Samsung · Gen 6 Fault Code List.pdf Energy Lab
This error signifies a communication issue between the control kit and the outdoor unit, often related to initial setup or matching.
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Ensure the control kit and outdoor unit are correctly matched and paired.
Verify that the communication wiring between the control kit and outdoor unit is securely connected.
Power cycle the unit by turning off the power for 30 seconds and then turning it back on.
If the problem continues, refer to the installation manual for pairing procedures or contact a technician.