Most recent posts on this issue are about three years old, so since the system suggests I start a new one... here I am.
So, same old story: firing up the system for spring, and the Lite2 gives me the FL 0, which is an error in the safety circuit. I found one old post that suggests bypassing the "three" devices in line... the troubleshooting guide shows four: pressure switch, two limit switches, and a fusible link.
I've found the pressure switch and fusible link behind the front panel... but where are the limit switches??