On my Victron AGM which I charged on absorption at 14.4V I used the following settings.
Charged voltage 14.2V, 0.2V below absorption
Charge efficiency 98%
Peukert coefficient 1.12
Tail current 1%
Detection time 3 or 5mins (can’t recall)
Discharge Floor 50%
Battery SOC on reset - Keep SOC
Anything else default. If ot not working is your wiring correct, check the other FAQ.