Sunday, 13 June 2021

HeatPro HP21404T Runs With No Flow

I think I've posted this years ago but I still haven't resolved the issue so I'm determined to tackle it now:

tl;dr version - my HeatPro heater if set to heat still runs even if the pool pump is off and there is zero water flow

Full length version -
I had my pool installed in June 2011 and the HeatPro heater worked the following way: pool pump on > heater set to higher temperature > heater would run. When the pump would turn off for its normal routine, the heater could detect that...

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