Diagnosis
display
Abnormality / Protection control Abnormality
Judgement
Temporary
operation
Primary location to verify
H11 Indoor / outdoor abnormal
communication
1 min after starting
operation
-
• Internal / external cable connections
• Indoor / Outdoor PCB
H14 Indoor intake air temperature sensor
abnormality
-
• Intake air temperature sensor
(defective or disconnected)
1
H15 Outdoor compressor temperature sensor
abnormality
-
• Compressor temperature sensor
(defective or disconnected)
H16 Outdoor Current Transformer open
circuit
-
• Outdoor PCB
• IPM (Power transistor) module
H19 Indoor fan motor merchanism lock -
• Indoor PCB
• Fan motor
H23 Indoor heat exchanger temperature
sensor abnormality
O
(Cooling only)
• Heat exchanger temperature sensor
(defective or disconnected)
H27 Outdoor air temperature sensor
abnormality
O
• Outdoor temperature sensor
(defective or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality
O
• Outdoor heat exchanger
temperature sensor (defective or
disconnected)
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 occurance
within 40 minutes
-
• 4-way valve
• V-coil
F91 Refrigeration cycle abnormality 2 times occurance
within 30 minutes
-
• No refrigerant
(3-way valve is closed)
F93 Outdoor compressor abnormal revolution 4 times occurance
within 30 minutes
-
• Compressor
• Outdoor PCB
F96 IPM (power transistor) overheating
protection
4 times occurance
within 40 minutes
-
• Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97 Outdoor compressor overheating
protection
4 times occurance
within 20 minutes
-
• Insufficient refrigerant
• Compressor
F98 Total running current protection 3 times occurance
within 30 minutes
-
• Excess refrigerant
• Improper heat radiation
F99 Outdoor Direct Current (DC) peak
detection
7 times occurance
continuously
-
• Outdoor PCB
• IPM (Power transistor)
• Compressor
1
This diagnosis mode can be omitted by the following procedure.
• Press the AUTO button (at indoor unit) continuously for 16 seconds or < 21 seconds, “beep”, “beep”, “beep”, “beep” will be heard
at 16th second. “E1” will be displayed at the indoor unit. This is to indicate H14 abnormality detection is enable.
• Press the Auto switch once. A “beep” sound will be heard. “E2” will be displayed at the indoor unit. This is to indicate H14
abnormality detection is disabled.
85
CS-G95KE CU-G95KE / CS-G125KE CU-G125KE
To Next Page
Loading...
