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error codes

MPPT RS 450/100 Error 35

Hi there,

Recently I saw an Error 35 for no obvious reason on my MPPT RS 450/100. Configuraiton is 9x 375Wp panels on each tracker, east-west configuration. The short circuit current of the panels is around 11,5A according to the flash-list of the manufacturer with a Imppt of around 10A.

The error did happen when there was sun / clouds in short alternation leading to sharp bumps in solar production. Voltage was around 350V according to the logged data, my battery voltage is between 46V and 52.4V (pylontech battery).

Any clues what might be happening here? The unit is two month old...

lukas asked
lukas commented ·

3 Answers

VE.Can port error on Cerbo

I noted a Passive-Error on the VE.Can Port screen of my Cerbo today (screenshot attached). I only have one connection to the BMS port (the FreedomWon battery) and no connections to the VE.Can ports. There is also no terminators on ports. Could the latter be the reason?

Any ideas?


brianor asked
brianor commented ·

1 Answer

Multiplus II and CT Clamp Error 24

We are experiencing issues when using the external CT clamp on the Multiplus II 5000 inverters.

We have recently installed around 15 systems with the external CT clamp and on approximately 4 or 5 of them we are experiencing Error 24 occasionally when grid power returns after a grid power failure. We are not using the second output of the inverter. We are running ESS.

From the Victron website:

"Error 24 is raised when a Multi or Quattro detects current flowing through the back-feed relay during a period when the relay should be open."

The error seems to occur more often when there are inductive loads like swimming pool motors connected to the non essential loads between the CT clamp and inverter. It also seems to occur more frequently the larger the non essential load is. From numerous tests on these sites, when we unplug the CT clamp the issue no longer occurs.

We have confirmed that are no issues with neutrals etc. The issue seems to be related to the surge in current through the CT clamp when the grid power returns and all non essential loads start up. We have tried multiple Grid codes as well as disabling LOM detection but nothing seems to lower the systems sensitivity when grid power returns.

garthvs asked
Daniël Boekel (Victron Energy Staff) commented ·

2 Answers

Help! My Victron Phoenix Multiplus has gone crazy - Video link attached

Hi all, total noob here, and I have a problem.

I am based in the North of the UK. I have a Narrowboat on an offline mooring, (no shore power) and my Victron Phoenix Multiplus inverter has been happily managing power from my engine alternator, 475 watts of solar panels via their own separate control unit, and occasional shore line hookups, without difficulty for several years. The boats internal systems are 12 volt, and it is also fitted for UK mains voltage via the inverter or shore power. For the past two years I have exclusively used the 12v power only.

On attending the boat with an engineer for the first time this year for its annual service, he confirmed that both engine and batteries (1 starter, five leisure) were all healthy, and the batteries were charging just fine from the engine. All the onboard 12v systems - lights, fridge, tv etc - also appeared to be working just fine.

However, *this* is what the Phoenix Multiplus looked like (30 second clip):

Does anyone know:

a) what the lights are telling me?

b) what could have caused this? (everything was working fine when I last left the boat and no one else has had access to it in the interim)

c) How serious is this?

d) What, if anything, I can do to fix it?

I have zero technical knowledge so reading the manual didn’t help, and I still don’t know if this is a ‘oh, just hit a reset button somewhere’ issue or a ‘panic, it’ll burn your boat down’ issue. Also, boat electricians are rarer than rocking horse doodoo round here, so if I need one, and manage to find one , I at least want to have some idea of what the problem might be before they start sorrowfully shaking their head, sucking their teeth, and emptying my wallet...

Tl:dr - I’m pretty desperate for someone who knows what they are talking about to explain what the hell is going on to me in words of one syllable, and suggest what I might usefully need to do next.

All answers gratefully received, either here on or the YouTube comments section.


cthonicist asked
Paul B commented ·

2 Answers

GX monitor error code 42

I found this error code 42 (storage is corrupt) on my color control. Everything seems to be working ok. It shows the AC loads and how many watts the batteries are getting from my panels,

ejm asked
Alexandra answered ·

1 Answer

My multiplus 24/5000 gives an error that i cannot find in the toolkit app. Does anyone know what it is?

Low battery led is steady

Temperature is flashing alternating with both

Absorption and float.

