Question about Fafco Deluxe Solar Panel Heating System 1 4' X 20' Panel

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I've a pentair solar control panel for my solar system for my pool. On one sunny and very warm day in California, the water in the pool remained cold after a few hours of circulation. Therefore, I was suspecting either the temperature sensor is not working or the control panel is malfunctioning. I eliminated the fact that some of the tubes in the solar panels on the roof might be blocked because the water temperature did not change at all... Meaning it didn't even warm up a few degrees after a 4 hours of operation... Anyway, I had a technician came out a few days ago and indicated both the sensor and the control panel are working properly. However, the same problem still existed. Can someone please share some insights here? Thanks!!

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There are many variables to this......

How big is your pool how big is your solar system.

Solar temps don't rise quickly ever, and definitely not when the temp is only 75 outside.

You need 80-90 degrees or more on the roof to see quicker results, if the water temp is currently at 70 and it's 75 degrees outside and 80 on the roof you will barely get any change.

You will also lose the heat at night due to lower temperatures.

Once it's hotter outside and warmer at night you get the gains and keep them.

Hope this helps

Posted on Mar 29, 2017

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SOURCE: had my roof replace so

The two pipes that connected the pump system to the solar heater were probably capped and they should have been connected to cause normal water flow. I hope this helps.

Posted on Aug 22, 2011

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