Dutton system (flow sensor)

[Baz]

I installed a complete "Dutton warning system" last summer. So far I'm quite pleased with it - the kit is well thought out. However, I had a problem with the flow sensor. It never worked. Always making the system buzz, although I had plenty of water coming out of the boat. I had a good filter between the seacock and the sensor. I washed it and checked for faults and debris, to no avail. After removing the sensor, I used a meter to see if there was some sort of continuity change between the yellow and black wires when I triggered the sensor manually: nothing, no change on either position. As you can see from the photos, nothing seems broken. Any suggestions? I'm FWC and the sensor was used on the raw water circuit.

[joe_db]

Get a new sensor

[hanleyclifford]

It might be useful to study your raw water circuit to see if any restrictions are causing a "pulsing" or "batching" upstream of the sensor.