Error Codes Table - Panasonic CS-MS9SD3H Service Manual

13.4 Error Codes Table

Diagnosis
Abnormality / Protection control
display
H00 No abnormality detected
H11 Indoor / outdoor abnormal communication
H12 Connection capability rank abnormal
Indoor intake air temperature sensor
H14
abnormality
Outdoor compressor temperature sensor
H15
abnormality
H16 Outdoor Current Transformer open circuit
H19 Indoor fan motor mechanism lock
H21 Indoor float switch operation abnormal
Indoor heat exchanger temperature
H23
sensor 1 abnormality
Indoor heat exchanger temperature
H24
sensor 2 abnormality
Outdoor air temperature sensor
H27
abnormality
Outdoor heat exchanger temperature
H28
sensor 1 abnormality
Discharge temperature sensor
H30
abnormality
Outdoor heat exchanger temperature
H32
sensor 2 abnormality
Outdoor heat sink temperature sensor
H34
abnormality
Indoor drain water adverse current
H35
abnormal
H36 Gas pipe temperature sensor abnormality
Outdoor liquid pipe temperature sensor
H37
abnormality
Abnormal indoor operating unit or standby
H39
units
H41 Wiring or piping connection abnormality
Outdoor high pressure sensor
H64
abnormality
H97 Outdoor Fan Motor lock abnormality
H98 Indoor high pressure protection
Indoor heat exchanger anti-freezing
H99
protection
F11 4-way valve switching failure*
F17 Indoor unit freezing error
F90 PFC control
F91 Refrigeration cycle abnormality
F93 Outdoor compressor abnormal revolution
Compressor discharge pressure
F94
overshoot protection
F95 Cool high pressure protection
Abnormality Emergency
Judgment Operation
─ Normal operation
> 1 min. after Indoor fan
starting operation operation only
─
Continue for 5 sec.
Continue for 5 sec.
─
─
─
Continue for 5 sec.
(Cooling only)
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
Continue for 2 sec.
─
Continue for 5 sec.
Continue for 2 sec.
─
3 minutes after
compressor start up
Continue for 1 minute
2 times occurrence
within 30 minutes
─
─
4 times occurrence
within 30 minutes
3 times occurrence
within 30 minutes
4 times occurrence
within 10 minutes
2 times occurrence
within 20 minutes
4 times occurrence
within 20 minutes
4 times happen
within 30 minutes
4 times occurrence
within 20 minutes
41
Primary location to verify
 Internal / external cable connections
 Indoor / Outdoor PCB
─
 Intake air temperature sensor
─
(defective or disconnected)
 Compressor temperature sensor
─
(defective or disconnected)
 Outdoor PCB
─
 IPM (Power transistor) module
 Indoor PCB
─
 Fan motor
─
 Heat exchanger temperature sensor 1
O
(defective or disconnected)
 Heat exchanger temperature sensor 2
─
(defective or disconnected)
 Outdoor temperature sensor
O
(defective or disconnected)
 Outdoor heat exchanger temperature
O
sensor (defective or disconnected)
 Discharge temperature sensor
─
 Discharge pipe temperature sensor
─
(defective or disconnected).
 Outdoor heat sink temperature sensor
─
(defective or disconnected).
─
 Gas pipe temperature sensor
─
(defective or disconnected).
 Outdoor liquid pipe temperature
─
sensor (defective or disconnected).
─
─
 High pressure sensor
─
 Lead wire and connector
 Outdoor PCB
─
 Outdoor Fan Motor
 Air filter dirty
─
 Air circulation short circuit
 Insufficient refrigerant
─
 Air filter dirty
 4-way valve
─
 V-coil
 Expansion valve leakage
 Indoor unit pipe temperature sensor
─
(check for changes in characteristics
and check its resistance)
 Voltage at PFC
─
 No refrigerant
─
(3-way valve is closed)
 Outdoor compressor
─
 Check refrigerant system
─
 Outdoor refrigerant circuit
─
─
─
─
─
─
─