Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Malfunction Caused

Models: Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA

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16.4.23F95 (Cooling High Pressure Abnormality)

Malfunction Decision Conditions

During operation of cooling, when outdoor unit heat exchanger high temperature data (141.8°F) is detected by the outdoor pipe temperature sensor.

Malfunction Caused

Outdoor pipe temperature rise due to short circuit of hot discharge air flow.

Outdoor pipe temperature rise due to defective of outdoor fan motor.

Outdoor pipe temperature rise due to defective outdoor pipe temperature sensor.

Outdoor pipe temperature rise due to defective outdoor unit PCB.

Troubleshooting

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Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Malfunction Decision Conditions

Contents

Outdoor Unit TABLE OF CONTENTSIndoor Unit CS-E9NKUAW13. Operation Control For Multi Split 17. Disassembly and Assembly InstructionsExploded View and Replacement Parts Connection1. Safety Precautions 20.During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-inof air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc 2. Specification Type DRY BULB šEasy to use remote control šQuality Improvement 3. FeaturesšLong Installation Piping šServiceability Improvement4.1Indoor Unit 4.2Outdoor Unit 4.3Remote Control 4. Location of Controls and Components5. Dimensions 5.1Indoor Unit5.2Outdoor Unit 6. Refrigeration Cycle Diagram 7. Block Diagram 8. Wiring Connection Diagram 8.1Indoor Unit8.2Outdoor Unit 9. Electronic Circuit Diagram 9.1Indoor Unit9.2Outdoor Unit 10.1Indoor Unit 10. Printed Circuit Board10.1.1Main Printed Circuit Board 10.1.2Power Printed Circuit Board 10.1.3Indicator Printed Circuit Board10.2Outdoor Unit 10.2.1Main Printed Circuit Board11.1Select the Best Location 11. Installation Instruction11.1.3Indoor/Outdoor Unit Installation Diagram 11.1.1Indoor Unit11.2.1How to Fix Installation Plate 11.2Indoor Unit11.2.3.2For the right bottom piping 11.2.3Indoor Unit Installation11.2.3.1For the right rear piping 11.2.3.3For the embedded piping11.2.4Connect the Cable to the Indoor Unit 11.2.5Wiring Stripping and connecting requirement 11.2.5.1Cutting and flaring the piping11.3.2.2Connecting the piping to outdoor 11.3.1Install the Outdoor Unit11.3.2.1Connecting the piping to indoor 11.3Outdoor Unit11.3.2.4Gas Leak Checking 11.3.2.3Connecting the piping to outdoor multi11.3.3Evacuation of the equipment 11.3.3.1Connect the Cable to the Outdoor Unit 11.3.3.2Piping Insulation12.1Basic Function 12.1.1Internal Setting Temperature12. Operation Control 12.1.2Cooling Operation12.1.4.2Automatic Operation 12.2Indoor Fan Motor Operation12.2.1Basic Rotation Speed rpm 12.4Airflow Direction 12.3Outdoor Fan Motor Operation12.4.1Vertical Airflow 12.6Quiet Operation Heating 12.4.2Horizontal Airflow12.8.1ON Timer Control 12.7Powerful Mode Operation12.8Timer Control 12.8.2OFF Timer Control12.10Indication Panel 13.1Cooling operation 13.3.2Temperature Sampling Control13. Operation Control For Multi Split Connection 13.2Soft Dry Operation13.5Indoor Fan Motor Operation 13.6Powerful Mode Operation13.4Automatic Operation 13.7Auto restart control14.Protection Control 14.1.1Restart Control Time Delay Safety Control14.1.4IPM Power Transistor Prevention Control 14.1Protection Control For All Operations14.1.7Low Frequency Protection Control 14.2.1Outdoor Air Temperature Control14.1.5Compressor Overheating Prevention Control 14.1.8Low Frequency Protection Control14.2.3Freeze Prevention Control 14.2.6.1Intake Air Temperature Control14.2.2Cooling Overload Control 14.2.4Freeze Prevention Control14.2.6.5Cold Draught Prevention Control 14.2.6.2Outdoor Air Temperature Control14.2.6.3Overload Protection Control 14.2.6.6Deice Operation15. Servicing Mode 15.1Auto Off/On Button15.2.3RESET AC 15.2Remote Control Button15.2.2RESET RC 15.2.4TIMER16. Troubleshooting Guide 16.1Refrigeration Cycle SystemPage 16.2Breakdown Self Diagnosis Function 16.2.2To Make a Diagnosis16.3Error Code Table “” – Frequency measured and fan speed fixed 16.4.1H11 Indoor/Outdoor Abnormal Communication Troubleshooting16.4 Self-diagnosisMethod Malfunction Decision ConditionsMalfunction Decision Conditions 16.4.2H12 Indoor/Outdoor Capacity Rank MismatchedTroubleshooting Malfunction CausedTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsMalfunction Caused TroubleshootingMalfunction Decision Conditions šCT defective šOutdoor PCB defectiveMalfunction Caused TroubleshootingMalfunction Decision Conditions šOperation stops due to Hall IC malfunctionTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsMalfunction Caused TroubleshootingMalfunction Decision Conditions šWrong models interconnectedšFaulty PCB 16.4.13 H36 Outdoor Gas Pipe Sensor AbnormalityšFaulty connector connection šFaulty sensor TroubleshootingTroubleshooting šFaulty connector connection šFaulty sensoršFaulty PCB Malfunction Decision ConditionsMalfunction Caused TroubleshootingMalfunction Decision Conditions šOperation stops due to Hall IC malfunctionMalfunction Decision Conditions 16.4.16 H98 Indoor High Pressure ProtectionTroubleshooting Malfunction CausedMalfunction Caused TroubleshootingMalfunction Decision Conditions šClogged air filter of the indoor unitšFaulty indoor main PCB šFaulty connector connectionšFaulty indoor pipe temperature sensor TroubleshootingMalfunction Decision Conditions RemarkTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.20 F90 Power Factor Correction ProtectionTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.21F91 Refrigeration Cycle AbnormalityTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.22F93 Compressor Rotation FailureTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.23F95 Cooling High Pressure AbnormalityTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.24F96 IPM OverheatingTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.25F97 Compressor OverheatingTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.26F98 Input Over Current DetectionTroubleshooting Malfunction CausedMalfunction Decision Conditions 16.4.27F99 Output Over Current DetectionTroubleshooting Malfunction Caused17.1.1.1To remove power electronic controller 17. Disassembly and Assembly Instructions17.1.1To remove front grille 17.1.1.2To remove discharge grille 17.1.1.3To remove control board Page 18.1Operation Characteristics 18. Technical Data18.1.1CS-E9NK CU-E9NK 81F DBT, 66F WBT šPiping Length Characteristic CoolingRoom temperature Operation condition68F DBT šHeating CharacteristicRoom temperature Operation condition68F DBT šPiping Length Characteristic HeatingRoom temperature Operation conditionRoom temperature 18.1.2CS-E12NK CU-E12NKšCooling Characteristic 81F DBT, 66F WBT81F DBT, 66F WBT šPiping Length Characteristic CoolingRoom temperature Operation condition68F DBT šHeating CharacteristicRoom temperature Operation condition68F DBT šPiping Length Characteristic HeatingRoom temperature Operation condition19. Exploded View and Replacement Parts List 19.1Indoor UnitšAll parts are supplied from PHAAM, Malaysia Vendor Code: 19.2Outdoor Unit CU-E9NKUA REF. NOPART NAME & DESCRIPTION CU-E12NKUA