So, when do you call a professional? Summary version: if your fiddling makes things worse, if you see error codes you can’t decode, if you’re using tools that look like they belong in a torture chamber, or if you’ve already broken the bypass valve. Also, if your regeneration cycle is louder than your vacuum cleaner.
Look, I love DIY as much as the next person. I once fixed a garbage disposal with a hex key and sheer will. But softener regeneration is a delicate ballet of electronics, water pressure, and salt. One wrong move and your Tuesday becomes a plumbing disaster. Save your back, your basement, and your relationship with your water heater. Call the expert.
Your softener will thank you. Maybe not audibly, but you’ll know.