Panasonic CS-F24DB4E5 Service Manual

Also see for CS-F24DB4E5: Operating instructions Service manual Simplified service manual Operating instructions Service manual

Contents

Panasonic CS-F24DB4E5 Service Manual Manual pdf 85 page image

12 Troubleshooting Guide12.1. Self-diagnosis error code table•••• The display screen on the wired remote control unit and the self-diagnosis LEDs (green) on the outdoor unit printed circuit boardin the outdoor unit can be used to indicate where the location of a problem is.Refer to the table below to remove the cause of the problem, and then re-start the air conditioner system.•••• If the problem disappears and operation returns to normal, the CHECK display on the remote control unit will switch off, but theself-diagnosis LED will remain illuminated until operation is resumed. ... illuminated ... flashing Blank off.Wired remotecontrol unit displayOutdoor unit printed circuit board LED Location or problem Check locationAbnormaldispalyDetaildispaly302 303 304 305 306 307 308 309F15 -01 Drain level Float switch problem Drain pump and drain pipe, indoor unitconnectors CN-DRMTR&CN-TH2F16 -01 Louver switch problem Louver motor, decorative panel connectionterminal, or indoor unit louver motorconnectorsF17 -02 D. C Fan Motor problem Indoor unit D. C Fan motor or connectionterminalsF20 -01 Indoor temperature sensorproblemIndoor temperature sensor lead wire orindoor unit connector or CN-TH2-02 Remote control thermistorproblemRemote control thermistorF21 -01 Pipe temp. sensor problem(indoor unit)Pipe temperature sensor lead wire or indoorunit connector CN-TH1F26 -01 Remote control transmissionproblemRemote control unit cable and connectionterminalsF27 -01 Indoor/outdoor unitdisconnection problemIndoor/outdoor unit connection cable andconnection terminals, or indoor unit andoutdoor unit power supplies (indoor side)-05 Indoor/outdoor unit connectionproblemIndoor/outdoor unit connection wire (indoorside)F27 -01 Indoor/outdoor unitdisconnection problemIndoor/outdoor unit connection cable andconnection terminals, or indoor unit andoutdoor unit power supplies (outdoor side)-05 Indoor/outdoor unit connectionerror problemIndoor/outdoor unit connection wire (outdoorside)F30 -01 System problem Total capacity for the number of indoor unitsis insufficient, or over check the totalcapacity and the number of indoor units-02 Open phase, or reversed phaseof supplyCheck the main power supply terminal boardconnections, or switch over any two of thepower supply wires.F31 -01 Suction pressure protection Insufficient refrigerant-02 High-pressure cut-off Check the Refrigeration system-06 4 way valve problem Check the 4 way valve or lead wire-08 Freezing problem (Coolingmodel)Check the Refrigerant system-09 Leakage Refrigerant problem Check the Refrigerant system-10 Refrigerant system problem Insufficient refrigerant or valve operation(closed)F32 -03 Inverter protection (Low DCvollage)Check the Power supply-04 Inverter protection (IPMprotection)IPM fault or PCB (MAIN) fault-05 Compressor overcurrentprotectionOpen phase or lock in compressor-06 Compressor discharge temp.protectionInsufficient refrigerant-08 Inverter protection (PFCprotection)PFC fault (PCB-PFC fault)-09 Inverter protection (DC currentprotection)IPM fault or lock in compressor-10 Number of rotation CompressorproblemIPM fault or lock in compressorF35 -02 D. C Fan motor lock problem D. C Fan motor lock85CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5