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Quantity
1
Description
FSA NFSMLTroubleshooting | Functionality
Flow Sensor Assembly FSA NFSML. This sensor is crucial as it detects water flow, triggering the unit to activate. Unsure if your flow sensor is the culprit? Here's a quick check: If the unit's LED l...
Reviews
4.9
12 ratings
5
4
3
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1
It fit and worked on my ECO11 very well. Had a small leak from a crack in the body.
D
Derek · April 5, 2026
Did the job! We now have hot water again. Thank you for sending out the parts so quickly!
A
Anonymous · October 21, 2025
Fixed the problem
Comes disassembled without instructions so be sure to see how the old part is put together as a guide.