Error Codes Table - Panasonic CS-S18HKH Service Manual

15.3.

Error Codes Table

Diagnosis
Abnormality / Protection control
display
H00 No abnormality detected
H11 Indoor / outdoor abnormal
communication
H12 Connection capability rank abnormal
H14 Indoor intake air temperature sensor
abnormality
H15 Outdoor compressor temperature
sensor abnormality
H16 Outdoor Current Transformer open
circuit
H19 Indoor fan motor merchanism lock
H23 Indoor heat exchanger temperature
sensor abnormality
H25 E-Ion breakdown
H27 Outdoor air temperature sensor
abnormality
H28 Outdoor heat exchanger temperature
sensor abnormality
H30 Discharge temperature sensor
abnormality
H33 Indoor/Outdoor wrong connection
H38 Indoor/outdoor mismatch (brand code)
H58 Abnormal gas sensor
H97
Outdoor Fan Motor lock abnormality
H98 Indoor high pressure protection
H99 Indoor heat exchanger anti-freezing
protection
F11 Cooling / Heating cycle changeover
abnormality*
F90 System and compressor
microcomputer communication error
F91 Refrigeration cycle abnormal
F93 Outdoor compressor abnormal
revolution
F95 Cooling high pressure protection
F96 IPM (power transistor) overheating
protection
F97 Outdoor compressor overheating
protection
F98 Total running current protection
F99 Outdoor Direct Current (DC) peak
detection
Note:
"O" - Frequency measured and fan speed fixed.
"*" - For cooling only model, it is the indication when indoor heat exchanger sensor or indoor air intake sensor has abnormality.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until "beep" sound heard
following by pressing the "CHECK" button at Remote Control.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error
Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is
changed from one "beep" to four "beep" sounds.
Abnormality
Judgement
— Normal operation
> 1 min after starting Indoor fan operation
operation only
Continuous for 90 sec.
after power supplied
Continue for 5 sec.
Continue for 5 sec.
—
7 times occurance
continuously
Continue for 5 sec.
—
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
—
—
Continue for 6 hours
—
—
—
4 times occurance
within 30 minutes
2 times occurance
within 5 seconds
2 times occurance
within 20 minutes
4 times occurance
within 20 minutes
4 times occurance
within 20 minutes
—
4 times occurance
within 20 minutes
3 times occurance
within 20 minutes
7 times occurance
continuously
52
Emergency Primary location to verify
operation
• Internal / external cable connections
• Indoor / Outdoor PCB
—
— • Intake air temperature sensor
(detective or disconnected)
— • Compressor temperature sensor
(detective or disconnected)
— • Outdoor PCB
• IPM (Power transistor) module
— • Indoor PCB
• Fan motor
O • Heat exchanger temperature sensor
(Cooling only) (defective or disconnected)
— • Indoor PCB
• E-Ion PCB
O • Outdoor temperature sensor
(defective or disconnected)
O • Outdoor heat exchanger
temperature sensor (defective or
disconnected)
— • Discharge temperature sensor
— • Indoor/Outdoor supply voltage
—
— • Gas sensor
(defective or disconnected)
—
• Outdoor PCB
• Outdoor Fan Motor
— • Air filter dirty
• Air circulation short circuit
— • Insufficient refrigerant
• Air filter dirty
— • 4-way valve
• V-coil
— • Compressor
• Outdoor PCB
— • No refrigerant
(3-way valve is closed)
— • Outdoor compressor
— • Outdoor refrigerant circuit
— • Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
— • Insufficient refrigerant
• Compressor
— • Excess refrigerant
• Improper heat radiation
— • Outdoor PCB
• IPM (Power transistor)
• Compressor
—
—