SiMX042215E
Troubleshooting
Part 6 Service Diagnosis
65
Troubleshooting
Correct the po
w
er s
u
pply.
Replace the o
u
tdoor
u
nit PCB (main PCB).
Check for s
u
ch factors for a
long term.
(R24749)
Caution
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.
N
O
N
O
YES
N
O
YES
YES
YES
Reconnect the harness.
Check the po
w
er s
u
pply
v
oltage.
Check the connection of the
compressor harness.
T
u
rn on the po
w
er.
Dist
u
r
b
ance factors
∗
N
oise
∗
Po
w
er s
u
pply distortion
(Preca
u
tion
b
efore t
u
rning on the po
w
er
again) Make s
u
re the po
w
er has
b
een off
for at least 30 seconds.
Replace the indoor
u
nit PCB (control PCB).
System
restarted? (Repeat a fe
w
times.)
Error
again
w
ithin 3 min
u
tes
after t
u
rning on the
po
w
er?
Loose or
disconnected?
N
O
YES
N
O
Replace the o
u
tdoor fan motor
and the o
u
tdoor
u
nit PCB
(main PCB).
Does the
o
u
tdoor fan rotate
smoothly?
Is the
v
oltage fl
u
ct
u
ation
w
ithin ±10% from the
rated
v
al
u
e?
