87
16.4 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)
H20
Water pump abnormality
Continue for 10 sec.
Indoor PCB
Water pump (malfunction)
H23
Indoor refrigerant liquid temperature
sensor abnormality
Continue for 5 sec.
Refrigerant liquid temperature sensor
(defective or disconnected)
H27
Service valve error
Continue for 5 minutes
High pressure 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 - remote control 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
F30
Water outlet sensor 2 abnormality
Continue for 5 sec.
Water outlet sensor 2 (defective or
disconnected)
F36
Outdoor air temperature sensor
abnormality
Continue for 5 sec.
Outdoor air temperature sensor
(defective or disconnected)
Содержание WH-MHF09G3E8
Страница 32: ...32 10 1 2 Solar Printed Circuit Board Optional ...
Страница 33: ...33 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...
Страница 34: ...34 10 2 1 1 Noise Filter Printed Circuit Board ...
Страница 47: ...47 Heat Mode Operation Time Chart ...
Страница 49: ...49 ...
Страница 50: ...50 ...
Страница 56: ...56 ...
Страница 57: ...57 ...
Страница 58: ...58 ...
Страница 127: ...127 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...
Страница 134: ...134 6 25 68 30 5 2 9 7 8 4 27 1 3 21 23 26 62 8 75 24 71 49 48 20 13 12 10 11 4 15 77 71 13 15 78 14 ...
Страница 138: ...138 19 2 Water System 44 46 17 16 4 34 42 18 43 3 33 9 1 45 45 47 2 35 48 36 19 ...