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Panasonic CU-XE12PKUA manual Self-diagnosisMethod, 15.4.1H11 Indoor/Outdoor Abnormal Communication

Models: CU-XE12PKUA CU-XE9PKUA CS-XE9PKUA CS-XE12PKUA

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15.4 Self-diagnosis Method

15.4.1H11 (Indoor/Outdoor Abnormal Communication)

Malfunction Decision Conditions

During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal.

Malfunction Caused

Faulty indoor unit PCB.

Faulty outdoor unit PCB.

Indoor unit-outdoor unit signal transmission error due to wiring error.

Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units.

Troubleshooting

Page 55

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Panasonic CU-XE12PKUA manual Self-diagnosisMethod, 15.4.1H11 Indoor/Outdoor Abnormal Communication, Malfunction Caused

Contents

CS-XE9PKUA Air ConditionerIndoor Unit Outdoor UnitLocation of Controls and Components TABLE OF CONTENTS16. Disassembly and Assembly Instructions 18. Exploded View and Replacement Parts1. Safety Precautions 21.After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire CS-XE9PKUA 2. SpecificationsModel IndoorType Indoor ModelCS-XE9PKUA CU-XE9PKUA CS-XE12PKUA Indoor Model OutdoorCU-XE12PKUA Material Pipe Diameter Liquid / Gas šServiceability Improvement 3.FeaturesšLong Installation Piping šEasy to use remote control šQuality Improvement4. Location of Controls and Components 4.1Indoor Unit 4.2Outdoor Unit 4.3Remote Control5.1Indoor Unit 5. Dimensions5.2Outdoor Unit 6. Refrigeration Cycle Diagram 7. Block Diagram 8.1Indoor Unit 8. Wiring Connection Diagram8.2Outdoor Unit 9.1Indoor Unit 9. Electronic Circuit Diagram9.2Outdoor Unit 10.1.1Main Printed Circuit Board 10.1.2Indicator Printed Circuit Board10. Printed Circuit Board 10.1 Indoor Unit10.1.4Comparator Printed Circuit Board 10.1.3Receiver Printed Circuit Board10.1.5Human Activity Sensor Printed Circuit Board 10.2.1Main Printed Circuit Board 10.2 Outdoor Unit11.1.1Indoor Unit 11. Installation Instruction11.1.3Indoor/Outdoor Unit Installation Diagram 11.1 Select the Best Location11.2 Indoor Unit 11.2.2.3For the embedded piping 11.2.2Indoor Unit Installation11.2.2.1For the right rear piping 11.2.2.2For the right bottom pipingPage 11.2.3Connect the Cable to the Indoor Unit 11.2.3.1Wire Stripping and Connecting Requirement11.3 Outdoor Unit 11.3.1Install the Outdoor Unit11.3.2.1Connecting the Piping to Indoor 11.3.2.2Connecting the Piping to Outdoor11.3.4Connect the Cable to the Outdoor Unit 11.3.3Evacuation of the Equipment11.3.5.1Cutting and flaring the piping 11.3.5Piping Insulation12.1.2Cooling Operation 12.1.1Internal Setting Temperature12. Operation Control 12.1 Basic Function12.2.1Basic Rotation Speed rpm 12.2 Indoor Fan Motor Operation12.1.5Automatic Operation 12.1.6Fan OperationB. Feedback control 12.3 Outdoor Fan Motor Operation12.4.1Vertical Airflow 12.4 Airflow Direction12.4.2Horizontal Airflow 12.6 Quiet Operation Heating12.8.2OFF Timer Control 12.7 Powerful Mode Operation12.8 Timer Control 12.8.1ON Timer ControlDisclaimer 12.12 AUTO COMFORT and ECONAVI Operation12.12.1 Human Activity Sensor 12.12.1.1 Signal Detection12.12.1.4 Human Activity Level Judgment 12.12.1.8 Setting Temperature and Fan Speed Shift12.12.1.2 Information Log 12.12.1.3 Human Position Analysis12.12.1.9 Rhythmic Temperature Wave Operation 12.12.1.11 Human Activity Sensor Abnormality 12.12.1.10 ECONAVI and AUTO COMFORT Demo Mode12.12.1.12 Human Activity Sensor Check Mode 13.1 Protection Control For All Operations 13.1.1Restart Control Time Delay Safety Control13.1.3IPM Power transistor Prevention Control 13. Protection Control13.1.6Low Frequency Protection Control 13.1.4Compressor Overheating Prevention Control13.1.7Low Frequency Protection Control 13.2.4Freeze Prevention Control 13.2.1Outdoor Air Temperature Control13.2.2Cooling Overload Control 13.2.3Freeze Prevention Control13.2.6Odor Cut Control 13.3.1Intake