Coolant level light won't turn off

[mistergoodpeppe]

Ive had the coolant level light on for a while now. I initially did have a low coolant level when the light came on first. There is a small leak somewhere without any smoke or steam. The light didn't go away after refilling the reservoir. I topped off the reservoir, filled up the windshield washer reservoir, and replaced the coolant level sensor. The light is still on. Does it indicate anything besides exactly the coolant level? Possibly that the radiator fan is broken? It seems to turn on only sometimes, as my car nearly overheated.

Thanks for the help!