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Before you do all these changes maybe just remove all load from the unit, start it up on battery only and do a reset. If you still having issues: When the inverter is restarted, press button UP+DOWN buttons together and input password 305 to reset the inverter parameters. After you input the...

You cannot update 040/041 on these units, not the same hardware, the update was from 067 01 104 / 068 01 104

Regarding the WiFi and the two different solutions you have tried, is it not maybe the Internet that's a problem out in the sticks?

I will send them a whatsapp and see if they can send the new firmware for the new comm boards

Thanks for the reply, also it seems only Ver 3.0.0.0 has the remote upgrade via the internet , and the older 1.7.6.7 do not have the same hardware, checking advantages with the factory they say "same same"just the online upgrade. Thanks for your reply

If the firmware in the picture above is what you had, you need to update with this firmware.

Ok good one, now stay away from any other firmware, Glad to know the fans are running normally now ;)

After 24 months and one mppt board fail but all the others are fine, replaced the mppt, and working fine, it was a capacitor that went dead short have replaced the cap, and it's now a spare part.

Is Triple Solar in the UK? They should return it to whoever brought it into the country for testing and then that company will take it up with Plyontech, Not sure but if you are in the UK, ask them who did they get the battery from? Segen Solar could be one of the importers.But Triple Solar...

Oh well thats great, now make sure you leave it alone ;)

Well its working fine I would rather chase the supplier of the unit to maybe exchange it, what country did you buy it in? But if you still think the firmware is going to do anything, just remember the 230v from the Grid and the output to the load must be isolated and the panels turned off, the...

Also seems they have a later ver than the F4 but will display as E2, from what I got out of them, its the same except for a small change on the 3.5kw unit

Well, where do we start here? if it's not the inverter where to next, maybe a bypass diode on one or more of the solar panels? It may also be an issue with the MPPT Board or even just the 270uf 500v capacitor on the MPPT Board, I had one with similar issues until that Capacitor when dead short.

What I would like to know is what is the problem between Growatt and Pylontech? And what has Growatt had to say? I would like to see what statement Growatt has put out re the Pylontech, Reason for asking Is I have the same Inverter and the US3000C, running well for 18 months and then the Battery...

Well in that case we can leave this topic until next June :) that's if the UK and Europe are still on the map.

Well at the end of the day you will kill it if you expect it to output that much, after all, it's a 5kW unit. Growatt is busy with 6kW Units right now not sure of the operation or specs but did get a sneak peek at the unit, it looks like all the other Growatt units and are not the same casing...

https://diysolarforum.com/attachments/isp-tool-v4-30-firmware-fans-test-rar.131091/ The one I posted above will sort out the fans running like crazy

I have not yet tried the 22amp option, have seen reports from others that it does, but that I have not personally seen. Looking at the components on the MPPT board should not be a problem.

That is a first for me 67.01 I thought you were saying you have 40.06 but there is now a 40.07 , have never seen that on any SPF5000ES ?

Hi Jim, the firmware you running is pretty current maybe 12 months old max, The upgrade is simple, and have not had any horror stories from the oldest firmware to the latest, they have all the info int the zip file , here is the link to that latest with all the info and the Tool called ISP to do...

I do have it somewhere but not on this pc, can have a look in the morning, but here is the latest if you want to give it a bash, and do the factory reset after you done

Pretty much ;)

I would think they would both fix your problem, I have used the F4 on a friend's machine to solve the problem as the 067.03 was not around at the time, I have another mate with fans running high speed and will go sort his machine out in a week or so But will use the latest 067.03 as I'm told it...

Did you change to 040.05 yet?

Ok would be nice to see if things improve, but looking at the other post, comparing the new vs old MCU if the panels are all getting the same amount of sun, the newer units do better?? No is the answer to that, just depends on the loads, need to have equal loads on all the inverters to compare ,

The firmware is good for a 230v unit, why do you not let the unit switch to the grid before the cut-off point? In menu 12 im not sure what your setup is but check that out, unless you have no grid :(

To me your setup it doing very well mate.

What is your story with the product?

Just found this on another forum, so the firmware does exist, but maybe this is a whole new ball game with these units. One SPF has 40.01/41.01 and works, the second has 67.01/68.01 and cannot be read. https://solaranzeige.de/phpBB3/viewtopic.php?t=2524&start=20