I installed my FMM displaying flow of my 1" sensor 6 months ago. It was working fine and always displayed flow between 90 to 150 GPM.
Last week my main pump died and the FMM sent me an alarm since the sensor went down to 0. I replaced the DART but the Flow Sensor never recovered. Always displays 0.
I took it apart and cleaned it, thinking something got stuck in it. It was very clean. I even used my finger to move the wheel. It was turning fine...
I removed the FMM module and re-installed it. Nothing.
I moved the flow sensor from position 1 to position 4. Still nothing...
I don't have any other ideas. Can you please think of anything?
Is this a known problem?
Thank you in advance for all your suggestions.
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