Error E4

[wBrhy2]

I have two devices, a mini split and a central unit.

For the last few weeks (since my update to HA 2024), every day during the middle of the night, my central unit goes into error mode E4 (error on the Mitsubishi interface). When I removed the esp32 module, the error stops showing up. Has anyone else had this? The minisplit doesn't seem to have the issue though (but hard to tell because the interface is different).

I've tried redoing my entire automation for my HVAC (I deleted my old ones) in case it was some sort of lingering obsolete code or something.

I'm sorry for the lack of details, I'm still at the troubleshooting / narrowing down the source stage.

Thanks in advance