Panasonic CS-Z25UFRAW Operating Instructions Manual page 22

Troubleshooting
How to retrieve error codes
If the unit stops and the TIMER indicator blinks, use the remote control to retrieve the error code.
1 Press for
5 seconds
Press for 5
3
seconds to quit
checking
• For certain errors, you may restart the unit for limited operation if there are 4 beeps when operation starts.
Diagnostic Abnormality/Protection control
display
H 00 No memory of failure
Indoor/outdoor abnormal
H 11
communication
H 12 Indoor unit capacity unmatched
Indoor intake air temperature sensor
H 14
abnormality
Outdoor compressor temperature
H 15
sensor abnormality
Outdoor current transformer (CT)
H 16
abnormality
Outdoor suction temperature sensor
H 17
abnormality
H 19 Indoor fan motor mechanism lock
Indoor fl oat switch operation
H 21
abnormality
Indoor heat exchanger temperature
H 23
sensor 1 abnormality
Indoor heat exchanger temperature
H 24
sensor 2 abnormality
H 25 Indoor ion device abnormality
H 26 Minus ION abnormality
Outdoor air temperature sensor
H 27
abnormality
Outdoor heat exchanger temperature
H 28
sensor 1 abnormality
Outdoor discharge pipe temperature
H 30
sensor abnormality
H 31 Abnormal swimming pool sensor
Outdoor heat exchanger temperature
H 32
sensor 2 abnormality
Indoor/outdoor misconnection
H 33
abnormality
Outdoor heat sink temperature sensor
H 34
abnormality
Indoor/outdoor water adverse current
H 35
abnormality
Outdoor gas pipe temperature
H 36
sensor abnormality
Outdoor liquid pipe temperature
H 37
sensor abnormality
Indoor/outdoor mismatch
H 38
(brand code)
Abnormal indoor operating unit or
H 39
standby units
* Some error code may not be applicable to your model. Consult authorised dealer for clarifi cation.
22
TIMER TIMER
SET SET
ON ON
1 1 2 3 3
TIMER TIMER
CANCEL CANCEL
OFF OFF
AC AC RC RC
CLOCK CLOCK
SET SET CHECK RESET RESET
Diagnostic
display
2 Press until you hear beep
sound, then write down the
error code
4 Turn the unit off and
reveal the error code to
authorised dealer
Abnormality/Protection control
Abnormal wiring or piping
H 41
connection
H 50 Ventilation fan motor locked
H 51 Ventilation fan motor locked
Left-right limit switch fi xing
H 52
abnormality
H 58 Indoor gas sensor abnormality
H 59 Eco sensor abnormality
Outdoor high pressure sensor
H 64
abnormality
H 67 nanoe abnormality
H 70 Light sensor abnormality
DC cooling fan inside control board
H 71
abnormality
H 72 Abnormality tank temperature sensor
H 97 Outdoor fan motor mechanism lock
H 98 Indoor high pressure protection
H 99 Indoor operating unit freeze protection
F 11 4-way valve switching abnormality
F 16 Total running current protection
Indoor standby units freezing
F 17
abnormality
F 18 Dry circuit blocked abnormality
F 87 Control box overheat protection
Power factor correction (PFC)
F 90
circuit protection
F 91 Refrigeration cycle abnormality
Outdoor compressor abnormal
F 93
revolution
Compressor discharge pressure
F 94
overshoot protection
Outdoor cooling high pressure
F 95
protection
Power transistor module overheating
F 96
protection
F 97 Compressor overheating protection
F 98 Total running current protection
Outdoor direct current (DC) peak
F 99
detection