Low coolant light is driving me nuts!!!Any cheap fixes??

[Blaster]

My low coolant light has recently started to turn on periodically and only after I take the sensor cap off and fiddle with the male and female end of the sensors and let it sit will it sometimes turn off. I was thinking maybe I could just unplug the sensor, but would this have any ill effects?? The whole thing is that my cooolant is never low when the light goes on, and the car does not use coolant.I have heard of this problem with other cars, help!!