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Troubleshooting for Outdoor Unit
SiEN18-622
368
Troubleshooting
7.7
Abnormal Discharge Pipe Temperature
Remote Control
Display
F3
Applicable
Models
AII outdoor unit models
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 PCB
Troubleshooting
∗
Refer to “Thermistor Resistance / Temperature Characteristics” table on P407.
(V3068)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Discharge
pipe temperature is
120˚C or higher when the
unit stop by
malfunction.
Pull out the discharge pipe
thermistor from the outdoor
PCB, and then make
measurement of resistance
using a multiple meter.
Replace outdoor unit PC board
(A1P).
Replace the discharge pipe
thermistor.
NO
NO
Refrigerant shortage, compression
defect, etc. Defect of the refrigerant
system.
YES
YES
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...