47
15.4. Error Codes Table
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 follow-
ing by pressing the “CHECK” button at remote controller.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error
Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is
changed from one “beep” to four “beep” sounds.
Diagnosis
display
Abnormality / Protection control Abnormality
Judgement
Emergency operation Primary location to verify
H00 No abnormality detected — Normal operation —
H11 Indoor / Outdoor abnormal communica-
tion
> 1 min after starting
operation
Indoor fan operation
only
• Internal / external cable connections
• Indoor / Outdoor PCB
H14 Indoor intake air temperature sensor
abnormality
Continue for 5 sec. — • Intake air temperature sensor (detec-
tive or disconnected)
H15 Outdoor compressor temperature sensor
abnormality
Continue for 5 sec. — • Compressor temperature sensor
(detective or disconnected)
H16 Outdoor Current Transformer open cir-
cuit
— — • Outdoor PCB
• IPM (Power transistor) module
H19 Indoor fan motor mechanism locked 7 times occurance
continuously
— • Indoor PCB
• Fan motor
H23 Indoor heat exchanger temperature sen-
sor abnormality
Continue for 5 sec. O
(Cooling only)
• Heat exchanger temperature sensor
(detective or disconnected)
H24 Indoor heat exchanger temperature sen-
sor 2 abnormality
Continue for 5 sec. — • Heat exchanger temperature sensor 2
(detective or disconnected)
H27 Outdoor intake air temperature sensor
abnormality
Continue for 5 sec. O • Outdoor temperature sensor (detec-
tive or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. O • Outdoor heat exchanger temperature
sensor (detective or disconnected)
H30 Outdoor discharge air temperature sen-
sor abnormality
Continue for 5 sec. — • Outdoor temperature sensor (detec-
tive or disconnected)
H33 Indoor / Outdoor wrong connection — — • Indoor / Outdoor supply voltage
H38 Indoor / Outdoor mismatch (brand code) — — —
H50 Ventilation motor abnormality 7 times occurance
continuously
— • Indoor PCB
• Ventilation motor
H51 Nozzle lock abnormality 2 times occurance
continuously
— • Nozzle
H52 Limit switch abnormality — — • Indoor PCB
H97 Outdoor fan motor mechanism locked 2 times occurance
within 30 minutes
— • Outdoor PCB
• Fan motor
H98 Indoor high pressure protection — — • Air filter dirty
• Air circulation short circuit
H99 Indoor heat exchanger anti-freezing pro-
tection
— — • Insufficient refrigerant
• Air filter dirty
F11 Cooling / Heating cycle changeover
abnormality
4 times occurance
within 30 minutes
— • 4-way valve
•V-coil
F90 PFC control 4 times occurance
within 10 minutes
— • Voltage at PFC
F91 Refrigerantion cycle abnormality 2 times occurance
within 20 minutes
— • No refrigerant
(3-way valve is closed)
F93 Compressor rotation failure 4 times occurance
within 20 minutes
—•Compressor
F95 Cool high pressure protection 4 times occurance
within 20 minutes
— • Outdoor refrigerant circuit
F96 IPM (power transistor) overheating pro-
tection
4 times occurance
within 30 minutes
— • Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97 Outdoor compressor overheating protec-
tion
4 times occurance
within 10 minutes
— • Insufficient refrigerant
• Compressor
F98 Total running current protection 3 times occurance
within 20 minutes
— • Excess refrigerant
• Improper heat radiation
F99 Outdoor Direct Current (DC) peak detec-
tion
7 times occurance
continuously
— • Outdoor PCB
• IPM (Power transistor)
• Compressor
To Next Page
Loading...
