SiSG121917E
Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis
156
Reference
7.14 System Shutdown due to Temperature Abnormality in
Compressor
Error Code
F8
Outdoor Unit LED
Display
A
j
1
h
2
h
3
i
4
i
5
h
Method of Error
Detection
Operation is halted when the temperature detected by the discharge pipe thermistor exceeds
the determined limit.
Error Decision
Conditions
Temperature exceeds the detection threshold of 127.5°C during forced cooling operation.
Supposed
Causes
Abnormal operation due to air intrusion
Defective discharge pipe thermistor
Troubleshooting
Check No.01
Refer to P.169
YES
(R23655)
N
O
OK
N
G
Caution
Replace the o
u
tdoor
u
nit.
#
Replace
b
oth the discharge pipe
thermistor and the o
u
tdoor
u
nit
PCB (main PCB).
Replace the o
u
tdoor
u
nit.
#
A
b
normal
deformation of piping in the
o
u
tdoor
u
nit
Check No. 01
Check the discharge pipe
thermistor
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.
#
Replace the
u
nit as directed in the installation man
u
al, making s
u
re that air does not intr
u
de
into the refrigerant pipings.
