Hi, I'm new here. I just got a Victron MultiPlus 12|1200|50 and and having a very strange issue with it.
It basically will not turn on. I have it connected to a 12v 100Ah LiFePO4 battery. I set the inverter for LiFePo4 batteries via the dip switches ( dip 2 on, store settings by cycling dip 6). When turning on the inverter to either "on" (inverter mode) or "charge", it literally does nothing. No LEDs come on. When turning it off, I get one brief flash of the orange "charge" LED. Nothing else. It's not charging the battery, not responding to AC mains, and not putting out AC. The battery is new and is showing 13.28V on a multimeter.
I've tried reverting the unit to default (all dips off), leaving it off of DC, mains, etc. Nothing changes. I've also tried a smaller lead-acid battery on DC in case that was an issue. I've checked the 200A DC fuse in the device and that is also OK.
I'm now at my wits' end! I don't know what is wrong and no combination of anything I've tried has had any effect.
I must note that when I first plugged on the battery (just to test), the inverter was on the default battery setting, and the green inverter LED came on. I then turned off the device and changed to LiFePO4 mode via the dipswitches and I think that is where my problem started. Also, the device still flashes all LEDs 4 times when storing settings, so it appears to be responding, just not turning on.
If anyone is able to guide me in the right direction, that would be GREATLY appreciated.
Video of the problem is below.
WhatsApp Image 2023-05-19 at 16.51.14.jpegWhatsApp Image 2023-05-19 at 16.52.26.jpegWhatsApp Video 2023-05-19 at 17.09.34.mp4