Air Temperature Control13.3.2Outdoor Air Temperature Control 13.3 Protection Control For Heating Operation14.1 Auto OFF/ON Button 14. Servicing Mode14.2.4TIMER 14.2 Remote Control Button14.2.2RESET RC 14.2.3RESET AC15.1 Refrigeration Cycle System 15. Troubleshooting GuideCondition of the 15.2.2To Make a Diagnosis 15.2 Breakdown Self Diagnosis FunctionAbnormality 15.3 Error Codes TableProblem DiagnosisIndoor high pressure Malfunction Decision Conditions Troubleshooting15.4 Self-diagnosisMethod 15.4.1H11 Indoor/Outdoor Abnormal CommunicationMalfunction Caused 15.4.2H12 Indoor/Outdoor Capacity Rank MismatchedTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Caused 15.4.5H16 Outdoor Current TransformerTroubleshooting Malfunction Decision ConditionsšOperation stops due to Hall IC malfunction TroubleshootingMalfunction Decision Conditions Malfunction CausedMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšWrong models interconnected TroubleshootingMalfunction Decision Conditions Malfunction CausedTroubleshooting 15.4.13 H36 Outdoor Gas Pipe Sensor AbnormalityšFaulty connector connection šFaulty sensor šFaulty PCBMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšOperation stops due to Hall IC malfunction TroubleshootingMalfunction Decision Conditions Malfunction CausedšIndoor heat exchanger thermistor TroubleshootingMalfunction Decision Conditions Malfunction CausedMalfunction Decision Conditions TroubleshootingMalfunction Caused Malfunction Caused 15.4.18 F11 4-wayValve Switching FailureTroubleshooting Malfunction Decision ConditionsMalfunction Caused RemarkTroubleshooting Malfunction Decision ConditionsMalfunction Caused 15.4.20 F90 Power Factor Correction ProtectionTroubleshooting Malfunction Decision ConditionsMalfunction Caused 15.4.21 F91 Refrigeration Cycle AbnormalityTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions 15.4.22 F93 Compressor Rotation FailurešFaulty Outdoor PCB šFaulty compressor TroubleshootingMalfunction Caused šDuring operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistorTroubleshooting Malfunction Decision ConditionsMulti Models only 15.4.24 F96 IPM OverheatingTroubleshooting Malfunction Decision ConditionsTroubleshooting 15.4.25 F97 Compressor OverheatingšFaulty compressor tank temperature sensor šFaulty outdoor unit PCB šFaulty compressorMalfunction Decision Conditions 15.4.26 F98 Input Over Current DetectionšExcessive refrigerant šFaulty outdoor unit PCB TroubleshootingMalfunction Caused 15.4.27 F99 DC Peak DetectionTroubleshooting Malfunction Decision Conditions16.1.1To remove front grille 16. Disassembly and Assembly Instructions16.1.2To remove electronic controller Figure 16.1.3To remove discharge grilleFigure 16.1.4To remove control boardFigure Figure Figure Figure 1 Remove the 4 screws of the Top Panel 17.1 Operation Characteristics 17. Technical Data17.1.1CS-XE9PKUA CU-XE9PKUA Remote condition: High fan speed Comp. Hz: Fc šPiping Length CharacteristicRemote condition: High fan speed Comp. Hz: Fh šHeating CharacteristicRemote condition High fan speed Comp. Hz Fh šPiping Length CharacteristicCondition Indoor temperature: 68F 20C DBT Outdoor temperature 47F 8C DBT, 43F 6C WBTšCooling Characteristic 17.1.2CS-XE12PKUA CU-XE12PKUARemote condition: High fan speed Comp. Hz: Fc Remote condition: High fan speed Comp. Hz: Fc šPiping Length CharacteristicRemote condition High fan speed Comp. Hz Fh šHeating CharacteristicRemote condition: High fan speed Comp. Hz: Fh šPiping Length CharacteristicCondition Indoor temperature: 68F 20C DBT Outdoor temperature: 47F 8C DBT, 43F 6C WBTšCU-XE9PKUA 17.2 Sensible Capacity ChartšCU-XE12PKUA 18.1 Indoor Unit 18. Exploded View and Replacement Parts List18.1.1CS-XE9PKUA CS-XE12PKUA CS-XE9PKUA SAFETYREF. NO PART NAME & DESCRIPTIONšAll parts are supplied from PAPAMY, Malaysia Vendor Code: 18.2 Outdoor Unit CU-XE12PKUA SAFETY REF. NOPART NAME & DESCRIPTION CU-XE9PKUAPrinted in Malaysia FY0513-0