Panasonic Understanding F90 Error Code and PFC Protection in Air Conditioners

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15.4.15. F90 (Power Factor Correction Protection)

Malfunction Decision Conditions

During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level.

Malfunction Caused

•DC voltage peak due to power supply surge.

•DC voltage peak due to compressor windings not uniform.

•Faulty outdoor PCB.

Troubleshooting

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Contents Table of Contents Exploded View and Replacement Parts List Safety Precautions Page Model Indoor CS-CE9JKE Outdoor CU-CE9JKE SpecificationsType Propeller Fan Material Motor Type Model Indoor CS-CE9JKE Outdoor CU-CE9JKE Model Indoor CS-CE12JKE Outdoor CU-CE12JKE Cool/Fan M3/min ft3/min Model Indoor CS-CE12JKE Outdoor CU-CE12JKE Easy to use remote control Quality Improvement FeaturesLocation of Controls and Components Indoor Unit Outdoor Unit Remote ControlIndoor Unit DimensionsOutdoor Unit Refrigeration Cycle Diagram Block Diagram Wiring Connection Diagram Outdoor Unit Electronic Circuit Diagram Outdoor Unit Main Printed Circuit Board Printed Circuit BoardPower Printed Circuit Board Indicator Printed Circuit Board Outdoor Unit Indoor Unit Installation InstructionIndoor/Outdoor Unit Installation Diagram Select the Best LocationIndoor Unit Installation How to Fix Installation PlateTo Drill a Hole in the Wall and Install Sleeve of Piping This can be used for left rear piping and bottom piping also Cutting and Flaring the Piping Connect the Cable to the Indoor UnitEvacuation of the Equipment Install the Outdoor UnitConnect the Piping Pipe Insulation Connect the Cable to the Outdoor UnitBasic Function Operation and ControlFan Operation Indoor Fan Motor OperationAutomatic Operation Vertical Airflow Outdoor Fan Motor OperationAirflow Direction Indication Panel Timer ControlAuto Restart Control Protection Control For All Operations Protection ControlLow Frequency Protection Control Compressor Overheating Prevention ControlLow Pressure Prevention Control Gas Leakage Detection Freeze Prevention Control Outdoor Air Temperature ControlProtection Control For Cooling & Soft Dry Operation Cooling Overload ControlProtection Control For Heating Operation Auto OFF/ON Button Servicing ModeTimer Remote Control ButtonReset RC Reset ACRefrigeration Cycle System Troubleshooting GuideLow Pressure High Pressure Self Diagnosis Function Three Digits Alphanumeric Code Breakdown Self Diagnosis FunctionProtection control Judgement Error Codes TablePower source or compressor lock 15.4.1. H11 Indoor/Outdoor Abnormal Communication Self-diagnosis Method15.4.2. H14 Indoor Intake Air Temperature Sensor Abnormality 15.4.3. H15 Compressor Temperature Sensor Abnormality 15.4.4. H16 Outdoor Current Transformer Open Circuit 15.4.5. H19 Indoor Fan Motor DC Motor Mechanism Locked 15.4.6. H23 Indoor Pipe Temperature Sensor Abnormality 15.4.7. H27 Outdoor Air Temperature Sensor Abnormality 15.4.8. H28 Outdoor Pipe Temperature Sensor Abnormality Malfunction Decision Conditions 15.4.10. H33 Unspecified Voltage between Indoor and Outdoor 15.4.11. H97 Outdoor Fan Motor DC Motor Mechanism Locked 15.4.12. H98 Indoor High Pressure Protection Malfunction Caused 15.4.14. F11 4-way valve Abnormality 15.4.15. F90 Power Factor Correction Protection Multi Models Only 15.4.16. F91 Refrigeration Cycle Abnormality15.4.17. F93 Compressor Rotation Failure 15.4.18. F95 Cooling High Pressure Abnormality 15.4.19. F96 IPM Overheating 15.4.20. F97 Compressor Overheating 15.4.21. F98 Input Over Current Detection 15.4.22. F99 Output Over Current Detection To remove front grille To remove power electronic controller Disassembly and Assembly InstructionsTo remove discharge grille Page Page Outdoor Electronic Controller Removal Procedure CU-CE9JKE Technical DataOperation Characteristics Page Page Page CU-CE12JKE Page Page Page CU-CE12JKE Sensible Capacity ChartExploded View and Replacement Parts List Chassy Complete Outdoor Unit Chassy ASS’Y