- Joined
- Aug 13, 2019
- Messages
- 60
- Reaction score
- 48
Hello Everyone! I have a Tunze 5017 ATO and I think the optical sensor is no longer functioning. When power cycling the device, the pump runs and comes on, the lights flash, and then it says the water level is fine. I can move the sensor and it never reads that it's not in the water. The pump does work when power cycling, and the float switch works if you move it up to simulate a run away fill, but the system does not come on when the water is "low". Any suggestions? I looked for a replacement sensor, but it doesn't look like they sell them. The sensor is clean or any build up or gunk as well. I haven't soaked it in vinegar yet, but I am not sure what that would do to help it unless there is something I can't see that is affecting the sensor.