water in fuel alarm

I got the wif light on a trip i just took. new tank full of fuel for trip. I drained the filter housing but didn't catch it to look at it. about 5 min later i got it again. drained and caught it. no water visible. it continued to come on for the trip. never found any water. drained often. could it be water i can't see? got fuel from where i always get it. what to do now? figured i would get new tank of fuel with a heavy dose of additive and see what happens. may get new sensor if prob continues.

new sensor.

is the sensor going bad a common problem? anyone have a part number?

Check out Sunrise Ford below in the vendor section; Part # ends with -9C264

thanks td

yeah i believe the sensor can get gummed up and give a false alarm