Fairland Temperature Reading Offset / Calibration Error

Display shows normal operation but actual pool water temperature reading seems inaccurate.

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Water temperature sensor out of calibration, Sensor installed in poor location, Long sensor cable run picking up interference, Incorrect sensor type fitted

How to Fix / Troubleshooting

Safety: Turn off power and close valves before removing any sensors.

Steps:

Compare readings: Use a reliable pool thermometer to compare with the Fairland display.
Check sensor placement: Ensure the sensor is in a well-mixed water location, not in a dead spot or near a heater outlet.

If discrepancy is large (>2–3°C):

A technician should test the water temperature sensor resistance and replace it if out of spec, or adjust calibration if the controller supports it.

Repair Difficulty

Medium 3/5

Required Part

Water Temperature Sensor

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