60
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 Discharge temperature sensor
abnormality Continue for 5 sec. • Outdoor discharge temperature
sensor (defective or disconnected)
H33 Indoor / outdoor wrong connection - - • Indoor / outdoor supply voltage
H38 Indoor / outdoor mismatch (brand code) - - -
H64 Outdoor high pressure sensor
abnormality Continue for 1 minutes -
•
High pressure sensor
•
Lead wire and connector
H97 Outdoor fan lock abnormality
2 occurrences within 30
minutes
•
Outdoor fan motor locked
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
F17 Indoor standby units freezing abnormality 3 times happen within
40 minutes -
•
Check indoor/outdoor connection
wire and pipe
•
Indoor heat exchanger sensor lead
wire and connector
•
Expansion valve lead wire and
connector.
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