Panasonic WH-ADF0309J3E5CM Service Manual page 233

Diagnosis display Abnormality/Protection control
H95 Indoor/Outdoor wrong connection
Outdoor high pressure overload
protection
H98 / F95
Cooling high pressure overload
protection
H99 Indoor heat exchanger freeze prevention
F12 Pressure switch activate
F14 Outdoor compressor abnormal revolution
F15 Outdoor fan motor lock abnormality
F16 Total running current protection
Outdoor compressor overheating
F20
protection
IPM (power transistor) overheating
F22
protection
Outdoor Direct Current (DC) peak
F23
detection
F24 Refrigeration cycle abnormality
Cooling/Heating cycle changeover
F25
abnormality
F27 Pressure switch abnormality
*F29 Low Discharge Superheat
F30 Water outlet sensor 2 abnormality
F32 Abnormal Internal Thermostat
F33 Freezing of standby unit error
Outdoor air temperature sensor
F36
abnormality
Indoor water inlet temperature sensor
F37
abnormality
Outdoor discharge pipe temperature
F40
sensor abnormality
F41 PFC control
Outdoor heat exchanger temperature
F42
sensor abnormality
F43 Outdoor defrost sensor abnormality
Indoor water outlet temperature sensor
F45
abnormality
Outdoor Current Transformer open
F46
circuit
Outdoor EVA outlet temperature sensor
*F48
abnormality
Outdoor bypass outlet temperature
*F49
sensor abnormality
Note: * This error code is not applicable for this system.
Abnormality judgement
—
—
—
4 times occurrence within
30 minutes
4 times occurrence within
20 minutes
2 times occurrence within
30 minutes
3 times occurrence within
20 minutes
3 times occurrence within
30 minutes
4 times occurrence within
30 minutes
7 times occurrence
continuously
4 times occurrence within
60 minutes
4 times occurrence within
30 minutes
Continue for 1 min.
1 times occurrence within
2550 minutes
Continue for 5 sec.
Continue for 5 sec.
3 times occurrence within
40 minutes
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
4 times occurrence within
20 minutes
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
—
Continue for 5 sec.
Continue for 5 sec.
233
Primary location to verify
 Indoor/Outdoor supply voltage
 Outdoor high pressure sensor
 Water pump or water leakage
 Clogged expansion valve or strainer
 Excess refrigerant
 Room Air Filter dirty or air circulation
short circuit
 Indoor heat exchanger
 Refrigerant shortage
 Pressure switch
 Power transistor module faulty or
compressor lock
 Outdoor fan motor lead wire &
connector
 Fan motor lock or block
 Excess refrigerant
 Outdoor PCB
 Compressor tank temperature sensor
 Clogged expansion valve or strainer
 Insufficient refrigerant
 Outdoor PCB
 Compressor
 Improper heat exchange
 IPM (Power transistor)
 Outdoor PCB
 Compressor
 Insufficient refrigerant
 Outdoor PCB
 Valve Close
 4-way valve
 V-coil
 Pressure switch
 Discharge Temperature Sensor
 Discharge Pressure Sensor
 Pressure Switch
 Outdoor PCB
 Water outlet sensor 2 (defective or
disconnected)
 Control panel PCB thermostat
 Wrong wiring and connecting pipe, or
Expansion valve leakage
 Outdoor air temperature sensor
(defective or disconnected)
 Water inlet temperature sensor
(defective or disconnected)
 Outdoor discharge pipe temperature
sensor (defective or disconnected)
 Outdoor PCB
 Outdoor heat exchanger temperature
sensor (defective or disconnected)
 Outdoor defrost sensor (defective or
disconnected)
 Water outlet temperature sensor
(defective or disconnected)
 Insufficient refrigerant
 Outdoor PCB
 Compressor low
 Outdoor EVA outlet temperature sensor
(defective or disconnected)
 Outdoor bypass outlet temperature
sensor (defective or disconnected)