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Service Check Function
SiEN18-622
316
Troubleshooting
2.6
Malfunction Code Indication by Outdoor Unit PCB
<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
In-phase malfunction of DIII-NET
Detection of DIII-NET
E1
Abnormal discharge pressure
HPS activated
E3
Abnormal suction pressure
Abnormal Pe
E4
Compressor lock
Detection of INV compressor lock
E5
Over load, over current,
abnormal lock of outdoor unit fan motor
Detection of DC fan 1 motor lock
E7
Detection of DC fan 2 motor lock
Malfunction of electronic expansion
valve
EV1
E9
EV3
Faulty sensor of outdoor air
temperature
Faulty Ta sensor (short)
H9
Abnormal discharge pipe temperature
Abnormal Td
F3
Abnormal heat exchanger temperature Refrigerant over charge
F6
Faulty sensor of discharge pipe
temperature
Faulty Tdi sensor (short)
J3
Faulty sensor of suction pipe
temperature
Faulty Ts1 sensor (short)
J5
Faulty Ts2 sensor (short)
Faulty sensor of heat exchanger
temperature
Faulty Tb sensor (short)
J6
Malfunction of the liquid pipe
temperature sensor
Faulty TI sensor (short)
J7
Faulty sensor of subcool heat
exchanger temperature
Faulty Tsh sensor (short)
J9
Faulty sensor of discharge pressure
Faulty Pc sensor (short)
JA
Faulty sensor of suction pressure
Faulty Pe sensor (short)
JC
Faulty Inverter PC board
Faulty IPM
L1
Abnormal Current sensor offset
Abnormal IGBT
Faulty Current sensor
Abnormal SP-PAM over-voltage
Inverter radiation fin temperature rising Over heating of inverter radiation fin temperature
L4
DC output over current
Inverter instantaneous over current
L5
Electronic thermal
Electronic thermal switch 1
L8
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Limit time)
Stall prevention (Current increasing)
L9
Stall prevention (Faulty start up)
Abnormal wave form in startup
Out-of-step
Transmission error between inverter
and outdoor unit
Inverter transmission error
LC
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 ...