Panasonic Air Conditioner Error Code
Diagnosis display = H00
Abnormality / Protection control = No abnormality detected
Abnormality Judgement =
Emergency operation =
Primary location to verify =
Abnormality / Protection control = Indoor / Outdoor abnormal communication
Abnormality Judgement = > 1 min after starting operation
Emergency operation = Indoor fan operation only
Primary location to verify = • Internal / external cable connections • Indoor / Outdoor PCB
Diagnosis display = H14
Abnormality / Protection control = Indoor intake air temperature sensor abnormality
Abnormality Judgement = Continue for 5 sec.
Emergency operation =
Primary location to verify = • Intake air temperature sensor (detective or disconnected)
Diagnosis display = H15
Abnormality / Protection control = Outdoor compressor temperature sensor abnormality
Abnormality Judgement = Continue for 5 sec
Emergency operation =
Primary location to verify = Compressor temperature sensor (detective or disconnected)
Diagnosis display = H16
Abnormality / Protection control = Outdoor Current Transformer open circuit
Abnormality Judgement =
Emergency operation =
Primary location to verify = • Outdoor PCB • IPM (Power transistor) module
Diagnosis display = H19
Abnormality / Protection control = Indoor fan motor mechanism locked
Abnormality Judgement = 7 times occurance continuously
Emergency operation =
Primary location to verify = • Indoor PCB • Fan motor
Diagnosis display = H23
Abnormality / Protection control = Indoor heat exchanger temperature sensor abnormality
Abnormality Judgement =
Emergency operation = O (Cooling only}
Primary location to verify = • Heat exchanger temperature sensor (detective or disconnected)
Diagnosis display = H24
Abnormality / Protection control = Indoor heat exchanger temperature sensor 2 abnormality
Abnormality Judgement = Continue for 5 sec.
Emergency operation =
Primary location to verify = • Heat exchanger temperature sensor (detective or disconnected)
Diagnosis display = H27
Abnormality / Protection control = Outdoor intake air temperature sensor abnormality
Abnormality Judgement = Continue for 5 sec.
Emergency operation = O
Primary location to verify = • Outdoor temperature sensor (detective or disconnected)
Diagnosis display = H28
Abnormality / Protection control = Outdoor heat exchanger temperature sensor abnormality
Abnormality Judgement = Continue for 5 sec.
Emergency operation = O
Primary location to verify = • Outdoor heat exchanger temperature sensor (detective or disconnected)
Diagnosis display = H30
Abnormality / Protection control = Outdoor discharge air temperature sensor abnormality
Abnormality Judgement = Continue for 5 sec.
Emergency operation =
Primary location to verify = • Outdoor temperature sensor (detective or disconnected)
Diagnosis display = H33
Abnormality / Protection control = Indoor / Outdoor wrong connection
Abnormality Judgement =
Emergency operation =
Primary location to verify = • Indoor / Outdoor supply voltage
Diagnosis display = H38
Abnormality / Protection control = Indoor / Outdoor mismatch (brand code)
Abnormality Judgement =
Emergency operation =
Primary location to verify =
Diagnosis display = H50
Abnormality / Protection control = Ventilation motor abnormality
Abnormality Judgement = 7 times occurance continuously
Emergency operation =
Primary location to verify = • Indoor PCB • Ventilation motor
Diagnosis display = H51
Abnormality / Protection control = Nozzle lock abnormality
Abnormality Judgement = 2 times occurance continuously
Emergency operation =
Primary location to verify = •Nozzle
Diagnosis display = H52
Abnormality / Protection control = Limit switch abnormality
Abnormality Judgement =
Emergency operation =
Primary location to verify = • Indoor PCB
Diagnosis display = H97
Abnormality / Protection control = Outdoor fan motor mechanism locked
Abnormality Judgement = 2 times occurance within 30 minutes
Emergency operation =
Primary location to verify = • Indoor PCB • Fan motor
Diagnosis display = H98
