Installed a brand new MP2 and went to turn on for the first time with no signs of life. It’s a 24/5000 model and isn’t yet connected to any external management hardware or victron networking.
First I tried the inverter function. I measured 26.6v at the battery terminals but no indicator lights showed up on the inverter side.
Then I switched on 120v and the charger side lit up. however there was no current going to my batteries according to my smartshunt. I cycled the power switch and it went dead, I have been unable to get it to power up in any way again. At no point during this process did I see it show in the victron app on my phone nor my Bluetooth list. I have confirmed there is stil 120v at the inputs with my multimeter.
the batteries are currently powering an Orion XS w no issues and but the Orion and my smartshunt work fine in the app.
the big question here is that when I opened the unit in its original packaging for the first time, it was physically dented on the top corner. It did not seem serious and Given how long the special order took I decided to try it, probably a mistake.
Any thoughts on things I should try before initiating warranty? I have read the RMA form posted elsewhere on this forum and nothing in there helped.
It doesn’t have bluetooth. It would need a mk3 to appear on a device.
Have you been through the docs step by step?
It sounds like you missed something.
Did you pre-charge the system? The battery BMS may have gone into protect.
Suggest you follow the initial setup training and carefully follow the commissioning steps in the manual.
I read the online pdf manual cover to cover though I can’t say there were ”commissioning steps”. The manua also says it’s configured through the app so I assumed it had Bluetooth.
the batteries are not in protect mode and do not communicate with the inverter.
Right now the only connections are ac in and out, batteries and ground. My understanding is that it should work out if the box without configuration, is that not correct?. My system is not overly complex so factory settings should be fine.
Have you measured the voltage on the DC input of the multiplus, while AC is switched off? It sounds like you have no connection between batteries and MP. Maybe a fuse blew or some bad connection.
The MP works out of the box, but at the very least you should configure the charge parameters according to your battery
There are a lot of assumptions being made. Defaults will be fine for some, typically not lithium, setups.
Does sound like a battery is disconnected or blocked output.
There is full voltage in the battery terminals within the unit. I don’t mean the terminals on the batteries I mean the DC connection point on the MP2. Maybe I was unclear there. When I first set it up I made all connections with all incoming switches off.
First I switched on DC with no incoming AC. There was full voltage on the dc terminals and the unit did not respond.
then I powered up AC in, the charger side LEDs turned on but it did not actually send a current. I cycled the unit’s power switch and it never turned back on.
I agree it seems weird but I have confirmed the basics. Polarity and voltage all correct.
I have every intention of doing this. Before I do, I’m asking if there is anything more advanced I could check like internal fuses or something. From what I’ve read the phoenix units have them but I don’t think the MP2s do.
No internal fuses.
You can remove the cover and check nothing is loose inside.
If you have an alternative 24V DC power supply for bench testing that may help confirm an issue.
I have tried positions 1 and 2. No luck. I checked the bridge too but will double check that today.
I will also open the front cover and look for loose hardware. This is a very robust unit which is why a small dent on the top did not concern me. I too feel like it’s got to be something small I’ve overlooked but I keep coming back to the fact that it’s getting over 26v to the DC terminals and nothing happens.
I will also connect it to my cerbo today to see if there is any communication.
The only time I’ve had mine not turn on via the switch is when I’ve previously turned it off via software on the Cerbo/Remote Console. It shouldn’t ship from the factory in this state though.
Hopefully it’ll connect to the Cerbo and tell you something.
In case anyone is wondering why one connector is so critical to the system; That looks like the lead to the external switch which needs to be shorted if an external switch is not connected, so the unit was doing exactly what it was told to do. Once that connector is connected, the black loop wire that you can see on the green terminal block (you can see this in the marketing photos) is doing the shorting.
