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diy solar

Growatt issues.

Speeg43to1

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Jun 19, 2021
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I just can't get the hang of this, and it is really frustrating. We had everything working great one day. Nothing has changed, and it's flashing fault code 58.. Output too low?
Also ...
What we purchased and what we have hanging on our wall looks totally different.
This doesn't look like the growatt 3000 (which is what we bought)
When I look for troubleshooting help for what we thought we had, all of the videos show a different model.
 

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On My Growatt there is a Label on the right side which has the model number and specifications. I have the 3000TL LVM and it has the Small Roundish display in the Center of the Unit With the "Growatt" label at the top of the unit.
 
Heh..in my Growatt manual it shows Fault Code 58 as "Output Voltage is too low." (version 2 of the manual)
 
On My Growatt there is a Label on the right side which has the model number and specifications. I have the 3000TL LVM and it has the Small Roundish display in the Center of the Unit With the "Growatt" label at the top of the unit.
Okay. This is the one we ordered. But it looks like we got the
Off Grid Solar Inverter SPF 3000TL LVM-ES .
Not sure what the differences are.
 
Is that what it says in your manual? Not very reassuring if the code description is a question.
Yeah. I'm not near the house at the moment so I'm just relying on my feeble memory. I think what rjpear said was the correct wording. Lol
 
So. Now that I have figured out which model I have. How do I fix this fault 58 issue?
 
So. Now that I have figured out which model I have. How do I fix this fault 58 issue
What batteries and Soc do you have? What is their voltage when this code is thrown?
How much load do you have on the inverter when this happens?
Sorry for my ignorance. Like REAL ignorance. What is Soc?
Batteries are ampere time 48v. (x2)
We bought the 50$ SanTan snail trail 250w solar panels. 12 of those wired up 6 and 6 .
*We have tried wiring them 4 of 3 and 3 of 4*
It was showing 100% battery and I think 209-212 on the PV output.
This morning there was nothing on the inverter at all when the code was on.
(We ran off our generator last night) I went to turn everything on this AM and before I even plugged in our camper or flipped on the breaker, it was already showing the code.
I will be going home soon, and I can possibly upload more when I get there.
 
What is Soc?
State of charge, got it here.
It was showing 100% battery
Assuming 100Ah batteries, that is a pretty hefty battery bank. Unless there is reason to suspect the batteries, it does not seem likely they are the culprit.

It sounds odd that you are running your generator with this bank at 100%.
I went to turn everything on this AM and before I even plugged in our camper or flipped on the breaker, it was already showing the code.
You plug your camper into the Growatt? Flipped on a breaker?

I don't have any experience with Growatts or all in ones for that matter but this description of how you use it is baffling.
 
State of charge, got it here.

Assuming 100Ah batteries, that is a pretty hefty battery bank. Unless there is reason to suspect the batteries, it does not seem likely they are the culprit.

It sounds odd that you are running your generator with this bank at 100%.

You plug your camper into the Growatt? Flipped on a breaker?

I don't have any experience with Growatts or all in ones for that matter but this description of how you use it is ba
 
We have our predator, and solar stuff totally separate. Batteries were charged from yesterday's solar.
 
But that is my whole issue. It won't run our camper with the error code on. Even with batteries at 100%
 
Is there an issue with 48V systems with Solar Charging with not enought PV output to the system to charge? I havn'e dipped my toe into the Solar Panel aspect as of yet but I was concerned with the Minimum Panel Voltage/Output for the 48V system..
 
Is there an issue with 48V systems with Solar Charging with not enought PV output to the system to charge?
The array voltage needs to be at least 5V higher (in general) than your battery voltage. Your Growatt should list the input voltage range. The manual may even have an optimal voltage range for the MPPT algorithm.

But if your batteries are 100% charged (and verified with a digital meter?) i do not think that solar or battery is your issue.

Possibly a bad connection from the inverter to the battery? Did you measure the voltage where the battery wires go into the Growatt?
 
State of charge, got it here.

Assuming 100Ah batteries, that is a pretty hefty battery bank. Unless there is reason to suspect the batteries, it does not seem likely they are the culprit.

It sounds odd that you are running your generator with this bank at 100%.

You plug your camper into the Growatt? Flipped on a breaker?

I don't have any experience with Growatts or all in ones for that matter but this description of how you use it is baffliack home now

State of charge, got it here.

Assuming 100Ah batteries, that is a pretty hefty battery bank. Unless there is reason to suspect the batteries, it does not seem likely they are the culprit.

It sounds odd that you are running your generator with this bank at 100%.

You plug your camper into the Growatt? Flipped on a breaker?

I don't have any experience with Growatts or all in ones for that matter but this description of how you use it is baffling.
Back home now, and took some pictures.
 

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Back home now, and took some pictures.
Now to explain those photos. Our panels run from the roof to a combiner box, then into the growatt. The plug mounted on the side of our utility shed is for our camper which is connected to the breaker box which is attached to the growatt. The silver box is not connected to any of the solar stuff.. It's a separate thing for our wind turbines. Pretty sunny today, so I'm not sure why it isn't picking up on the growatt. I checked all connections, and wires this morning.
 
50V / 16 cells = 3.125V
This is about 10-20% charged.

I cannot tell what each of the Growatt screens is showing but pic 6 shows 197.3V (from solar array i presume) and battery voltage 50V.

What is the max input voltage of the Growatt? If its 200V, you may have damaged it by exceeding the input voltage.

Can you disconnect the batteries and measure their voltage? I'm confused as to what I am seeing but its looking like low battery but not sure why.
 
I really don't want to deal with Growatt's customer service. I hope we didn't mess something up. We took this leap because we got sick of being tied down with utilities every month and then the utility companies having the right of way onto our property, so we moved, and are totally off grid now, but we have been trying to move to solar for about a month now, and we can't seem to get it right. Blowing tons on fuel cost in the process which is totally defeating the purpose.
 
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