Culligan water softener model 01023115 How can I tell if my water softener is actually working and just needs to be

Customer: Culligan water softener model 01023115How can I tell if my water softener is actually working and just needs to be calibrated, or if it’s not functional at all?I moved into this house 3 years ago and it was already here and installed. The previous owner said it was “oversized” and didn’t use much salt. Well a year later I hadn’t needed to add any salt. I also have lived in a home with a functional water softener and I know what the feel of water on my skin and hair feels like, and this water softener didn’t give me that feeling at all, plus I was still dealing with hard water spots on my shower doors etc. I tried to adjust the settings to have it regenerate more often but I’m not sure if I did it correctly.I ended up just unplugging it because I didn’t want to deal with it. But I’d like to try to get it set up and working properly.