Jump to content

Axpert MKSII Firmware


NathanL
 Share

Recommended Posts

Hi Everyone

I have a Full Circle Solar FCS-MKS-II-5KW inverter that permanently tells me that the batteries are charging off the PV, the charging light flashes, and the fans run at full speed all the time. With no panels connected... Hmmmm... I even removed the MPPT. Still the same. I know it's the control board as I put another in and it works fine. I would like to reload the firmware on the original in case that is the problem. I tried the supplier. Useless... Lets not go there...

I've never done a reflash. I'll use the guide in the downloads section. Do I have to have the specific firmware for this inverter? Can I use any Axpert firmware? I see the Axpert King under the download section. Will this work? Or can someone point me to the correct firmware file please?

Link to comment
Share on other sites

3 hours ago, NathanL said:

Do I have to have the specific firmware for this inverter?

Definitely.

Quote

Can I use any Axpert firmware?

No!

Quote

I see the Axpert King under the download section. Will this work?

It probably won't let you try, but there definitely are some combinations where you are guaranteed to brick the inverter.

Quote

Or can someone point me to the correct firmware file please?

[ Edit: I don't believe that new firmware will fix this problem, but it might; earlier fixes seemed to be PV related. ]

I don't recall where I found this one; the date on the file is February 2021:
 

 

Edited by Coulomb
Link to comment
Share on other sites

  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...