Abnormality / Protection control = Indoor high pressure protection
Abnormality Judgement =
Emergency operation =
Primary location to verify = • Air filter dirty • Air circulation short circuit
Abnormality / Protection control = Indoor heat exchanger anti-freezing protection
Abnormality Judgement =
Emergency operation =
Primary location to verify = • Insufficient refrigerant • Air filter dirty
Diagnosis display = F11
Abnormality / Protection control = Cooling / Heating cycle changeover abnormality
Abnormality Judgement = 4 times occurance within 30 minutes
Emergency operation =
Primary location to verify = •4-way valve • V-coil
Diagnosis display = F90
Abnormality / Protection control = PFC control
Abnormality Judgement = 4 times occurance within 10 minutes
Emergency operation =
Primary location to verify = • Voltage at PFC
Diagnosis display = F91
Abnormality / Protection control = Refrigerantion cycle abnormality
Abnormality Judgement = 2 times occurance within 20 minutes
Emergency operation =
Primary location to verify = • No refrigerant (3-way valve is closed)
Diagnosis display = F93
Abnormality / Protection control = Compressor rotation failure
Abnormality Judgement = 4 times occurance within 20 minutes
Emergency operation =
Primary location to verify = •Compressor
Diagnosis display = F95
Abnormality / Protection control = Cool high pressure protection
Abnormality Judgement = 4 times occurance within 20 minutes
Emergency operation =
Primary location to verify = • Outdoor refrigerant circuit
Diagnosis display = F96
Abnormality / Protection control = IPM (power transistor) overheating protection
Abnormality Judgement = 4 times occurance within 30 minutes
Emergency operation =
Primary location to verify = • Excess refrigerant • Improper heat radiation • IPM (Power transistor)
Diagnosis display = F97
Abnormality / Protection control = Outdoor compressor overheating protection
Abnormality Judgement = 4 times occurance within 10 minutes
Emergency operation =
Primary location to verify = • Insufficient refrigerant • Compressor
Diagnosis display = F98
Abnormality / Protection control = Total running current protection
Abnormality Judgement = 3 times occurance within 20 minutes
Emergency operation =
Primary location to verify = • Excess refrigerant • Improper heat radiation
Diagnosis display = F99
Abnormality / Protection control = Outdoor Direct Current (DC) peak detection
Abnormality Judgement = 7 times occurance continuously
Emergency operation =
Primary location to verify = • Outdoor PCB • IPM (Power transistor) • Compressor
Error codes for 9,000-24,000 BTU Models
Panasonic inverter air conditioner error codes
S01
|
Room temperature sensor failure
|
Refer to detailed diagnostic
|
S02
|
Indoor coil sensor failure
|
Check sensor for continuity
|
S03
|
Humidity sensor failure
|
Replace indoor board
|
S04
|
Comp. temperature sensor failure
|
Check sensor for continuity
|
S05
|
Outdoor coil sensor failure
|
Check sensor for continuity
|
S06
|
Outdoor air sensor failure
|
Check sensor for continuity
|
S07
|
Outdoor current sensor failure
|
Replace outdoor board
|
E01
|
Indoor/outdoor communication failure
|
Refer to detailed diagnostics
|
E02
|
HIC circuit failure (Compressor/Fan circuit)
|
Refer to detailed diagnostics
|
E03
|
Outdoor unit OTP rom failure
|
Refer to detailed diagnostics
|
E04
|
Peak current cut off
|
Refer to detailed diagnostics
|
E05
|
PAM or Active circuit failure
|
Refer to detailed diagnostics
|
E06
|
High compressor discharge temperature
|
Refer to detailed diagnostics
|
E07
|
Indoor fan operating failure
|
Refer to detailed diagnostics
|
E08
|
4 way valve switching failure (RV)
|
Refer to detailed diagnostics
|
E09
|
No refrigerant protection
|
Refer to detailed diagnostics
|
E10
|
DC compressor drive circuit failure
|
Refer to detailed diagnostics
|
E11
|
Outdoor fan operating failure
|
Refer to detailed diagnostics
|
E12
|
Error in outdoor unit
|
Refer to detailed diagnostics
|
E13
|
Freeze prevention activated
|
Refer to detailed diagnostics
|
