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Troubleshooting by Indication on the Remote Controller
SiUS28-902_a
107
Troubleshooting
Troubleshooting
Check the installation
conditions.
Is the stop
v
al
v
e open?
N
O
Is the U
VW
w
iring
normal?
N
O
N
O
N
O
N
O
Is high
differential press
u
re starting?
(72psi or more)
YES
YES
YES
Check and see
w
hether compressor is
short-circ
u
ited or
gro
u
nded.
YES
YES
Are in
v
erter
o
u
tp
u
t
v
oltages the same
for 3 phases?
Does lo
w
or
high press
u
re
v
ary
e
v
en instantaneo
u
sly
w
hen
restarting
compressor?
YES
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.
Open the stop
v
al
v
e.
Connect correctly.
Remedy the ca
u
se.
Replace the compressor.
Replace the in
v
erter P.C.B.
(A1P).
Replace the compressor.
N
O
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...