Hayward Prologic - calibrating the solar temperature sensor?

[timsen]

My solar temperature sensor is showing incorrect reading, about 4°F too low. I already replaced it and the problem is still the same still the same.

Is there a way to calibrate the temperature on the Hayward Prologic?

Thanks,
Tim

 

[ajw22]

I don't think so.

Did it ever read properly?

4 degrees too low is about 700 ohms of added resistance. Check all the wire connections and splices between the temperature sensor and the panel. You have a bad connection or corrosion that has added resistance to the circuit.

Temperature Sensors - Further Reading

www.troublefreepool.com