i-see SENSOR Fault

What does 6-time blink mean?

This fault indicates poor contact in the i-see SENSOR wiring or an error during the loading of its corrected data. The i-see SENSOR is crucial for intelligent detection of room occupants and optimized airflow, so its malfunction can lead to reduced comfort and inefficient energy use. The unit may operate but without smart sensing capabilities.

• Loose or corroded connection at the i-see SENSOR's multi-pin connector (e.g., CN_ISEE) on the indoor P.C. board.
• Physical damage to the i-see SENSOR cable (e.g., pinched, cut, stretched) causing intermittent or open circuits.
• Electrostatic discharge (ESD) damaging the i-see SENSOR's internal electronics or its communication interface.
• Firmware incompatibility or data corruption during the initial loading of corrected data for the i-see SENSOR.
• Faulty i-see SENSOR module itself, preventing it from accurately detecting occupants or communicating its data.

Click steps to track your progress.

1. 1

   Power down the indoor unit by disconnecting the main power supply.

2. 2

   Locate the i-see SENSOR and its wiring harness. Carefully disconnect and reconnect the sensor's plug to the indoor P.C. board (e.g., CN_ISEE) to ensure proper seating.

3. 3

   Inspect the i-see SENSOR cable for any visible signs of damage (e.g., cuts, kinks, severe bends). Use a continuity tester to verify all wires in the cable are intact.

4. 4

   Clean the i-see SENSOR connector pins and the corresponding receptacle on the P.C. board using an approved electrical contact cleaner.

5. 5

   If the system allows, attempt to perform a recalibration or data reload procedure for the i-see SENSOR (refer to service manual for specific menu or button sequence).

6. 6

   If the fault persists after verifying connections and cable integrity, replace the i-see SENSOR module with a new, compatible unit.