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Good Day, I have a MultiPlus-II 48/3000/35-32 230V SKU: PMP482305000, operating for about a year on ESS. We have had load shedding a bit in South Africa, and recently we had extended power outages in addition to load shedding. For the past few days, a grid relay fault has been appearing shutting down the unit. I double checked the wiring, especially the neutral, and all ok.
I had to bypass the unit.
Please may I have the grid code password to disable the grid code relay.
Hi
Victron won't release grid codes over forums etc, you have to go to your supplier dealer to get this. Have you updated the mulitplus to the latest firmware versions?
As there are some updates to this for grid related issues.
Regards
Rob D
NZ
Hi @Moodlyd,
Please go step by step through the troubleshooting steps for the relay error.
I presume that it is error 11 you are seeing?
Which step was the reported failure in the VE.Bus Error 11 report menu of the GX device?
If you have confirmed with a multimeter that the neutral wiring is correct (ie 240V between Active and Earth, 240V between Active and Neutral, and 0V between Neutral and Earth).
It would be interesting, but potentially unsafe (so do not try it) to reverse the AC Active in and Neutral wiring at the unit and seeing if the same error 8 persisted.
I presume that disconnecting/isolating the AC wiring completely means there is no fault, but the system cannot perform either?
There have been reports of issues with neutrals disconnecting at the transmission side in South Africa on this community - https://community.victronenergy.com/questions/25355/common-neutral-in-domestic-situation.html
Once you are certain that the wiring is not at fault - you will need to contact your dealer for further testing of the unit and a remedy.
