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Troubleshooting by Indication on the Remote Controller
SiUS28-902_a
125
Troubleshooting
Troubleshooting
Caution
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 co
u
ld
b
e damaged.
O
u
tp
u
t c
u
rrent check
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.
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.
N
O
Replace the o
u
tdoor
u
nit P.C.B.
(A1P).
YES
N
O
Reset and restart.
N
O
The
secondary
c
u
rrent of the in
v
erter
is higher than X16.
8
A,
260sec. for
each phase.
Replace the compressor.
N
O
YES
Compressor
inspection The
compressor
'
s coil is
disconnected.
YES
YES
Disconnect the 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.
After t
u
rning
on again, "
L8
"
b
links
again.
Summary of Contents for SkyAir FCQ18PVJU
Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...
Page 44: ...Other Control SiUS28 902_a 37 Function...
Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...
Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...