Since I bought this cooktop 6 weeks ago there have been 3 instances where the cooktop starts beeping with error 22 out of the blue.  If I go turn the knobs on and off it stops. But it makes me nervous that there will be more issues in the future.  I loved my last Frigidaire cooktop but had to fix it 3 times due to error codes and ended up buying a new one.  I’m not crazy about having the knobs in the front but it functions fine aside from those issues.