Panasonic CS-G123KE - Page 49

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MAC9509078C2
CS-G93KE
Servicing Information
Abnormality
Judgement
1 min after
starting operation
4 times
occurance within
40 minutes
2 times
occurance within
30 minutes
4 times
occurance within
30 minutes
4 times
occurance within
40 minutes
4 times
occurance within
20 minutes
3 times
occurance within
30 minutes
7 times
occurance
continuously
Abnormality / Protection control
Indoor / outdoor abnormal
communication
Indoor intake air temperature
sensor abnormality
Outdoor compressor temperature
sensor abnormality
Outdoor Current Transformer open
circuit
Indoor fan motor mechanism lock
Indoor heat exchanger temperature
sensor abnormality
Outdoor air temperature sensor
abnormality
Outdoor heat exchanger tempera-
ture sensor abnormality
Indoor high pressure protection
Indoor heat exchanger anti-freezing
protection
Cooling / Heating cycle changeover
abnormality
Refrigeration cycle abnormality
Outdoor compressor abnormal
revolution
IPM (power transistor)
overheating protection
Outdoor compressor overheating
protection
Total running current protection
Outdoor Direct Current (DC) peak
detection
Diagnosis
display
H11
H14
H15
H16
H19
H23
H27
H28
H98
H99
F11
F91
F93
F96
F97
F98
F99
Temporary
operation
–
–
–
–
–
t
(Cooling only)
t
t
–
–
–
–
–
–
–
–
–
Primary location to verify
• Internal / external cable connections
• Indoor / Outdoor PCB
• Intake air temperature sensor
(defective or disconnected)
• Compressor temperature sensor
(defective or disconnected)
• Outdoor PCB
• IPM (Power transistor) module
• Indoor PCB
• Fan motor
• Heat exchanger temperature sensor
(defective or disconnected)
• Outdoor temperature sensor
(defective or disconnected)
• Outdoor heat exchanger temperature
sensor
(defective or disconnected)
• Air filter dirty
• Air circulation short circuit
• Insufficient refrigerant
• Air filter dirty
• 4-way valve
• V-coil
• No refrigerant
(3-way valve is closed)
• Compressor
• Outdoor PCB
• Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
• Insufficient refrigerant
• Compressor
• Excess refrigerant
• Improper heat radiation
• Outdoor PCB
• IPM (Power transistor)
• Compressor
Untitled-8 6/20/00, 5:17 PM54