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SiUS28-902_B
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
131
Troubleshooting
The
secondary
c
u
rrent of the in
v
erter is
higher than 14.
8
A, 260sec.
for each phase.
Compressor
inspection. The
compressor
'
s coil is
disconnected.
In
v
erter
o
u
tp
u
t
v
oltage
check. In
v
erter
o
u
tp
u
t
v
oltage is not
b
alanced (
N
ormal if
w
ithin
±
5
V
). M
u
st
b
e
meas
u
red
w
hen
fre
qu
ency is
sta
b
le.
After t
u
rning
O
N
again, "
L8
"
b
links
again.
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector or parts may
b
e damaged.
O
u
tp
u
t c
u
rrent check
Caution
Compressor o
v
erload.
Inspection of the compressor and
refrigerant system is re
qu
ired.
Compressor inspection.
Inspect according to the diagnosis
proced
u
re for odd noises,
v
i
b
ration
and operating stat
u
s of the
compressor.
Replace the o
u
tdoor
u
nit PCB
(A1P).
Reset and restart.
Replace the compressor.
Disconnect the connection
b
et
w
een the compressor and
in
v
erter. Make the po
w
er
transistor check mode setting
O
N
b
y ser
v
ice mode.
YES
N
O
YES
N
O
N
O
YES
N
O
YES