[Bug] P2S Seconday Aux Fan Issues

[leon112370]

Home Assistant Version

2026.1.1

Bambu Lab Integration Version

v2.2.20-beta6

Describe the bug

Secondary Aux fan dose initially shows up and it accurately reports fan speed but when i send a command from HA to turn off it dose not turn it off on the printer. Also it remains showing offline in ha even though the fan is still on in printer. I'm not even sure if any of the commands work at all

To Reproduce

1. Turn off Secondary Aux Fan while its on from HA
2. Check printer to see if fan is indeed offline

Expected Behaviour

Fan should turn off/on when commands from HA are sent

What device are you using?

P2S

Diagnostic Output

config_entry-bambu_lab-01KGDZVZXH6V7CMF2V4Y5RZNJ6.json

Log Extracts

No response

Other Information

No response

[AdrianGarside]

To confirm - you are in developer lan mode? The diagnostics log suggests you are but there's been some inconsistency in the mqtt payload that drives the integration detecting that.

Does the fan update in HA if you change it on the printer? Is it only control of the fan from HA that's not working?

[leon112370]

Yes, I am in LAN mode with developer enabled.

[leon112370]

Does the fan update in HA if you change it on the printer? Is it only control of the fan from HA that's not working?

At first, secondary aux fan shows online and reports a speed in HA. When I send command to turn off from HA, fan goes from online to offline in HA. Then when I physically check printer, the fan is still online. When I come back to my computer, HA still shows the fan is offline even though its still actually online. I then tried to send a command in HA to turn back on (just to see if i can get it to report a speed again), nothing happens. Fan remains showing offline in HA no matter what commands I send.