My printer recently flooded because of a leveling issue and I was able to resolve that. Since then it still has not been able to active level, I've manually leveled it several times but each time I try to actively level it the printcores are pushed up as far as they can go and the leveling fails. I've lowered the bed as much as possible and it still does this. What mechanism is it supposed to trip to stop it and how can I fix it? I can print fine if I manually level it, but obviously that is not ideal.