• Last Post 17 May 2020
stephen32 posted this 03 July 2019

HI just installed the Hayward HP21404T heat pump and found I have to run the variable speed motor at 3150 rpm or the heat shuts down and reads HP. Any idea why this is? 

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InyoRob posted this 03 July 2019

The heat pump is not receiving enough flow on the lower speeds. That is why it won't work unless it's at 3150 rpm. 

Sometimes the cause of this issue is a dirty filter. Try cleaning the filter and then run the pump on lower speeds to see if the heat pump will work.

stephen32 posted this 17 May 2020

I have question about pentair amerlite pool light replacement. My pool light outer ring measures 10.12 inches has the small screw tabs that hold gasket on. I need a replacemet light 500w @ 120v 50ft lead and also the mounting plate which is 12-3/16" with gasket. Can you help me?