FoxESS Community - Owners & Installers Forum

System was recently installed and have had no problems to date. Recently I upgraded the Master firmware for the inverter (K10) from 1.58 to 1.60. Since then the PV output only seems to match the household draw in very sunny conditions in Self-use mode. However, when you change modes to Feed-In Priority, the PV production goes up to what you would expect for the prevalent solar conditions.
I have hard reset the whole sytem but this problem does not want to go away.
Is the firmware release a dud? If so, what can be done about it? Obviously there is no option to return to a legacy firmware version which is extrememly frustrating.
Any ideas?

Master 1.60
Slave 1.02
Manager 1.58

Have you done a full power down and up again on your system, including the battery?
The other thing to check is on the Inverter itself, the Battery power limits are not reset down to a low value.

Let us know if you do not know how to check.

I have done a full power down and up of the system with no apparent change.
Not quite sure how to check the battery power limits so any advice would be appreciated….

banksy20 wrote: ↑Mon Mar 30, 2026 11:50 am I have done a full power down and up of the system with no apparent change.
Not quite sure how to check the battery power limits so any advice would be appreciated….

I just flicked through the various settings menus on my inverter it helped the PIN code was set to 0000

banksy20 wrote: ↑Mon Mar 30, 2026 11:50 am I have done a full power down and up of the system with no apparent change.

A video by Will to follow and check.



If you are running with a VPP company for control of your system, they could have adjusted settings, or the change of firmware can reset things.