Panasonic 245w solar panels fitted. voltage Vmpp 44.3 ,voltage Voc 53v. I also bought a smart solar 150/35 mppt at the same time as I was was advised by the retailer that this would be suitable for the panels. I also told him the panels would be wired in series. All to be fitted on a narrowboat.
To cut a long story short my installer connected them on a very bright sunny morning. As a result the smart solar app soon showed an over voltage of 153.81v
Obviously this is higher than the rating of the mppt . Now the the blue led is flashing every 3 or 4 seconds. And it’s not charging the batteries. I’ve also disconnected one of the panels to bring the voltage down but this hasn’t made any difference to the led status. Looking at the manual this indicates an internal error, fuse blown?
So my question is have i interpreted the fault correctly and is it repairable? Just looking for confirmation of my thoughts before I send it victron for possible repair.
I will be re- wiring the panels in parallel to bring the voltage down as spending more on a bigger mppt seems like over kill for my installation
Many thanks Pete