DiySolarReady
New Member
- Joined
- Nov 4, 2020
- Messages
- 8
Anyone here getting fault code 4( low voltage) on their growatt inverter, but the voltage isn’t actually low? My inverters keeps shutting down because of this, but my battery(Eg4) voltage isn’t actually low.Reset procedure is similar. Instead of holding the bms reset like Will showed in the video. With this growatt AXE c-1 you just press it once and then the battery powers off and you get one flash of a green light on the RUN/ALARM light.
I’m assuming this means the reset was successful.
Power on battery. All should be good.
Not in my case though.
I have some type of inconsistency here.
Sometimes it powers on and works for a little while.
Sometimes it doesn’t power on at all.
Battery is at %86 SOC according to the growatt inverter.
Last night I was attempting to charge the battery via AC input and the battery wouldn’t budge passed %86 SOC. Reading 42.1v on inverter.
I shut everything off and went to bed with no power. I’m used to it…at this point electricity is a luxury for me.
This morning I wake up and the first thing I do is power on the battery and I see all my blue SOC led lights illuminated …4 in total. Green led flashes momentarily And then stays solid green.
Okay this is when you can turn the inverter on!
I flick the switch and it powers on!
15 minutes later I get FAULT CODE 03
High battery voltage?!?!
Battery is now showing 53ish volts
Still %86 charge.
I powered everything down.
Now I’m going to go grab a coffee followed by yelling at a tree in the woods.
Any help would be appreciated.
I wish I could plug a cable in and monitor the cells and see what’s actually going on inside this battery but as of now I’m not sure if that’s possible. The manual doesn’t say anything about that. I wish it did