My indoor mechanical chime has started randomly humming. I have not had the white chime connector wired in as the chime doesn’t work at all with it connected. Just attempted it again and tried changing the settings in the app as previously mentioned but still not working. Has anyone else had this issue?

My chime wasn’t working, then I removed the white chime connector and it now works but the chime is slightly humming. I re connected the white disc back in and it stops working again. Absolute shambles