Panasonic S-71WF3E - Page 245

245
Diagnosis
display
(Indoor
model:
CS-XX /
S-XX /
WH-XX)
Abnormality
or
protection
control
LED
6
LED
5
LED
4
LED
3
LED
2
LED
1
A
bnormality
judgement
Protection
operation
Problem Check location
H36 / F23 /
H51
Outdoor gas pipe
temperature
sensor
abnormality
○ ○
Continuous
for 5s
Heating
protection
operation
only
Outdoor gas pipe
temperature
sensor open or
short circuit
 Outdoor gas
pipe
temperature
sensor lead wire
and connecto
r
H37 / F24 /
H53
Outdoor liquid
pipe temperature
sensor
abnormality
○ ○ ○
Continuous
for 5s
Cooling
protection
operation
only
Outdoor liquid
pipe temperature
sensor open or
short circuit
 Outdoor liquid
pipe
temperature
sensor lead wire
and connecto
r
H64 / P04 /
F27
Outdoor high
pressure sensor
abnormality
○ ○
Continuous
for 1
minute
- High pressure
sensor open
circuit during
compressor stop
 High pressure
sensor
 Lead wire and
connecto
r
H89 / F16 /
H64
Compressor
discharge
temperature
sensor
abnormality
○ ○ ○
4 times
happens
within 20
minutes
- High pressure
sensor open or
short circuit
 High pressure
sensor
 Lead wire and
connector
H97 / P22 /
F15
Outdoor fan motor
mechanism lock
○ ○ ○
2 times
happen
within 30
minutes
- Outdoor fan motor
lock or feedback
abnormal
 Outdoor fan
motor lead wire
and connector
 Fan motor lock
or block
H98 / - /
H98
Indoor high
pressure
protection
○ ○ ○
- - Indoor high
pressure
protection
(Heating)
 Check indoor
heat exchanger
 Air filter dirty
 Air circulation
short circuit
H99 / - /
H99
Indoor operating
unit freeze
protection
○ ○ ○
- - Indoor freeze
protection
(Cooling)
 Check indoor
heat exchanger
 Air filter dirty
 Air circulation
short circuit
H64 Outdoor high
pressure switch
abnormality
○ ○
- - High pressure
switch open circuit
during
compressor stop
 High pressure
switch lead wire,
connector
CN-PSW1
H89 High pressure
sensor abnormal
○ ○ ○
- - High pressure
sensor open or
short circuit
 High pressure
sensor lead
wire, connector
CN-HPS
F11 / L18 /
F25
4-way valve
switching
abnormality
○ ○ ○ ○
4 times
happen
within 30
minutes
- 4-way valve
switching
abnormal
 4-way valve
 Lead wire and
connector.
F17 / P14 /
F33
Indoor standby
units freezing
abnormality
○
3 times
happen
within 40
minutes
- Wrong wiring and
connecting pipe,
expansion valve
leakage.
 Check
indoor/outdoor
connection wire
and pipe
 Indoor heat
exchanger
sensor lead wire
and connector
 Expansion valve
lead wire and
connector.
F90 / H02 /
F41
Power factor
correction (PFC)
circuit protection
○ ○
4 times
happen
within 20
minutes
- Power factor
correction circuit
abnormal
 Outdoor PCB
faulty
F91 / P15 /
F24
Refrigeration
cycle abnormality
○ ○
4 times
happen
within 60
minutes
- Refrigeration
cycle abnormal
 Insufficient
refrigerant or
valve close