EDIT 05 April 2026: - 2025-12-17 Multiplus II units were replaced with a single 10KV Quatro with settings as close to default as possible. On 2026-01-25 during a grid voltage drop the unit gave am Overload error. Disabled LOM. not a single overload event since. NB! THE ISSUE IS THE MP II UNITS. EV…

After 8 months of testing and ZERO overload warnings I can 100% confirm that replacing the MP II with a Quattro resolved the issue. Quattro 10KV gave the error once, disabled LOM and no more overload erors. I got hold of 2nd hand 15KVA Quattro - NOT A SINGLE OVERLOAD SINCE!!! [Capture] 23 Victr…

Hello @Anarchy2007 Could you please do something additional for those widgets that represent the power? Please activate the Show range values, in order to have a much clear image about which was the max power. See below what I mean: [1]

The “VE.BUS” cables run in a sepperate conduit on the left which is blocked from view by the security gate. The cables you see are HDMi, CAT5 Internet Connection and Loose cables that were connected between IoT devices and the MPPT and their relays. ve/bus and BMS CAN cables in this installation ar…

Hi @alexpescaru below is the data wit the changes as you requested from the same event as shown in the original gif image [Capture] Below is from the latest event [Capture]

Latest Overload Warning at exact moment of Grid failure. Values at grid fail: AC-1-Out & AC-2-Out (at grid failure) = 800W approx AC-IN (Measured at ET112) = -100W approx AC-IN (Measured at Inverter) = -460W approx AC Loads …

For your information: I’m also seeing sporadic “Overload Warning” messages for the Multiplus-II 48/5000 in my PoC setup at home. These typically come up when I plug in my electric motorbike (set to charge at 6A / 1.5kW so well within spec of the inverter) to the AC Out and automagically disappear a…

[image] Anarchy2007: Latest Overload Warning at exact moment of Grid failure. Can happen from LOM detection.

Yup I do aggree. I’m still pretty convinced that the whole issue has to do with the long supply cable or grid supply related issue (ie something upstream from the inverter, even maybe the Et112 grid meter. this meter was replaced and no “overload warnings” yet, but has only been a week or so). Over…

Thanks for that. I’m still leaning towards the grid supply / cable as the possible culprit. This seems to be the one thing we both have in common. There was a FW update to address this specific issue a while ago but did not work for me. Please let me know if you ever do replace the supply cable and…

Latest overload event 15:56:23 Overload Warning Event 15:59:50 Grid power failure 16:01:11 Grid power restored [15.56.23] [30min] It’s clear that again at 15:56:23 the Cerbo completely loses track of power distribution. All measurements are completely inaccurate / bizarre for a few seco…

Unless you can get the grid connection changed, there is not much you can do Is anything else happening at the same time such as frequency weirdness? Have you tried power logging? Maybe there is harmonics or something we cant see with normal metering? [image] Anarchy2007: exact moment of Grid…

Multiplus II 48/8000 - Random "OVERLOAD WARNING" messages - ONLY HAPPENS WITH ESS ENABLED - #33 by lxonline - Q&A and troubleshooting

Topic		Replies	Views	Activity
Random overload warnings DIY	32	1182	20 May 2025
Loud humming noise and voltage fluctuations DIY diy , ess , vrm , multiplus_2_gx , multiplus-ii	30	947	14 November 2025
Overload on L1. MP II DIY diy , ess , dess , multiplus-ii	21	379	27 March 2025
High Temperature Alarm/Overload Power Cut Out DIY victronconnect , diy , multiplus , offgrid , domestic	27	742	15 June 2025
Victron Multiplus II - Probleme wie aus dem nichts? Deutschsprachiger Bereich	81	1429	12 August 2026

Random overload warnings

DIY

32

1182

20 May 2025

Loud humming noise and voltage fluctuations

DIY

diy , ess , vrm , multiplus_2_gx , multiplus-ii

30

947

14 November 2025

Overload on L1. MP II

DIY

diy , ess , dess , multiplus-ii

21

379

27 March 2025

High Temperature Alarm/Overload Power Cut Out

DIY

victronconnect , diy , multiplus , offgrid , domestic

27

742

15 June 2025

Victron Multiplus II - Probleme wie aus dem nichts?

Deutschsprachiger Bereich

81

1429

12 August 2026

Multiplus II 48/8000 - Random "OVERLOAD WARNING" messages - ONLY HAPPENS WITH ESS ENABLED

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