SiSG121917E
Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis
168
Reference
Reference
Reference
Reference
Check No.15
Refer to P.173
Check No.17
Refer to P.176
Check No.18
Refer to P.176
Check No.22
Refer to P.179
(R24912)
N
O
YES
N
O
YES
N
O
YES
YES
N
O
Check No. 22
T
u
rn off the po
w
er, and reconnect
the harnesses. T
u
rn on the po
w
er
again and start operation.
Check the po
w
er s
u
pply
v
oltage.
Check the po
w
er mod
u
le.
Correct the po
w
er s
u
pply.
Replace the compressor.
Correct the po
w
er s
u
pply
or replace the o
u
tdoor
u
nit
PCB (main PCB).
Replace the o
u
tdoor
u
nit
PCB (main PCB).
Any LED off?
N
ormal?
Short circ
u
it
or
w
ire
b
reakage
b
et
w
een compressor
'
s coil
phases?
Check the discharge
press
u
re.
Go to
Check No. 18
.
A
Contin
u
ed from the
pre
v
io
u
s page
Is the
v
oltage
fl
u
ct
u
ation
w
ithin
±10
%
from the rated
v
al
u
e?
