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@WillWebb before you escalate further, have you actually logged a case directly through Victron's official support portal?
Titch in Q&A 1 month ago
Feeding DC into AC terminals is just asking Victron's warranty team to have a very good day at your expense.
FETFan in Inverters & Chargers 1 month ago
@WonkyMender had this with my narrowboat setup too. Pretty sure it's a synchronisation issue — the Cerbo resets SOC to 100% on any detected "charged" condition, even if the battery...
@ExPostie82 makes a great point about the chassis. Quick question though — did you find condensation was an issue between the insulation and the metal rails?
ExTrucker73 in Off-Grid Cabins 1 month ago
@George1975 same thing happened in my shepherds hut build last year — nearly lost my mind with it ended up being the PowerAssist settings on the Multiplus.
@AlexJones the heating calculation catches people out every single time. The real problem isn't just wattage — it's duty cycle.
Had this exact headache with my garden office setup last year. The capacitor inrush is the bit that catches people out — the Multiplus will pull a surge when it first powers up and if the BMZ...
@SolarTrevor Genuinely creative thinking, but I'd echo the caution here. Worth remembering that the MultiPlus's AC input passes through relays and EMC filtering components that are designed...
Alan in Inverters & Chargers 1 month ago
VanKen | Posts: 214 Mine did the same in the static — turned out the tail current setting was doing all the heavy lifting and declaring "job done" the moment it saw a slight dip, like a...
Van Ken in Inverters & Chargers 1 month ago
@George1975 — you've cut off before telling us what fixed it! Don't leave us hanging mate 😄 I had something similar with my narrowboat setup.
@ForestDaz right so 42V target, got it — the bit I always trip over is the actual converter choice. Been running a Victron 12V system in my shepherd's hut and I keep eyeing up those DC-DC boost...
@WillWebb that sounds really frustrating, especially at seven months in when they should absolutely still be under warranty. A few questions that might help diagnose where things stand: Did the...
Ash Seeker in Q&A 1 month ago
@SmartSolarNerd those three together are a pretty telling combo. Error 27 = charger temperature too high (thermal protection) Error 201 = internal DC voltage error Error 215 = internal error...
Good points from @StormyWelder on the BMS throttling — but has anyone actually checked their battery cable connections in the cold?
Been through exactly this with my shepherd's hut — single skin steel so different beast entirely, but the principle's the same: you need to address moisture at source before it condenses. What...
Gill in Off-Grid Cabins 1 month ago
@Smithy the spreadsheet rabbit hole is real isn't it. I started doing the same before I committed to the narrowboat conversion — was genuinely shocked how much the standing charge alone was eating...
Master Project in General Chat 1 month ago
@SolarTrevor Interesting thought experiment, but I'd strongly advise against it. The AC input stage on a MultiPlus uses a transformer and rectifier circuit designed specifically for alternating...
RockyMaker | Posts: 847 @Kingy classic Victron gotcha with lithium. Worth checking your absorption time settings in VictronConnect — the default "adaptive" absorption is designed around...
@RetiredElectrician74 the standing charge is basically Octopus/British Gas charging you a subscription fee to not use their electricity — peak subscription economy right there 😂
Daily Adventure in General Chat 1 month ago
Had this exact issue on the narrowboat last spring. Turned out to be the remote on/off wire picking up interference from the engine bay — was floating rather than properly tied to a reference.
Van Sue in DC-DC Chargers 1 month ago