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EG4 6500 - stuck low PV voltage

What firmware are your inverters running?
I was having on off issues and upgraded to 79.70 due to the inverters turning off and on randomly.
After the firmware upgrade the on off issue is still random and have a new issues where the inverters turn on and off when the PV power starts to increase at sun rise and when the batteries reach 100%.

mountkay said:
I still haven’t updated my firmware, so I do have the same issue but it hasn’t really mattered with the nice weather and long days.


I have an older model (pre Nov 22) (black terminals) and that is the one that works fine. New model (post Nov 22) (grey terminals) is the one with the issues.


I havnt had any full cloudy days, but I would be happy if it fixed itself before 9am. It was mainly a problem for me in winter where it would be cloudy all day and would never fix itself.
Click to expand...
 
Mark_Novak_1963 said:
What firmware are your inverters running?
I was having on off issues and upgraded to 79.70 due to the inverters turning off and on randomly.
After the firmware upgrade the on off issue is still random and have a new issues where the inverters turn on and off when the PV power starts to increase at sun rise and when the batteries reach 100%.
Click to expand...
Can you send me your info it sounds like you are having a hardware problem software cant fix.
 
Markus_SignatureSolar said:
What problems did you have that it didn't fix or what problem are you having. So far everyone that was having issues are good to go now.
Click to expand...
@trig2 commented earlier in the thread that he updated to 79.70 and is still seeing the problem.
trig2 said:
Updated to 79.70 a couple days ago. Seems to be the same. Here's this morning. I have noticed clear mornings are the worst, clouds seem to trigger it to sweep so it doesn't get stuck for so long. It did fix itself this morning.
Click to expand...
trig2 said:
Flipped breakers this morning.
Click to expand...
 
I am here in Central Indiana. Lots of Cloudy days for me. At first I was pretty disappointment with what I was generating on cloudy days or early morning until I saw this post. Tried recycling it and after that power generation was more inline with what I was expecting.
 
trig2 said:
Nothing to complain about this morning, voltage jumped pretty quick.
Click to expand...
Was SS able to provide any help/insight into your issue?

I know mine looks similar to yours, but in my particular case when the voltage jumps is when the sun is cresting the trees, so it's working as it should.

1684419445195.png
 
I am talking now with Markus with Signature Solar. but for all your information or anyone experiencing the same issues I'' update this. Same thing today, even if it is sunny. Checked the system at 10 AM. This time instead of looking at Watts, I looked at voltage. All 4 inverters were hovering at 99 to 100 volts. Switched all my PV Arrays off, then back on, and then they all went up to 300s in voltage. All 4 inverters are exact same versions. U1 = 79/70, U2 = 61/12, and U3 = 00/00.
 
I wanted to give an update. They had me try to reflash the firmware and after doing this it appears to have fixed the issue. Don't know why the first time didn't make it work but appears to work now. Waiting for a cloudy day to see how it does before I say it is fully fixed, but it is looking good so far.
 
mbrolin211 said:
I wanted to give an update. They had me try to reflash the firmware and after doing this it appears to have fixed the issue. Don't know why the first time didn't make it work but appears to work now. Waiting for a cloudy day to see how it does before I say it is fully fixed, but it is looking good so far.
Click to expand...
That's great news! It's interesting, I've heard of a few cases where it seems like the firmware didn't update completely. Not really sure what's happening there, but glad to hear at least for the time being things seem to be resolved.

Now we just have to get @mountkay to update his to see if his is fixed too... ?
 
Mark_Novak_1963 said:
What firmware are your inverters running?
I was having on off issues and upgraded to 79.70 due to the inverters turning off and on randomly.
After the firmware upgrade the on off issue is still random and have a new issues where the inverters turn on and off when the PV power starts to increase at sun rise and when the batteries reach 100%.
Click to expand...
My two inverters are now doing the same thing, did you find a solution? "
where the inverters turn on and off when the PV power starts to increase at sun rise and when the batteries reach 100%."
Click to expand...
 
I also see 70 volts on pv 2 input on just one inverter. pv2 is not connected to either inverter.
 
Can you keep us updated, please?. Do we know what is different in the replacement inverters that are being sent out, if anything?. They seem to work out.
 
bones1 said:
Can you keep us updated, please?. Do we know what is different in the replacement inverters that are being sent out, if anything?. They seem to work out.
Click to expand...
If they come manufacture date of 10/2022, there might be problems.

I installed replacements yesterday, I have a thread showing what I found. The replacement inverters are worse than what I had before. I'm not the only member who received replacements lately and had problems. One member lost his TV after installing the 10/2022 replacements.
 
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