Panasonic WH-SXF12D6E5 Service Manual

Also see for WH-SXF09D3E5: Design handbook Operating instructions Operating instructions

Contents

Panasonic WH-SXF12D6E5 Service Manual Manual pdf 69 page image

6916.4. Error Codes TableAbnormality / Protection control Abnormality Judgement Primary location to verifyDiagnosis displayH00 No abnormality detected — —H12 Indoor/Outdoor capacity unmatched 90s after power supply • Indoor/outdoor connection wire• Indoor/outdoor PCB• Specification and combination table incatalogueH15 Outdoor compressor temperature sensorabnormalityContinue for 5 sec. • Compressor temperature sensor(defective or disconnected)H23 Indoor refrigerant liquid temperaturesensor abnormalityContinue for 5 sec. • Refrigerant liquid temperature sensor(defective or disconnected)H42 Compressor low pressure abnormality — • Outdoor pipe temperature sensor• Clogged expansion valve or strainer• Insufficient refrigerant• Outdoor PCB• CompressorH62 Water flow switch abnormality Continue for 1 min. • Water flow switchH64 Refrigerant high pressure abnormality Continue for 5 sec. • Outdoor high pressure sensor(defective or disconnected)H70 Back-up heater OLP abnormality Continue for 60 sec. • Back-up heater OLP(Disconnection or activated)H72 Tank sensor abnormal Continue for 5 sec. • Tank sensorH76 Indoor - control panel communicationabnormality— • Indoor - control panel(defective or disconnected)H90 Indoor / outdoor abnormalcommunication> 1 min after starting operation • Internal / external cable connections• Indoor / Outdoor PCBH91 Tank heater OLP abnormality Continue for 60 sec. • Tank heater OLP(Disconnection or activated)H95 Indoor/Outdoor wrong connection — • Indoor/Outdoor supply voltageH98 Outdoor high pressure overloadprotection— • Outdoor high pressure sensor• Water pump or water leakage• Clogged expansion valve or strainer• Excess refrigerant• Outdoor PCBH99 Indoor heat exchanger freeze prevention — • Indoor heat exchanger• Refrigerant shortageF12 Pressure switch activate 4 times occurrence within 20minutes• Pressure switchF14 Outdoor compressor abnormal revolution 4 times occurrence within 20minutes• Outdoor compressorF15 Outdoor fan motor lock abnormality 2 times occurrence within 30minutes• Outdoor PCB• Outdoor fan motorF16 Total running current protection 3 times occurrence within 20minutes• Excess refrigerant• Outdoor PCBF20 Outdoor compressor overheatingprotection4 times occurrence within 30minutes• Compressor tank temperature sensor• Clogged expansion valve or strainer• Insufficient refrigerant• Outdoor PCB• CompressorF22 IPM (power transistor) overheatingprotection3 times occurrence within 30minutes• Improper heat exchange• IPM (Power transistor)F23 Outdoor Direct Current (DC) peakdetection7 times occurrencecontinuously• Outdoor PCB• CompressorF24 Refrigeration cycle abnormality 2 times occurrence within 20minutes• Insufficient refrigerant• Outdoor PCB• Compressor low compressionF25 Cooling / Heating cycle changeoverabnormality4 times occurrence within 30minutes• 4-way valve• V-coilF27 Pressure switch abnormality Continue for 1 min. • Pressure switchF36 Outdoor air temperature sensorabnormalityContinue for 5 sec. • Outdoor air temperature sensor(defective or disconnected)F37 Indoor water inlet temperature sensorabnormalityContinue for 5 sec. • Water inlet temperature sensor(defective or disconnected)F40 Outdoor discharge pipe temperaturesensor abnormalityContinue for 5 sec. • Outdoor discharge pipe temperaturesensor (defective or disconnected)