Intex Inaccurate Temperature Reading

Display shows temperature that is clearly incorrect compared to actual water

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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.

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Possible Causes

Mispositioned temperature sensor, Sensor drift or failure, PCB calibration issue, Hot/cold spots due to poor circulation

How to Fix / Troubleshooting

Safety first: Verify actual water temperature with a separate thermometer before using the spa.

  • 1. Compare readings:
    • Use a reliable spa thermometer to measure water temperature.
  • 2. Improve circulation:
    • Run filtration for at least 30 minutes and stir water to even out temperature.
  • 3. Power reset:
    • Unplug for 10 minutes, reconnect, and recheck reading.
  • If discrepancy remains large (>3–4°C): The temperature sensor or PCB may be faulty; replacement of the sensor or heater pump unit is recommended.
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Repair Difficulty

Hard 4/5

Required Part

Water Temperature Sensor (NTC Probe)
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