94
17.4 Error Codes Table
Diagnosis display
Abnormality / Protection control
Abnormality Judgement
Primary location to verify
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
H63
Refrigerant low pressure abnormality
4 times occurrence within
20 minutes
Outdoor low pressure sensor (defective
or disconnected)
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)
F41
PFC control
4 times occurrence within
10 minutes
Voltage at PFC
F42
Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
Outdoor heat exchanger temperature
sensor (defective or disconnected)
Summary of Contents for (WH-UD12CE5-A-1
Page 17: ...17 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 18: ...18 ...
Page 19: ...19 ...
Page 20: ...20 4 1 2 Weekly Timer Setting ...
Page 21: ...21 4 1 3 Setting Up The Special Functions ...
Page 22: ...22 4 1 4 Main Components ...
Page 23: ...23 4 2 Outdoor Unit ...
Page 24: ...24 5 Dimensions 5 1 Indoor Unit ...
Page 25: ...25 5 2 Outdoor Unit 5 2 1 WH UD07CE5 A WH UD09CE5 A WH UD07CE5 A 1 WH UD09CE5 A 1 ...
Page 26: ...26 5 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A WH UD12CE5 A 1 WH UD14CE5 A 1 WH UD16CE5 A 1 ...
Page 28: ...28 7 Block Diagram 7 1 WH UD07CE5 A WH UD09CE5 A WH UD07CE5 A 1 WH UD09CE5 A 1 ...
Page 29: ...29 7 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A WH UD12CE5 A 1 WH UD14CE5 A 1 WH UD16CE5 A 1 ...
Page 31: ...31 8 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 WH SDF12C6E5 1 WH SDF14C6E5 1 WH SDF16C6E5 1 ...
Page 32: ...32 8 2 Outdoor Unit 8 2 1 WH UD07CE5 A WH UD09CE5 A WH UD07CE5 A 1 WH UD09CE5 A 1 ...
Page 33: ...33 8 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A WH UD12CE5 A 1 WH UD14CE5 A 1 WH UD16CE5 A 1 ...
Page 35: ...35 9 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 WH SDF12C6E5 1 WH SDF14C6E5 1 WH SDF16C6E5 1 ...
Page 36: ...36 9 2 Outdoor Unit 9 2 1 WH UD07CE5 A WH UD09CE5 A WH UD07CE5 A 1 WH UD09CE5 A 1 ...
Page 37: ...37 9 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A WH UD12CE5 A 1 WH UD14CE5 A 1 WH UD16CE5 A 1 ...
Page 38: ...38 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 39: ...39 10 1 2 Solar Printed Circuit Board Optional ...
Page 41: ...41 10 2 1 2 Capacitor Printed Circuit Board 10 2 1 3 Noise Filter Printed Circuit Board ...
Page 43: ...43 10 2 2 2 Capacitor Printed Circuit Board 10 2 2 3 Noise Filter Printed Circuit Board ...
Page 65: ...65 ...
Page 71: ...71 ...
Page 72: ...72 ...
Page 82: ...82 ...
Page 131: ...131 18 3 To Remove Pressure Gauge 18 4 To Remove Control Panel ...
Page 132: ...132 18 5 To Remove RCCB 18 6 To Remove Transformer and Electronic Controller Board ...
Page 149: ...149 20 2 WH UD07CE5 A WH UD09CE5 A WH UD07CE5 A 1 WH UD09CE5 A 1 ...
Page 150: ...150 ...
Page 154: ...154 20 3 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A WH UD12CE5 A 1 WH UD14CE5 A 1 WH UD16CE5 A 1 ...
Page 155: ...155 ...