give it a shot man, at the very least you'll have to return it. I emailed tech support with my prob and they couldn't figure it out, they've been making that very unit with no changes for 9 years! I'm thinking it may have been turbulence in the water that made it glitch but dunno for sure, I was also using it with the switches upside down really but that shouldn't affect it, I even told tech support that and they didn't have an issue with it but still couldn't figure out why it glitched, I might add it was the second unit I tried with the same outcome. more than likely the basement watchdog will work,its a lot cheaper and it has two float switches for failsafe.