Panasonic WH-SDF16C9E8 [69/125] Error codes table

Panasonic WH-SDF16C9E8 [69/125] Error codes table
69
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)
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)

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