84
17.4. Error Codes Table
Abnormality / Protection control
Abnormality Judgement
Primary location to verify
Diagnosis display
H00
No abnormality detected
—
—
H12
Indoor/Outdoor capacity unmatched
90s after power supply
• Indoor/outdoor connection wire
• Indoor/outdoor PCB
• Specification and combination table in
catalogue
H15
Outdoor compressor temperature sensor
abnormality
Continue for 5 sec.
• Compressor temperature sensor
(defective or disconnected)
H23
Indoor refrigerant liquid temperature
sensor abnormality
Continue for 5 sec.
• Refrigerant liquid temperature sensor
(defective or disconnected)
H42
Compressor low pressure abnormality
—
• Outdoor pipe temperature sensor
• Clogged expansion valve or strainer
• Insufficient refrigerant
• Outdoor PCB
• Compressor
H62
Water flow switch abnormality
Continue for 1 min.
• Water flow switch
H64
Refrigerant high pressure abnormality
Continue for 5 sec.
• Outdoor high pressure sensor
(defective or disconnected)
H70
Back-up heater OLP abnormality
Continue for 60 sec.
• Back-up heater OLP
(Disconnection or activated)
H72
Tank sensor abnormal
Continue for 5 sec.
• Tank sensor
H76
Indoor - control panel communication
abnormality
—
• Indoor - control panel
(defective or disconnected)
H90
Indoor / outdoor abnormal
communication
> 1 min after starting operation
• Internal / external cable connections
• Indoor / Outdoor PCB
H91
Tank heater OLP abnormality
Continue for 60 sec.
• Tank heater OLP
(Disconnection or activated)
H95
Indoor/Outdoor wrong connection
—
• Indoor/Outdoor supply voltage
H98
Outdoor high pressure overload
protection
—
• Outdoor high pressure sensor
• Water pump or water leakage
• Clogged expansion valve or strainer
• Excess refrigerant
• Outdoor PCB
H99
Indoor heat exchanger freeze prevention
—
• Indoor heat exchanger
• Refrigerant shortage
F12
Pressure switch activate
4 times occurrence within 20
minutes
• Pressure switch
F14
Outdoor compressor abnormal revolution
4 times occurrence within 20
minutes
• Outdoor compressor
F15
Outdoor fan motor lock abnormality
2 times occurrence within 30
minutes
• Outdoor PCB
• Outdoor fan motor
F16
Total running current protection
3 times occurrence within 20
minutes
• Excess refrigerant
• Outdoor PCB
F20
Outdoor compressor overheating
protection
4 times occurrence within 30
minutes
• Compressor tank temperature sensor
• Clogged expansion valve or strainer
• Insufficient refrigerant
• Outdoor PCB
• Compressor
F22
IPM (power transistor) overheating
protection
3 times occurrence within 30
minutes
• Improper heat exchange
• IPM (Power transistor)
F23
Outdoor Direct Current (DC) peak
detection
7 times occurrence
continuously
• Outdoor PCB
• Compressor
F24
Refrigeration cycle abnormality
2 times occurrence within 20
minutes
• Insufficient refrigerant
• Outdoor PCB
• Compressor low compression
F25
Cooling / Heating cycle changeover
abnormality
4 times occurrence within 30
minutes
• 4-way valve
• V-coil
F27
Pressure switch abnormality
Continue for 1 min.
• Pressure switch
F36
Outdoor air temperature sensor
abnormality
Continue for 5 sec.
• Outdoor air temperature sensor
(defective or disconnected)
F37
Indoor water inlet temperature sensor
abnormality
Continue for 5 sec.
• Water inlet temperature sensor
(defective or disconnected)
F40
Outdoor discharge pipe temperature
sensor abnormality
Continue for 5 sec.
• Outdoor discharge pipe temperature
sensor (defective or disconnected)
Summary of Contents for WH-UD07CE5-A
Page 16: ...16 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 17: ...17 ...
Page 18: ...18 ...
Page 19: ...19 4 1 2 Weekly Timer Setting ...
Page 20: ...20 4 1 3 Setting Up The Special Functions ...
Page 21: ...21 4 1 4 Main Components 4 2 Outdoor Unit ...
Page 22: ...22 5 Dimensions 5 1 Indoor Unit ...
Page 23: ...23 5 2 Outdoor Unit 5 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 24: ...24 5 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 26: ...26 ...
Page 27: ...27 7 Block Diagram 7 1 WH UD07CE5 A WH UD09CE5 A ...
Page 28: ...28 7 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 29: ...29 8 Wiring Connection Diagram 8 1 Indoor Unit 8 1 1 WH SDF07C3E5 WH SDF09C3E5 ...
Page 30: ...30 8 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 ...
Page 31: ...31 8 2 Outdoor Unit 8 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 32: ...32 8 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 33: ...33 9 Electronic Circuit Diagram 9 1 Indoor Unit 9 1 1 WH SDF07C3E5 WH SDF09C3E5 ...
Page 34: ...34 9 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 ...
Page 35: ...35 9 2 Outdoor Unit 9 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 36: ...36 9 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 37: ...37 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 38: ...38 10 1 2 Solar Printed Circuit Board Optional ...
Page 39: ...39 10 2 Outdoor Unit 10 2 1 WH UD07CE5 A WH UD09CE5 A 10 2 1 1 Main Printed Circuit Board ...
Page 40: ...40 10 2 1 2 Capacitor Printed Circuit Board 10 2 1 3 Noise Filter Printed Circuit Board ...
Page 41: ...41 10 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A 10 2 2 1 Main Printed Circuit Board ...
Page 42: ...42 10 2 2 2 Capacitor Printed Circuit Board 10 2 2 3 Noise Filter Printed Circuit Board ...
Page 73: ...73 ...
Page 74: ...74 ...
Page 120: ...120 18 3 To Remove Pressure Gauge 18 4 To Remove Control Panel ...
Page 121: ...121 18 5 To Remove RCCB 18 6 To Remove Transformer and Electronic Controller Board ...
Page 138: ...138 20 2 WH UD07CE5 A WH UD09CE5 A ...
Page 139: ...139 ...
Page 142: ...142 20 3 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 143: ...143 ...