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Troubleshooting by Indication on the Remote Controller
SiUS28-902_a
111
Troubleshooting
3.20 “
F3
” Outdoor Unit: Abnormal Discharge Pipe
Temperature
Remote
Controller
Display
F3
Applicable
Models
RZQ18~30PVJU
Method of
Malfunction
Detection
Abnormality is detected according to the temperature detected by the discharge pipe
temperature sensor.
Malfunction
Decision
Conditions
When the discharge pipe temperature rises to an abnormally high level
When the discharge pipe temperature rises suddenly
Supposed
Causes
Faulty discharge pipe temperature sensor
Faulty connection of discharge pipe temperature sensor
Faulty outdoor unit P.C.B.
Troubleshooting
Refer to “Thermistor Resistance / Temperature Characteristics” table on P.166.
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.
Discharge
pipe temperat
u
re is
24
8
°F or higher
w
hen the
u
nit stops
b
y
malf
u
nction.
P
u
ll o
u
t the discharge pipe
thermistor from the o
u
tdoor
P.C.B., and then make
meas
u
rement of resistance
u
sing a m
u
ltiple meter.
Are
the characteristics
of the discharge pipe
thermistor normal?
(3.5
~
400k
Ω
)
*
Replace the o
u
tdoor
u
nit P.C.B.
(A1P).
Replace the discharge pipe
thermistor.
N
O
N
O
Refrigerant shortage, compression
defect, etc. Defect of the refrigerant
system.
YES
YES
Summary of Contents for SkyAir FCQ18PVJU
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