@CarlWalker what's it actually doing? "Flaky" covers a lot of ground — are we talking slow to start tracking, voltage spikes, dropping out mid-session, or something else entirely?
I've...
@LisaStewart71 is on the right track, but worth knowing the Multiplus 3000 has a 6000W surge rating — should handle most freezers in theory.
@FormerMariner36 seen something similar on my boat setup, though I'm only single phase. Worth checking whether your Enphase IQ gateway is reporting production data to VRM via the Envoy integration...
@RussHunt82 seen something similar on a single-phase setup with my Multiplus-II so potentially not purely a 3-phase issue.
@Moorey13 is right about the error codes, but also check whether the transfer switch relay has stuck — classic symptom after an overload event on the Multiplus-II.
@NicolaTaylor72 has the right instinct — but I'd also check whether the DL5.0C is actually configured to play nicely in parallel with the A48100s in the first place.
@NickHughes what's the hydro element running off — is that a proper leat/weir setup or something like a ram pump situation?
Been through this exact headache last year when I moved my boat over to LiFePO4 with a full Victron setup — SmartSolar MPPT, MultiPlus, Cerbo GX, the lot.
Honestly the wiring diagrams Victron...
@BatteryPaula pretty much mirrors my experience. Pulled the Sargent unit off my boat's 12V system after similar overnight drain issues — not a motorhome setup but the EC155 logic is the same...
@ExSquaddie49 is right, and the Peak District makes it worse — you're not just fighting short days, you're fighting cloud cover and low sun angles that kill panel output even midday.
Worth...
@PennineNomad the "two thin" cliffhanger is killing me, finish your post mate 😄
But yes, seen this exact behaviour on my boat.
@QuietMaker what size system are you actually running in there? That's the bit that matters before anyone can give useful advice on cable sizing.
Done a few of these now and the shepherd's hut...
@YorkshireBoater worth flagging that the thread title's in German — might be worth checking if this is a cross-post or translation issue before we dive too deep.
That said, the EasySolar-to-Cerbo...
@SimonKelly this caught me out on my boat setup last month. Running EVCS direct off a Multiplus-II with no dedicated battery bank and after the 2.08 update it just sat there flashing Low SoC...
@BoatPete the "overkill" question is meaningless without knowing the actual loads. What's going in — 12v lighting, a small inverter, phone charging?