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SiUS28-902_a
Troubleshooting by Indication on the Remote Controller
Troubleshooting
120
Troubleshooting
∗
1: Voltage measurement point
∗
2: Refer to
Pressure Sensor, Pressure / Voltage Characteristics
table on P.168.
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.
The
relationship
b
et
w
een the
*
1
V
L and lo
w
press
u
re is
normal (see
*
2)
w
hen
v
oltage
is meas
u
red
b
et
w
een X1
8
A pins
(2) and (3) of o
u
tdoor
u
nit
P.C.B. (A1P)
(see
*
1).
Replace the lo
w
press
u
re sensor.
Connect the lo
w
press
u
re sensor
property and restart system.
N
O
N
O
Replace the o
u
tdoor
u
nit P.C.B.
(A1P).
YES
YES
The lo
w
press
u
re sensor is
connected to X1
8
A (
b
l
u
e)
of o
u
tdoor
u
nit P.C.B.
(A1P).
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...