Other leds are off

I have no battery temperature sensor installed

karel-duran asked
Paul B answered ·

1 Answer

Fronius keeps giving error state 112 on MG50

My fronius keeps tripping to error state 112 in my MG50 setup of 10kva quattro, 8kw fronius primo, and victron 250/100 mppt. The unit has been working fine since February 17, this issue started two days ago. I have checked the voltage output of the victron inverter and it's fine.

ijeamaka-omayeka asked
ijeamaka-omayeka commented ·

1 Answer

Blue Smart IP22 12/30 (3) - Error LED

Your browser does not support HTML5 video.What does this error means. Happens after connecting to AC. See attached video.

jake asked
Thiemo van Engelen (Victron Energy staff) commented ·

4 Answers

GX Error #48 DVCC with incompatible firmware


I have a installation with the following alarm: GX Error #48 DVCC with incompatible firmware: Warning.

The installation consist of a multiplus, a cerbo, a touch display, 4x pylontech us 3000c batteries and a oldiesh 70/150 amp blue solar mppt.

The MPPT runs on ve-can port @ 250kbit/s, the pylontech is running on bms-can port 2 @ 500kbit/s

What does the error mean and how do I get rid of it.

The system seems to work fine

wilhelm1987 asked
drdiesel answered ·

1 Answer

Multiplus II – Ground relay test failed #8 - Error 11 0x24

Hello everyone,

This device worked perfectly over the past two weeks and today it started dropping the AC loads.

This notification is displayed – “MultiPlus-II 48/5000/70-50 - #8 Ground relay test failed”

The VE.Bus Error report shows – “Last VE.Bus Error 11 report 0x24/Error occurred/GND Relay Error”

When I restart the Multi it produces the error right away. The bulk and absorption LEDs are also on.

Current firmware version is v471 (Multiplus II software version: 2623471)

I have done the following:

-Verified that AC-in GND is properly connected to grid earth.

-Tested for voltage between AC-in GND and AC-in Neutral. Ok - no voltage measured

-Verified that earth and neutral is not connected somewhere. All ok.

-Physically disconnected all cables from AC- out1 and AC-out2 to verify that there is no problems with any of the loads.

-Switched loads directly to grid via change over switches - all loads functions properly.

-Tested RCDs all ok.

Thank you,


jeanmc asked
bernard-forrer answered ·

4 Answers

Error 24 Quattro 48v 15000kva

Hi, my system was working fine, but a few days ago on Venus I had error 24, I read in the error article Error 24: switch system protection started. turn off the inverter and after 4 hours I turned on however we do not use a generator or public network. Today the error reappeared without success for it to work again.


I do not think it was an overload since in the advanced parameters it shows me the maximum power consumption does not exceed 3000w per quarantine


Jimmy Sanchez Huerta asked
Nazareth Kevorkian commented ·

2 Answers

Remote VEConfigure error: mk2vsc-57 Product, target number does not match file. Is this a known error?

Remote VEConfigure error: mk2vsc-57 Product, target number does not match file.

Is this a known error?

dhw asked
dhw answered ·

2 Answers

phoenix inverter red slow blink green fast blink question

i have a phoenix 12v/800 inverter, it was working fine, i replaced my batteries with trojan golf cart batteries, the new batteries have 13.7 volts, my inverter stopped working and is blinking red and blinking green twice for every red blink, im having trouble locating this code, please advise

sean6995 asked
Matthias Lange - DE answered ·

1 Answer

Error #3 where turned off with remote console

i have error 3 on multiple systems using multiplus inverters so I don’t think it is a cabling problem.

the systems are 3phase with switch as group un-ticked, only mains connected to L1 for charging, as soon as you turn the inverters off via a venusgx or via modbus the alarm is triggered, you can’t then restart the inverters without acknowledging the alarm. Any chance you can test this?

p.s. I’m not using home made cables and I’ve tried various makes cables

I have confirmed this on 3x 48v 3000kva multiplus2 and 3x 24v 1200va multi plus as well

offgridsolutions asked
offgridsolutions commented ·

2 Answers

How to fix error 22 ?
  • How to fix VE.BUS Error 22 ?

beshoy asked
beshoy commented ·

1 Answer

Phoenix 24/800 switches off at 250W and consumes 20W with no load?

I just connected the new 24/800 Phoenix to my battery with 33,5V.

First surprise: it consumes 20W? (switch on Pos. 1)

second surprise: when plugging in a drilling machine it runs perfectly, consumes 265-250W and after 10-15 seconds it switches off with error code 2 times blinking - overpower?

