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Service Check Function
SiEN18-622
318
Troubleshooting
<Selection of setting item>
<Monitor mode>
<Confirmation of malfunction 1>
<Confirmation of malfunction 2>
<Confirmation of malfunction 3>
Detail
description
on next
page.
<Confirmation of malfunction 4>
To enter the monitor mode, push the
MODE (BS1) button when in “Setting
mode 1”.
Push the SET (BS2) button and set
the LED display to a setting item.
Push the RETURN (BS3) button
once to display "First digit" of
malfunction code.
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
Push the SET (BS2) button once to
display "malfunction location".
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
Push the RETURN (BS3) button and
switches to the initial status of
“Monitor mode”.
Push the MODE (BS1) button and
returns to “Setting mode 1”.
Contents of malfunction
Malfunction
code
Open phase/Power supply imbalance
Imbalance of inverter power supply
voltage
P1
Faulty temperature sensor of inverter
radiation fin
Faulty thermistor of inverter fin
P4
Gas shortage
Gas shortage alarm
U0
Abnormal power supply voltage
Insufficient Inverter voltage
U2
Faulty charge of capacitor in main inverter circuit
Malfunction due to SP-PAM
Malfunction due to P-N short circuit
No implementation of test-run
U3
Transmission error between indoor
and outdoor unit
I/O transmission error
U4
I/O transmission error
Transmission error of other system
Indoor unit system abnormal in other
system or other indoor unit system
abnormal in own system
U9
Erroneous field setting
System transmission malfunction
UA
Overconnection malfunction of indoor units
Malfunction of field setting
Refrigerant abnormal
Connection error (BP unit)
Faulty system malfunction
Wiring error (Auto-address error)
UH
Conflict in wiring and piping, no setting
for system
Conflict in wiring and piping
UF
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 ...