42
16.4. Error Codes Table
Abnormality / Protection control
Abnormality Judgement
Primary location to verify
Diagnosis display
H00
No abnormality detected
—
—
H11
Indoor / outdoor abnormal
communication
> 1 min after starting operation
• Internal / external cable connections
• Indoor / Outdoor PCB
H14
Indoor water outlet temperature sensor
abnormality
Continue for 5 sec.
• Water outlet 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
H23
Indoor refrigerant liquid temperature
sensor abnormality
Continue for 5 sec.
• Refrigerant liquid 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
—
—
H62
Water flow switch abnormality
Continue for 1 min.
• Water flow switch
H63
Refrigerant low pressure abnormality
Continue for 5 sec.
• Outdoor low pressure sensor
(defective or disconnected)
H64
Refrigerant high pressure abnormality
Continue for 5 sec.
• Outdoor high pressure sensor
(defective or disconnected)
H65
Indoor - control panel communication
abnormality
—
• Indoor - control panel
(defective or disconnected)
H66
Compressure low pressure abnormality
—
• Compressor
H68
Indoor water inlet temperature sensor
abnormality
Continue for 5 sec.
• Water inlet temperature sensor
(defective or disconnected)
H98
Indoor high pressure overload protection
—
• Outdoor ambient temperature too high
• Outdoor intake air block
F11
Cooling / Heating cycle changeover
abnormality
4 times occurrence within 30
minutes
• 4-way valve
• V-coil
F90
PFC control
4 times occurrence within 10
minutes
• Voltage at PFC
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
F96
IPM (power transistor) overheating
protection
3 times occurrence within 30
minutes
• Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97
Outdoor compressor overheating
protection
4 times occurrence within 30
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
Содержание WH-UD28AE
Страница 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Страница 11: ...11 ...
Страница 12: ...12 4 1 2 Main Components 4 2 Outdoor Unit ...
Страница 13: ...13 5 Dimensions 5 1 Indoor Unit ...
Страница 14: ...14 5 2 Outdoor Unit ...
Страница 16: ...16 7 Block Diagram ...
Страница 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Страница 18: ...18 8 2 Outdoor Unit ...
Страница 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Страница 20: ...20 9 2 Outdoor Unit ...
Страница 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Страница 22: ...22 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Страница 23: ...23 10 2 2 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...
Страница 68: ...68 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Страница 69: ...69 17 5 To Remove Electronic Controller Board and Transformer 17 6 To Remove RCCB ...
Страница 71: ...71 When reinstall the water pipe use grease or water at the joining ...
Страница 79: ...79 19 2 WH UD24AE WH UD28AE ...
Страница 80: ...80 ...