Why is 250W too much?

teplus asked

0 Answers

Please help me identify this error/ok code (split phase Multiplus 3k-120V)

Recently my BMS disabled charging due to low temperature (at approximately 2021-03-17 0710 hrs) and as a result the batteries fully discharged. When I realized this, I raised the temperature to the point at which they could charge, but the Multipluses would not charge the batteries. The VE.bus BMS was not preventing them from charging the batteries and yet the inverter-chargers showed "off" on my Cerbo GX.

I tried completely shutting everything down and disconnecting the batteries from all loads and then powering it all back up multiple times, to no effect.

What I thought might be happening is that there was some kind of internal "minimum charger restart voltage" that was not being met since the batteries were down to about 11V. So I hooked my truck up to the trailer and used the 7-pin auxiliary power circuit (which is wired to an Orion 12/12-18 charger) to charge up the batteries. Several hours later (at approximately 2021-03-18 2023 hrs), when the batteries hit about 12.9V, the Multipluses started back up and began charging the batteries. Now everything appears normal.

Can anyone explain this behavior? Specifically, why didn't my Multipluses start charging the batteries once the VE.bus BMS allowed them to as a result of the batteries exceeding their "minimum allow-to-charge temperature"?

Here is a link to the error codes (which I cannot find in any of the VE.bus or Multiplus documentation, Victron Toolkit, etc.) that the Multipluses were flashing while the problem was occurring:

Here is a link to my VRM portal:

And here are a couple of screenshots of my inverter and charger configuration. Thanks in advance for any assistance:



jersey-dirtbag asked
jersey-dirtbag edited ·

0 Answers

High DC Ripple - 3x Multiplus 2kVA and 24V lithium battery

Good day,

I have a 3x Multiplus 24V working as threephase system with 6x lithium battery 24V in parallel and a Fronius 3kW.

Nowadays the system is showing Error 60 (Battery high ripple voltage) once a day.

The wiring from batteries to inverter is ok.

When the error occurs, the battery voltage drops ~0.5Vcc.

The system have been programmed with and without ESS assistant and PV Inverter Support.

Someone else have this problem? Is there a solution?

allan-silva asked
Alexandra commented ·

1 Answer

Error codes for victron 48/5000/70-50 multiplus

I have a victron 48/5000/70-50 multiplus running a Redflow ZCell which stopped working (No power from UPS circuit).

LED error codes - absorption, float, Flashing Invertor and low battery.

The system was reset a number of times with no change in status

The system logs don't show anything for the period of time the Victron was down for (2 days). It came back up again with no user intervention (suspect maybe a short power outage may have reset the system).

The BMS for the ZCell is on the UPS circuit and was down as well.

Any help would be appreciated to prevent this happenning again.


mike-fuller asked

0 Answers

Trying to enter PUK code - keypad does not allow letters to be entered

Starter battery in my VW camper died. Replaced battery and now my BMV712 gives me an error code telling me to enter my PUK code. My PUK code is alphanumeric - it contains numbers and letters. The keypad in the app doesn't allow me to enter letters - only numbers. How do I enter my PUK code if I can't enter letters? (iPhone XS, iOS 14.4)

fkfw asked
airstreamin answered ·

5 Answers

Multiplus II on AS/NZ 4777 generating error 11 after a firmware upgrade

This device is set to AS/NZ 4777 (Externally connected neutral). I upgraded from 2628473 to the current firmware, 2628481 and am now getting a relay test followed by EC11. I rolled back to an older beta firmware, 2628430, which prevents the test but that has other issues. Could I have done something wrong or is there an issue here?

troy99 asked
troy99 answered ·

1 Answer

How to check error codes for Multiplus 12/1600/70

Hi all,

First time poster here.

My battery setup

  • 400ah Victron smart lithium
  • VE Bus BMS
  • VE Bus AC Detector
  • BlueSolar MPPT 100/50
  • Multiplus 12/1600/70
  • Victron Smart Shunt

I have started to have issues with my Multiplus 12/1600/70.

When I start the Multiplus with AC connected and battery at 90% SOC the LED status show

  • Charge: Solid Yellow
  • Alarm: Flashing Red

The multiplus does not charge but it does pass through the power to external AC sockets

When I disconnect the AC power the inverter does not come on and the LED's are all blank.

I have checked wiring to multiplus from battery and the internal fuse and all is OK.

Unless somebody has a good idea I think I should try and get some error codes from the Multiplus.

