[Bug] SF2400AC+ sets mode to AC-output without PV surplus, although Zendure Manager Mode = Smart Charging

[BioAnthrax]

Home Assistant Version

2026.4.4

Zendure Integration Version

v1.3.1

Describe the bug

Using a Solarflow 2400 AC+
To avoid frequent switching of the relay from AC-Input to AC-output, i configured the Zendure Manager on daytime to Mode 'smart charge' and nighttime 'smart discharge'.
If there is no PV surplus on daytime, the SF2400AC+ switches to AC-output instead being still on AC-input, although Zendure Manager Mode is set to 'smart charge'.
Therefore the relay does a lot of switches, which i wanted to prevent.

To Reproduce

1. Set Zendure Manager Mode to Smart Charge
2. Wait until there is no PV surplus (Add high load)
3. Check if in device SF2400AC+ the control 'select.solarflow_2400_ac_ac_mode' changes to = 'output'

Expected Behaviour

Mode of SF2400AC+ should be always AC-input, if 'smart charge' is active.

What device are you using?

SF2400 AC+

Log Extracts

See screenshot

Other Information

No response

[BioAnthrax]

Did a manual automation as workaround which works fine for me:
If( Solarflow2400AC+.Mode Changes from Input to Output )
And
ZHA.Mode = smart_charging
Then
Solarflow2400AC+.Mode = input

This prevents the relay from switching from input to output while ZHA is in Charging Mode

[github-actions]

'There hasn't been any activity on this issue recently. Is this issue still present?
Please make sure to update to the latest Home Assistant version and version of this integration to see if that solves the issue. Let us know if that works for you by adding a comment 👍.
This issue now has been marked as stale and will be closed if no further activity occurs. Thank you for your contributions.'

[BioAnthrax]

Still present today.
Seems the fix has been done (thanks!) , but not released yet.
Will give feedback after update is available.
Cheers

[BioAnthrax]

Has been fixed with version 1.4.0
Thanks!

[andye2]

I still have this issue. I have smart charging active. If there is not enough pv power the input value will be 0. And the zendure will switch from charging to discharging.

[BioAnthrax]

Can confirm this behavior.
Although ZHA Manager mode = smart charging and SF2400AC+ Mode remains in AC-Input mode,
But the ZHA mode (read only) and The battery status switches to idle or discharge, which causes the relay to switch.
Both ZHA Manager and Battery also should remain in charge mode imho, to prevent frequent switching of the internal relay.