Panasonic PAW-VP1000LDHW Installation Manual

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72 DHW PAW-VP - Installation manual – 2020-05Error Codes PACi & ECOi9Error group Symptoms Possible causes / Remedy Wired remotecontroller displayThermistor fault Outdoor thermistor is either open ordamagedCompressor 1 discharge temperature sensor has failure. (DISCH1) F04Compressor 2 discharge temperature sensor has failure. (DISCH2) F05Outdoor unit heat exchanger 1 gas temperature sensor has failure.(EXG1)F06Outdoor unit heat exchanger 1 liquid temperature sensor has failure.(EXL1)F07Outdoor temperature sensor has failure. (TO) F08Outdoor thermistor is either open ordamaged.Compressor inlet temperature sensor has failure. (SCT) F12Subcooling heat exchanger temperature sensor has failure. (SCG) F14High pressure sensor has failure. (HPS) F16Low pressure sensor has failure. (LPS) F17Outdoor unit heat exchanger 2 gas temperature sensor has failure.(EXG2)F23Outdoor unit heat exchanger 2 liquid temperature sensor has failure.(EXL2)F24Activation of protec-tive deviceProtective device in indoor unit is activated. Thermal protector for Indoor unit fan motor is activated. <>Connection to the panel of indoor unit is not good. <>Float switch of drain pan safety is activated. <>Cooling water freeze (Air-to-Water) <>Indoor unit fan inverter protection control is activated. <>O 2 sensor has activated. P14Protective device in outdoor unit is activated. Compressor 1 discharge temperature is too high. P03High pressure switch is activated. P04Compressor 1 AC power supply has abnormal. P05Compressor 2 AC power supply has abnormal. P15Compressor 1 secondary current is overcurrent. P16Compressor 2 discharge temperature is too high. P17Compressor 2 start failure. Compressor 2 is missing phase. P19Outdoor unit fan motor has failure. P22WHE water pump interlock OFF alarmWHE pump interlock error (EXCT error)P23Compressor 2 secondary current is overcurrent. P26Compressor 1 start failure. Compressor 1 is missing phase. P29Indoor unit communication error of groupcontrol wiring.Other indoor unit in group control has an alarm. EEPROM on indoor unit PCB failure. F29EEPROM on outdoor unit PCB has failure. F31Protective devicefor compressor isactivatedProtective device for compressor No. 1 isactivated.Compressor 1 primary current is overcurrent. H01Compressor 1 current sensor is disconnected or shorted. H03Compressor 1 discharge temperature sensor is disconnected,shorted or misplaced. (DISCH1)H05Protective device for compressor No. 2 isactivated.Compressor 2 primary current is overcurrent. H11Compressor 2 current sensor is disconnected or shorted. H13Compressor 2 discharge temperature sensor is disconnected,shorted or misplaced. (DISCH2)H15Low pressure sensor value is too low. H06Oil sensor fault.(Disconnection, etc.)Compressor 1 oil temperature sensor has failure. (OIL1) H08Compressor 2 oil temperature sensor has failure. (OIL2) H27Abnormal device function Compressor 2 HIC has failure. HIC is overcurrent or overheat.VDC is undervoltage or overvoltage.H21Compressor 1 HIC has failure. HIC is overcurrent or overheat.VDC is undervoltage or overvoltage.H31<< >> Alarm indication: Does not affect the operation of other indoor units.< > Alarm indication: In some cases may affect the operation of other indoor units.Alarm codes for indoor/outdoor units ECOi MF3 (continued)