Error Codes Table - Panasonic CS-E7GKDW CU-E7GKD Service Manual

14.3.

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
H33 Indoor/Outdoor wrong connection
H38 Indoor/outdoor mismatch (brand code)
H58 Abnormal gas sensor
H98 Indoor high pressure protection
H99 Indoor heat exchanger anti-freezing
protection
F11 Cooling / Heating cycle changeover
abnormality
F90 PFC control
F91 Refrigeration cycle abnormal
F93 Outdoor compressor abnormal
revolution
F95 Cool 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.
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 Emergency
Judgement
— Normal operation
> 1 min after starting Indoor fan operation
operation only
—
Continue for 5 sec.
Continue for 5 sec.
—
7 times occurance
continuously.
Continue for 5 sec.
(Cooling only)
—
Continue for 5 sec.
Continue for 5 sec.
—
—
Continue for 6 hours
—
—
4 times occurance
within 30 minutes
4 times occurance
within 20 minutes
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
49
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
(defective or disconnected)
— • Indoor PCB
• E-Ion PCB
O • Outdoor temperature sensor
(defective or disconnected)
O • Outdoor heat exchanger
temperature sensor (defective or
disconnected)
— • Indoor/Outdoor supply voltage
—
— • Gas sensor
(defective or disconnected)
— • Air filter dirty
• Air circulation short circuit
— • Insufficient refrigerant
• Air filter dirty
— • 4-way valve
• V-coil
— • Voltage at PFC
— • 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
—
—