Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA service manual

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16.4.25F97 (Compressor Overheating)

Malfunction Decision Conditions

During operation of cooling and heating, when compressor tank temperature data (233.6°F) is detected by the compressor tank temperature sensor.

Malfunction Caused

šRefrigerant shortage (refrigerant leakage).

š2/3 way valve closed.

šDetection error due to faulty compressor tank temperature sensor.

Troubleshooting

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Contents CS-E9NKUAW CU-E9NKUA CS-E12NKUAW CU-E12NKUA Exploded View and Replacement Parts List Safety Precautions Page Specification CU-E9NKUA CU-E12NKUA ARIType Propeller Fan Material Motor Type DC 8 poles DRY Bulb WET Bulb Features š Easy to use remote control š Quality ImprovementIndoor Unit Outdoor Unit Remote Control Location of Controls and ComponentsDimensions Indoor UnitOutdoor Unit Refrigeration Cycle Diagram Block Diagram Wiring Connection Diagram Outdoor Unit Electronic Circuit Diagram Outdoor Unit Printed Circuit Board Main Printed Circuit BoardPower Printed Circuit Board Indicator Printed Circuit Board Outdoor Unit Installation Instruction Indoor/Outdoor Unit Installation DiagramSelect the Best Location Indoor UnitHow to Fix Installation Plate To Drill a Hole in the Wall and Install a Sleeve of PipingIndoor Unit Installation Connect the Cable to the Indoor Unit Wiring Stripping and connecting requirement Cutting and flaring the pipingInstall the Outdoor Unit Connect the PipingConnecting the piping to outdoor multi Evacuation of the equipmentConnect the Cable to the Outdoor Unit Operation Control Basic FunctionIndoor Fan Motor Operation Basic Rotation Speed rpmOutdoor Fan Motor Operation Airflow DirectionVertical Airflow Quiet Operation Cooling Mode/Cooling Area of Dry Mode Quiet Operation HeatingHorizontal Airflow Powerful Mode Operation Timer ControlOn Timer Control OFF Timer ControlIndication Panel Operation Control For Multi Split Connection Cooling operationSoft Dry Operation Heating OperationAutomatic Operation Residual Heat Removal ControlProtection Control Protection Control For All OperationsOutdoor Air Temperature Control Protection Control For Cooling & Soft Dry OperationCompressor Overheating Prevention Control Low Pressure Prevention Control Gas Leakage DetectionCooling Overload Control Freeze Prevention ControlDew Prevention Control Protection Control For Heating OperationOutdoor Air Temperature Control Servicing Mode Auto Off/On ButtonRemote Control Button Troubleshooting Guide Refrigeration Cycle SystemPage To Display Memorized Error Code Protective Operation Breakdown Self Diagnosis FunctionSelf Diagnosis Function Three Digits Alphanumeric Code To Make a DiagnosisError Code Table Page Self-diagnosis Method 16.4.1 H11 Indoor/Outdoor Abnormal Communication16.4.2 H12 Indoor/Outdoor Capacity Rank Mismatched 16.4.3 H14 Indoor Intake Air Temperature Sensor Abnormality 16.4.4 H15 Compressor Temperature Sensor Abnormality 16.4.5 H16 Outdoor Current Transformer Open Circuit 16.4.6 H19 Indoor Fan Motor DC Motor Mechanism Locked 16.4.7 H23 Indoor Pipe Temperature Sensor Abnormality 16.4.8 H27 Outdoor Air Temperature Sensor Abnormality 16.4.9 H28 Outdoor Pipe Temperature Sensor Abnormality Malfunction Decision Conditions Malfunction Decision Conditions 16.4.12 H33 Unspecified Voltage between Indoor and Outdoor 16.4.13 H36 Outdoor Gas Pipe Sensor Abnormality Malfunction Decision Conditions 16.4.15 H97 Outdoor Fan Motor DC Motor Mechanism Locked 16.4.16 H98 Indoor High Pressure Protection Malfunction Decision Conditions 16.4.18 F11 Indoor Pipe Temperature Sensor Abnormality 16.4.19 F17 Indoor Standby Units Freezing Abnormality Remark16.4.20 F90 Power Factor Correction Protection 16.4.21 F91 Refrigeration Cycle Abnormality 16.4.22 F93 Compressor Rotation Failure 16.4.23 F95 Cooling High Pressure Abnormality 16.4.24 F96 IPM Overheating 16.4.25 F97 Compressor Overheating 16.4.26 F98 Input Over Current Detection 16.4.27 F99 Output Over Current Detection Disassembly and Assembly Instructions To remove front grilleTo remove discharge grille Page Page Technical Data Operation CharacteristicsCS-E9NK CU-E9NK 139.500 139.000 Piping Length ft 600 Current 400 300 200 100 Page Page CS-E12NK CU-E12NK Page Page Page Exploded View and Replacement Parts List Chassis Complete Outdoor Unit Chassis Assy

Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA specifications

Panasonic has been a pioneer in the heating and cooling industry, and its range of air conditioners, particularly the CS-E9NKUAW and CS-E12NKUAW indoor units, paired with the CU-E9NKUA and CU-E12NKUA outdoor units, exemplify the brand's commitment to energy efficiency, advanced technologies, and user-friendly features.

These models deliver exceptional cooling and heating performance, making them suitable for various climates. One of the prominent features of these units is their Inverter technology, which ensures that the compressor can adjust its speed according to the desired temperature. This not only provides accurate temperature control but also results in lower energy consumption compared to non-inverter systems. Users can enjoy a consistent and comfortable indoor environment while keeping their electricity bills in check.

A key characteristic of the CS-E9NKUAW and CS-E12NKUAW units is their whisper-quiet operation. The low noise levels make them ideal for bedrooms, living rooms, or office spaces, providing comfort without disturbance. With a decorative design, these indoor units seamlessly blend into any interior, enhancing the aesthetic appeal of the space.

These Panasonic models are also equipped with advanced air purification systems. Utilizing a combination of nanoe™ technology, the air conditioners effectively reduce airborne bacteria, viruses, and allergens, ensuring cleaner and healthier indoor air quality. The air purification feature is complemented by a powerful filter system that captures dust and particulate matter, further enhancing the overall air quality.

The remote control feature allows users to operate the units with ease. With programmable timers and personalized settings, optimal comfort and convenience are just a click away. Additionally, the units are designed to be eco-friendly, adhering to strict environmental regulations and standards, thus promoting sustainability.

For installation, the outdoor units CU-E9NKUA and CU-E12NKUA are engineered to operate efficiently and quietly, accommodating various mounting options for flexible installation. The robust design enhances durability while minimizing maintenance needs, ensuring long-term reliability.

In summary, the Panasonic CS-E9NKUAW, CS-E12NKUAW indoor units, along with their CU-E9NKUA and CU-E12NKUA outdoor counterparts, embody a perfect blend of cutting-edge technology, user-centric features, and energy efficiency. They represent an excellent choice for consumers seeking comfort, convenience, and quality in their heating and cooling solutions.