Panasonic CS-PS9NKV, Service Manual

Page: 59 / 108

59
14.3 Error Code Table
Diagnosis
display
Abnormality / Protection control Abnormality Judgment
Emergency
Operation
Primary location to verify
H00 No abnormality detected - Normal operation
H11 Indoor / Outdoor abnormal
communication > 1 min after starting
operation
Indoor fan operation
only
•
Internal / external cable connection
•
Indoor / outdoor PCB
H12 Connection capability rank abnormality Continuously for 90 sec
after power supplied
- -
H14 Indoor intake air temperature sensor
abnormality Continue for 5 sec. - •
Intake air temperature sensor
(defective or disconnected)
H15 Outdoor compressor temperature sensor
abnormality Continue for 5 sec. -
• Compressor temperature sensor
(defective or disconnected)
H16 Outdoor current transformer open circuit - - •
Outdoor PCB
• IPM (Power transistor) module
H19 Indoor fan motor mechanism locked 7 occurrences
continuously
- •
Indoor PCB
•
Fan motor
H23 Indoor heat exchanger temperature
sensor abnormality Continue for 5 sec. ○ •
Heat exchanger temperature sensor
(defective or disconnected)
H27 Outdoor air temperature sensor
abnormality Continue for 5 sec. ○ • Outdoor temperature sensor
(defective or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality Continue for 5 sec. ○ •
Outdoor heat exchanger
temperature sensor (defective or
disconnected)
H30 Outdoor discharge pipe temperature
sensor abnormality Continue for 5 sec. ○ • Outdoor discharge pipe temperature
sensor (defective or disconnected)
H33 Indoor / outdoor wrong connection - - •
Indoor / outdoor supply voltage
H38 Indoor / outdoor mismatch (brand code) - - -
H97 Outdoor fan motor mechanism locked 2 occurrences within 30
minutes
- •
Outdoor PCB
•
Outdoor Fan Motor
H98 Indoor temperature rise abnormality - -
• Air filter dirty
•
Air circulation short circuit
H99 Indoor heat exchanger freeze prevention
protection - -
• Insufficient refrigerant
•
Air filter dirty
F11 4 way valve switching failure * 4 occurrences within 30
minutes
- • 4-way valve
• v-coil
F90 System and compressor microcomputer
communication error(for S10*** only) 2 occurrences within 5
seconds
- •
Compressor
• Outdoor PCB
F90 Power factor correction abnormality 4 occurrences within 20
minutes
- •
Outdoor PCB
F91 Refrigerant cycle abnormal 2 occurrences within 20
minutes
- • No refrigerant ( 3-way valve is
closed)
F93 Outdoor compressor abnormal revolution 4 occurrences within 20
minutes
- •
Outdoor compressor
F95 Cooling high pressure protection 4 occurrences within 20
minutes
- • Outdoor refrigerant circuit
F96 Intelligent power transistor overheating
protection -
• Excess refrigerant
•
Improper heat radiation
•
IPM (Power transistor)
F97 Compressor temperature rise protection
control 4 times occurrence within
20 minutes
-
• Insufficient refrigerant
•
Compressor
F98 Total running current protection 3 times occurrence within
20 minutes
- • Excess refrigerant
• Improper heat radiation
F99 Outdoor direct current (DC) peak
detection 7 times occurrence
continuously
- • Outdoor PCB
• IPM (Power transistor)
•
Compressor
Note:
“
○ ” – 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 Code Table) by using remote control or Auto OFF/ON button at indoor unit. However, the remote
control signal receiving sound is changed from one “beep” to four “beep” sounds.