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

1 90

Download 90 pages 44.12 Kb

Page 73

Image 73

16.4.26F98 (Input Over Current Detection)

Malfunction Decision Conditions

During cooling and heating operation, when an input over-current (16.8A) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.

Malfunction Caused

Over-current due to compressor failure.

Over-current due to defective outdoor unit PCB.

Over-current due to defective inverter main circuit electrolytic capacitor.

Over-current due to excessive refrigerant.

Troubleshooting

Page 73

Image 73

Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA 16.4.26F98 Input Over Current Detection

Contents

Indoor Unit TABLE OF CONTENTSOutdoor Unit CS-E9NKUAWExploded View and Replacement Parts 17. Disassembly and Assembly Instructions13. Operation Control For Multi Split 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 šLong Installation Piping 3. FeaturesšEasy to use remote control šQuality Improvement šServiceability 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 10.1Indoor Unit 10. Printed Circuit Board10.1.1Main Printed Circuit Board 10.1.3Indicator Printed Circuit Board 10.1.2Power Printed Circuit Board10.2.1Main Printed Circuit Board 10.2Outdoor Unit11.1.3Indoor/Outdoor Unit Installation Diagram 11. Installation Instruction11.1Select the Best Location 11.1.1Indoor Unit11.2Indoor Unit 11.2.1How to Fix Installation Plate11.2.3.1For the right rear piping 11.2.3Indoor Unit Installation11.2.3.2For the right bottom piping 11.2.3.3For the embedded piping11.2.4Connect the Cable to the Indoor Unit 11.2.5.1Cutting and flaring the piping 11.2.5Wiring Stripping and connecting requirement11.3.2.1Connecting the piping to indoor 11.3.1Install the Outdoor Unit11.3.2.2Connecting the piping to outdoor 11.3Outdoor Unit11.3.2.4Gas Leak Checking 11.3.2.3Connecting the piping to outdoor multi11.3.3Evacuation of the equipment 11.3.3.2Piping Insulation 11.3.3.1Connect the Cable to the Outdoor Unit12. Operation Control 12.1.1Internal Setting Temperature12.1Basic Function 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 12.4.2Horizontal Airflow 12.6Quiet Operation Heating12.8Timer Control 12.7Powerful Mode Operation12.8.1ON Timer Control 12.8.2OFF Timer Control12.10Indication Panel 13. Operation Control For Multi Split Connection 13.3.2Temperature Sampling Control13.1Cooling operation 13.2Soft Dry Operation13.4Automatic Operation 13.6Powerful Mode Operation13.5Indoor Fan Motor Operation 13.7Auto restart control14.1.4IPM Power Transistor Prevention Control 14.1.1Restart Control Time Delay Safety Control14.Protection Control 14.1Protection Control For All Operations14.1.5Compressor Overheating Prevention Control 14.2.1Outdoor Air Temperature Control14.1.7Low Frequency Protection Control 14.1.8Low Frequency Protection Control14.2.2Cooling Overload Control 14.2.6.1Intake Air Temperature Control14.2.3Freeze Prevention Control 14.2.4Freeze Prevention Control14.2.6.3Overload Protection Control 14.2.6.2Outdoor Air Temperature Control14.2.6.5Cold Draught Prevention Control 14.2.6.6Deice Operation15.1Auto Off/On Button 15. Servicing Mode15.2.2RESET RC 15.2Remote Control Button15.2.3RESET AC 15.2.4TIMER16.1Refrigeration Cycle System 16. Troubleshooting GuidePage 16.2.2To Make a Diagnosis 16.2Breakdown Self Diagnosis Function16.3Error Code Table “” – Frequency measured and fan speed fixed 16.4 Self-diagnosisMethod Troubleshooting16.4.1H11 Indoor/Outdoor Abnormal Communication Malfunction Decision ConditionsTroubleshooting 16.4.2H12 Indoor/Outdoor Capacity Rank MismatchedMalfunction Decision Conditions Malfunction CausedšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions TroubleshootingMalfunction Caused šCT defective šOutdoor PCB defectiveMalfunction Decision Conditions TroubleshootingMalfunction Caused šOperation stops due to Hall IC malfunctionšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions TroubleshootingMalfunction Caused šWrong models interconnectedšFaulty connector connection šFaulty sensor 16.4.13 H36 Outdoor Gas Pipe Sensor AbnormalityšFaulty PCB TroubleshootingšFaulty PCB šFaulty connector connection šFaulty sensorTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions TroubleshootingMalfunction Caused šOperation stops due to Hall IC malfunctionTroubleshooting 16.4.16 H98 Indoor High Pressure ProtectionMalfunction Decision Conditions Malfunction CausedMalfunction Decision Conditions TroubleshootingMalfunction Caused šClogged air filter of the indoor unitšFaulty indoor pipe temperature sensor šFaulty connector connectionšFaulty indoor main PCB TroubleshootingTroubleshooting RemarkMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.20 F90 Power Factor Correction ProtectionMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.21F91 Refrigeration Cycle AbnormalityMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.22F93 Compressor Rotation FailureMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.23F95 Cooling High Pressure AbnormalityMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.24F96 IPM OverheatingMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.25F97 Compressor OverheatingMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.26F98 Input Over Current DetectionMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.27F99 Output Over Current DetectionMalfunction Decision Conditions 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 Room temperature šPiping Length Characteristic Cooling81F DBT, 66F WBT Operation conditionRoom temperature šHeating Characteristic68F DBT Operation conditionRoom temperature šPiping Length Characteristic Heating68F DBT Operation conditionšCooling Characteristic 18.1.2CS-E12NK CU-E12NKRoom temperature 81F DBT, 66F WBTRoom temperature šPiping Length Characteristic Cooling81F DBT, 66F WBT Operation conditionRoom temperature šHeating Characteristic68F DBT Operation conditionRoom temperature šPiping Length Characteristic Heating68F DBT Operation condition19.1Indoor Unit 19. Exploded View and Replacement Parts ListšAll parts are supplied from PHAAM, Malaysia Vendor Code: 19.2Outdoor Unit PART NAME & DESCRIPTION REF. NOCU-E9NKUA CU-E12NKUA