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Self-diagnosis function Fault diagnosis and Trouble shooting guide Error Display No. 01 02 06 Error Item Air temperature sensor of the indoor unit Inlet pipe temperature sensor of the indoor unit Meaning Major Error Occurrence Cause Short or open of indoor unit sensor • Poor sensor connection • Short or open of sensor • Defective indoor PCB Outlet pipe temperature sensor of the indoor unit Failure Checking Method Check connection status between PCB and sensor No Is connection status of the sensor normal? Reconnect the sensor at accurate position Yes Pull the sensor out and then measure sensor resistance No Is sensor resistance normal? Yes Replace the sensor * See the Temperature Resistance Table Check the indoor unit PCB 262 Trouble Shooting Guide
