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13.2.1.2. Error Code Table
Diagnosis
display
Abnormality / Protection control Abnormality
Judgement
Emergency
operation
Primary location to verify
H11 Indoor / outdoor abnormal
communication
> 1 min after starting
operation
Indoor fan operation
only
•
• •
•
Internal / external cable
connections
•
• •
•
Indoor / Outdoor PCB
H14 Indoor intake air temperature sensor
abnormality
— —
•
• •
•
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 lock — —
•
• •
•
Indoor PCB
•
• •
•
Fan motor
H23 Indoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. O
(Cooling only)
•
• •
•
Heat exchanger temperature
sensor (defective or disconnected)
H26 Ionizer abnormality — —
•
• •
•
Indoor PCB
•
• •
•
Ionizer
H27 Outdoor air temperature sensor
abnormality
Continue for 5 sec. O
•
• •
•
Outdoor temperature sensor
(defective or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. O
•
• •
•
Outdoor heat exchanger
temperature sensor (defective or
disconnected)
H33 Indoor/Outdoor wrong connection — —
•
• •
•
Indoor/Outdoor supply voltage
H97 Outdoor Fan Motor lock abnormality — —
•
• •
•
Outdoor PCB
•
• •
•
Outdoor Fan Motor
H98 Indoor high pressure protection — —
•
• •
•
Air filter dirty
•
• •
•
Air circulation short circuit
H99 Indoor heat exchanger anti-freezing
protection
— —
•
• •
•
Insufficient refrigerant
•
• •
•
Air filter dirty
F11 Cooling / Heating cycle changeover
abnormality
4 times occurrence
within 30 minutes
—
•
• •
•
4-way valve
•
• •
•
V-coil
F91 Refrigeration cycle abnormality 2 times occurrence
within 20 minutes
—
•
• •
•
No refrigerant
(3-way valve is closed)
F93 Outdoor compressor abnormal revolution 4 times occurrence
within 20 minutes
—
•
• •
•
Outdoor compressor
F95 Cool high pressure protection 4 times occurrence
within 20 minutes
—
•
• •
•
Outdoor refrigerant circuit
F96 IPM (power transistor) overheating
protection
— —
•
• •
•
Excess refrigerant
•
• •
•
Improper heat radiation
•
• •
•
IPM (Power transistor)
F97 Outdoor compressor overheating
protection
4 times occurrence
within 10 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:
“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 “RESET” 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.
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CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE