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SiUS28-902_a
Troubleshooting by Indication on the Remote Controller
Troubleshooting
88
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.
Replace the float s
w
itch.
Modify the float s
w
itch
'
s
connection and t
u
rn on again.
Connect the drain p
u
mp and
t
u
rn on again.
Check the drain piping for
clogging or
u
p
w
ard slope, etc.
Replace the indoor
u
nit P.C.B.
Replace the drain p
u
mp or
check for dirt, etc.
Connect either a short circ
u
it
connector or float s
w
itch and
t
u
rn on again.
YES
YES
YES
YES
YES
Defect of indoor
u
nit P.C.B.
Loose connection of connector.
N
O
N
O
N
O
YES
YES
N
O
N
O
YES
N
O
YES
N
O
N
O
The float
s
w
itch is connected to
X
8
A (or X15A) of the indoor
u
nit
P.C.B.
N
O
The drain
p
u
mp
w
orks
w
hen
the po
w
er s
u
pply is reset
for the indoor
u
nit.
The drain
p
u
mp is connected
to X25A or terminals Y1
and Y2 of the
indoor
u
nit
P.C.B.
The
v
oltage
of terminals Y1
and Y2 or X25A is
20
8~
230
V
(
w
ithin
5 min
u
tes of resetting
the po
w
er
s
u
pply).
W
ater
bu
ilds
u
p
in the drain pan.
The float
s
w
itch contact is
forming a short circ
u
it
(contin
u
ity check
w
ith X
8
A (or X15A)
disconnected)
A short
circ
u
it connector is
connected to
X
8
A (X15A).
Pro
v
ide 20
8~
230
V
po
w
er
s
u
pply.
YES
N
O
Is po
w
er s
u
pply
20
8~
230
V
pro
v
ided?
Becomes
normal
w
hen X
8
A (or X15A)
of the indoor
u
nit P.C.B.
is short circ
u
ited
The float s
w
itch
f
u
nctions normally.
FCQ
only
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...