I've reviewed many of the existing threads with regards to the "No Flow" indicator. I have successfully used the reset button on the daughter board in the past, but today it's not working. The green light on the daughter board is flashing. It it supposed to be solid green?

I have removed and cleaned the sensor (it wasn't dirty). Temp and Salinity sensors are working property.

I have power cycled the system.

There are no error codes displayed, just "No Flow".

The sensor was replaced under warranty about 1 year ago. The number on the bottom of the current Zodiac flow sensor is H0283600B.