SiUS041111
Troubleshooting
Service Diagnosis
97
Troubleshooting
Check No.01
Refer to P.116
Check No.12
Refer to P.118
Check No.14
Refer to P.119
Replace the defecti
v
e
thermistor.
Replace the electronic
expansion
v
al
v
e or the coil.
Refer to the refrigerant line
check proced
u
re.
Replace the o
u
tdoor
u
nit
PCB.
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Check No. 01
Check the thermistors.
Check No. 12
Check the electronic
expansion
v
al
v
e.
(R14412)
Caution
N
G
OK
OK
OK
N
G
N
G
• Refrigerant shortage
• Fo
u
r-
w
ay
v
al
v
e
•
W
ater mixed
• Stop
v
al
v
e
• Discharge pipe thermistor
• O
u
tdoor heat exchanger thermistor
• O
u
tdoor temperat
u
re thermistor
Check No. 14
Check the refrigerant
line.
