I have a ~10 y/o (predates my purchase of the house) built-in Sub Zero 700TC. A day or two ago it started clicking every few minutes and showed codes 24 and 50, both of which reference the compressor running too much. I cleaned the coil with no effect, and the clicking noise is atypical and loud - I had never heard it before and I generally notice things like this.
Visually, it's coming from what I think is the start capacitor(?):
Or is that a relay too? I don't understand why a capacitor would make noise (they generally don't).
Either way, before I call a tech I want to see if I can fix it myself. Can this be a source of the clicking / issue? Also - the refrigerant line was still hot to the touch, so I feel like it's working at least somewhat?