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3. No Flow LED flashing or ON
‘No Flow’ LED will flash for up to 60 seconds on start-up (when continuity through the switch is being detected).
‘No Flow’ LED will be ON if there is a problem with flow detection (when continuity through the switch is not being detected).
If the ‘No Flow’ LED is flashing, make sure pump is primed and an adequate amount of water is
passing through the flow switch element for at least 60 seconds (the required flow rate is 11 gpm). If
after 60 seconds the LED does not go out proceed to step 3B.
If the ‘No Flow’ LED is ON make sure flow switch is plugged into the bottom of the control box and the
wire is not damaged. If the wire or connector is damaged replace the switch, if not proceed to step 3B.
Step 3A
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