SPT Sensor Calibration / Logic Error

Unit displays incorrect status (e.g., shows ICE FULL when making ice, or ADD WATER when full).

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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

Faulty water level sensor, Faulty ice full sensor, Crossed or damaged wiring harness, Control board input error

How to Fix / Troubleshooting

Safety first: Unplug the unit before working on sensors.

  • Clean sensors: Thoroughly clean both the water level and ice full sensors.
  • Inspect harness: Trace the wiring from sensors to the control board and ensure connectors are in the correct sockets and not damaged.
  • Test individually: Temporarily disconnect one sensor at a time (with power off) and see how the display responds when powered back on, to help isolate the faulty sensor.
  • Replace faulty sensor or board: Once identified, replace the defective sensor. If both test good, the control board may be misinterpreting signals and should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Water Level Sensor Assembly
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