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KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Fri Dec 05, 2025 10:18 am
by Will
Release notes -
Resolves an issue with low-voltage PV production that some users have reported
Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Fri Dec 05, 2025 2:44 pm
by Fido55
Hi Will,
I'm still seeing the PV production issue, it now appears that no production is being logged below 250W. Have you seen any improvement at all?
Neil
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Sat Dec 06, 2025 9:36 am
by Will
I also seem to still only see proper generation from 200w
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Tue Dec 16, 2025 9:40 pm
by suti
"Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level"
a number of us in Australia are still reporting this issue.
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Sun Dec 21, 2025 1:21 pm
by retsplines
I'm on 1.55 Master and 1.58 ARM now and I'm seeing PV production down in the ~140W range in heavy cloud cover (70-80W on each of two strings). Perhaps it's resolved in this release instead?
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Mon Dec 22, 2025 6:35 pm
by damo2929
Will wrote: ↑Fri Dec 05, 2025 10:18 am
Release notes -
Resolves an issue with low-voltage PV production that some users have reported
Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level
@will
Hi will I can report that the self use doesn't work after a firmware upgrade.
I have upgraded but the fdsoc is hit and my inverter goes to grid.
Is there an known issue with this firmware combination for kh10.5's
Manager 1.55
Slave 1.02
Manager 1.58
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Mon Jan 05, 2026 11:18 pm
by jammin
Will wrote: ↑Fri Dec 05, 2025 10:18 am
Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level
Can also confirm this does not seem to be fixed in 1.55 Master / 1.54 Manager.
Fox support in AU have told at least 1 person that this is a "feature" and is working as intended.
In case there is any doubt, nobody wants it to work this way. Stopping all battery consumption is what the "Min SOC on grid" option in the schedule is for. The end result is that after force discharge you start consuming from the grid at what is likely the most expensive time of the day (otherwise you wouldn't be force discharging!).
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Tue Jan 06, 2026 5:19 am
by KenYHL
jammin wrote: ↑Mon Jan 05, 2026 11:18 pm
Will wrote: ↑Fri Dec 05, 2025 10:18 am
Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level
Can also confirm this does not seem to be fixed in 1.55 Master / 1.54 Manager.
Fox support in AU have told at least 1 person that this is a "feature" and is working as intended.
In case there is any doubt, nobody wants it to work this way. Stopping all battery consumption is what the "Min SOC on grid" option in the schedule is for. The end result is that after force discharge you start consuming from the grid at what is likely the most expensive time of the day (otherwise you wouldn't be force discharging!).
I can confirm the force discharge hasn't been fixed in 1.58 Master / 1.58 Manager
I agree with everything Jammin said. This is a bug that needs to be fixed
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Tue Jan 06, 2026 10:57 am
by handsomefox
Same problem after a Firmware update from 1.52 - 1.55
Re: KH Series Master 1.55 and Manager 1.54 Firmware
Posted: Tue Jan 06, 2026 11:25 am
by handsomefox
damo2929 wrote: ↑Mon Dec 22, 2025 6:35 pm
Will wrote: ↑Fri Dec 05, 2025 10:18 am
Release notes -
Resolves an issue with low-voltage PV production that some users have reported
Resolves an issue with force discharge not kicking into self-use when reaching the FDSOC level
@will
Hi will I can report that the self use doesn't work after a firmware upgrade.
I have upgraded but the fdsoc is hit and my inverter goes to grid.
Is there an known issue with this firmware combination for kh10.5's
Manager 1.55
Slave 1.02
Manager 1.58
Same problem after a Firmware update from 1.52 - 1.55