Can anybody confirm I can achieve this with a PC version of Victron Connect and Interface Mk3-USB?

johnjnr asked

0 Answers

Phoenix Multiplus Overload, Low Battery and Temperature error

Our Phoenix multiplus 12/2500/120 has started cutting out when inverting.

It shows error leds overload, low battery and temperature.

This error is not listed in the manual or the Victron toolkit.

Does anyone know what this error means?

chicchis435 asked

0 Answers

Error 21 on Solar charge MPPT

Hi, there isn't a way to know where this error 21 come from. We realised that this error came often when a client just buy a MPPT to us, not a full solar kit. And this happended when there is many solar panels or batteries.

The last case, the client has 6 solar pannels 160W 2s 3p, 960W and 5 batteries in 12V for a MPPT 100/50. (Already told this client to improve his install before change the MPPT)

myshopsolaire asked
a-v answered ·

3 Answers

Bluesolar PWM error

Hi all,

I have done a search but can't find an answer relevant.

I have a BlueSolar Charge Controller-LCD-USB 12V-20A.

It has started showing a flashing error message L5C (or maybe LSC) as shown in the image below. "L" in the manual relates to the output load and sunset etc which doesn't appear relevant.

It doesn't appear in the error codes listed in the manual and I can't see anything useful on Google. It also doesn't appear to have any issues with the operation as it takes charge from the panels, and the loads which come via this unit.

Thanks for any help which can be offered.


davith asked
tdiamanti answered ·

3 Answers

Error #66 for no apparent reason

Been having error #66 on my system for quite some time now.. can't get rid of it, and it always seems to appear either early morning or early evening. Dawn and dusk..
I have 3 x 150/70 mppt running 5 different solar arrays connected into the 3 mppt's and 1 24v battery set, and a 5kw multiplus paired with a CCGX and BMv 712 all have identical settings. All are running latest firmware. Almost everyday, if not every other day I gett #66 error.. its driving me nuts !!!!
Any ideas .... anybody?...

bazzo asked
Guy Stewart (Victron Community Manager) commented ·

4 Answers

Error code: #67 - No BMS

Hi All

I get a "Error code: #67 - No BMS" when I reboot my router.

Running Cerbo GX and 3 MPPT's all with latest firmware.

The GX is connected via UTP cable and WiFi and the MPPT's reconnect almost immediately.

Doesn't happen at any other time.

See error log below.

Solar Charger - MPPT 150/35 [279] Automatic monitoring Error code: #67 - No BMS 2020-12-08 05:06:36 2s
Solar Charger - MPPT 150/60 [278] Automatic monitoring Error code: #67 - No BMS 2020-12-08 05:06:36 3s
Solar Charger - MPPT 100/20 [277] Automatic monitoring Error code: #67 - No BMS 2020-12-08 05:06:36 2s

Mark Maritz asked
Mark Maritz commented ·

3 Answers

How can I clear the Multiplus II VE Bus Error 8 / 11 report?

I'am Installing a Multiplus II 48 5000 with solar MPPT Charger.

And now I'm wondering about the new Error 8 / 11 Report page, because there ist an Error listet an I don't know how to delete this error.

The system is running fine and I want to get rid of this error. What also confuses me is that the error main page shows no VE Bus errors at all. And this is where I need more information: Does last VE Bus error report mean the last error 8 or 11 is stored in this list and just stays there for ever?

to exclude any futher wiring mistakes I disconected all AC-Out wires inside the Multiplus.

Only AC-In is connectet and I checked the wires serval times.

As in many european Countries the N and PE on the AC-In are at Ground Potential, but this should not be a problem. I have a standart european TN-C-S Power Grid.

With this question I just want to make sure I'm not chasing any errors witch I solved long time ago.

Hope you can help me

Regards Felix



felix-vt asked
felix-vt commented ·

1 Answer

VE.Bus Error: VE.Bus Error 10: System time synchronisation problem occurred

Today my EasySolar-II GX display froze.

Pressing the button next to it did not result in any change.

I had to turn it off and on to reset.

In Alarm LOG on VRM I found:


Did anyone knows what happened?

Where is this Error #10 coming from?


Found this on Victron site

Error 10 - System time synchronization problem

This typically happens during a system restart, and is then not a real error; no need to investigate.

I am happy that there is "no need to investigate", but I would like to investigate why may EasySolar-II GX display froze and I had to restart it.

Probably this error #10 was a result of that restart.

marekp asked
marekp edited ·

1 Answer

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