Troubleshooting by Remote Controller
Si39-306
146
Troubleshooting
Malfunction code indication by outdoor unit PCB
<Selection of setting item>
<Confirmation of malfunction 1>
To enter the monitor mode, push the
MODE button (BS1) when in
“Setting mode 1”.
Push the SET button (BS2) and set
the LED display to a setting item.
Push the RETURN button (BS3)
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET button (BS2) once to
display "Second digit" of malfunction
code.
Push the RETURN button (BS3) and
switches to the initial status of
“Monitor mode”.
∗
Push the MODE button (BS1) and
returns to “Setting mode 1”.
Contents of malfunction
Malfunction
code
HPS activated
Abnormal Pe
Detection of INV compressor lock
Detection of STD1 compressor lock
Detection of STD2 compressor lock
Instantaneous over current of DC fan motor
Detection of DC fan motor lock
EV1
EV2
EV3
Abnormal position signal of DC fan motor
Faulty Ta sensor
Abnormal Td
Refrigerant over charge
Faulty CT1 sensor
Faulty CT2 sensor
Faulty Tdi sensor
Faulty Tds1 sensor
Faulty Tds2 sensor
Faulty Tg1, Tg2 sensor
Faulty Tg2 sensor
Faulty Ts sensor
Faulty Tb sensor
Faulty Tl sensor
Faulty To sensor
Faulty Tsh sensor
Faulty Pc sensor
Faulty Pe sensor
Over heating of inverter radiation fin temperature
Inverter instantaneous over current
Electronic thermal switch 1
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Current increasing)
Stall prevention (Faulty startup)
Abnormal wave form in startup
Out-of-step
Inverter transmission error
Imbalance of inverter power supply voltage
Faulty thermistor of inverter box
Faulty thermistor of inverter fin
Incorrect combination of inverter and fan driver
Gas shortage alarm
Reverse phase error
Insufficient inverter voltage
Inverter open phase (phase T)
Charging error of capacitor in inverter main circuit
I/O transmission error
O/O transmission error
Indoor unit system malfunction in other system or
other unit of own system
Abnormal connection with excessive number of indoor units
Conflict of refrigerant type in indoor units
Incorrect wiring (Auto address error)
Malfunction of multi level converter, abnormality in
conflict check
E3
E4
E5
E6
E7
E9
H7
H9
HC
HJ
HF
F3
F6
J2
J3
J4
J5
J6
J7
J8
J9
JA
JC
L4
L5
L8
L9
LC
P1
P3
P4
PJ
U0
U1
U2
U3
U4
U7
U9
UA
UH
UJ
UF
Abnormal discharge pressure
Abnormal suction pressure
Compressor lock
Activation of OC
Over load, over current,
abnormal lock of outdoor unit fan motor
Malfunction of electronic expansion valve
Abnormal position signal of outdoor unit fan motor
Faulty sensor of outdoor air temperature
Faulty sensor of heat storage unit
Abnormality in water system of heat storage unit
Transmission error between heat storage unit and controller
Abnormal discharge pipe temperature
Abnormal heat exchanger temperature
Faulty current sensor
Faulty sensor of discharge pipe temperature
Faulty sensor of heat exchanger gas pipe temperature
Faulty sensor of suction pipe temperature
Faulty sensor of heat exchanger temperature
Faulty sensor of receiver temperature
Faulty sensor of oil pressure equalizing pipe temperature
Faulty sensor of subcool heat exchanger temperature
Faulty sensor of discharge pressure
Faulty sensor of suction pressure
Inverter radiation fin temperature rising
DC output over current
Electronic thermal switch
Stall prevention (Limit time)
Transmission error between inverter and outdoor unit
Open phase/Power supply imbalance
Faulty temperature sensor inside switch box
Faulty temperature sensor of inverter radiation fin
Incorrect combination of inverter and fan driver
Gas shortage
Reverse phase
Abnormal power supply voltage
No implementation of test-run
Transmission error between indoor and outdoor unit
Transmission error between outdoor units, transmission error
between thermal storage units, duplication of IC address
Transmission error of other system
Erroneous on-site setting
Faulty system function
Transmission error in accessory devices, conflict
in wiring and piping, no setting for system
<Confirmation of malfunction 3>
Push the SET button (BS2) once to
display "master or slave1 or slave2"
and "malfunction location".
Detail
description
on next
page.
Summary of Contents for VRV II REYQ8MY1B
Page 19: ...Model Selection Si39 306 8 General Information...
Page 150: ...Si39 306 Troubleshooting by Remote Controller Troubleshooting 139...
Page 250: ...Si39 306 Piping Diagrams Appendix 239 REYQ14MY1B REYQ16MY1B 4D042070A...
Page 252: ...Si39 306 Piping Diagrams Appendix 241 1 3 BS Unit BSVQ100MV1 BSVQ160MV1 BSVQ250MV1 4D042115...
Page 254: ...Si39 306 Wiring Diagrams for Reference Appendix 243 REYQ14MY1B REYQ16MY1B 3D038572...
Page 256: ...Si39 306 Wiring Diagrams for Reference Appendix 245 REYQ18 20 22 24 26 28 30 32MY1B 3D043436...
Page 257: ...Wiring Diagrams for Reference Si39 306 246 Appendix REYQ34 36 38 40 42 44 46 48MY1B 3D043437...
Page 259: ...Wiring Diagrams for Reference Si39 306 248 Appendix FXCQ40M 50M 80M 125MVE 3D039557A...
Page 260: ...Si39 306 Wiring Diagrams for Reference Appendix 249 FXZQ20M 25M 32M 40M 50MVE 3D038359...
Page 262: ...Si39 306 Wiring Diagrams for Reference Appendix 251 FXKQ25M 32M 40M 63MVE 3D039564A...
Page 264: ...Si39 306 Wiring Diagrams for Reference Appendix 253 FXMQ40M 50M 63M 80M 100M 125MVE 3D039620A...
Page 265: ...Wiring Diagrams for Reference Si39 306 254 Appendix FXMQ200M 250MVE 3D039621A...
Page 266: ...Si39 306 Wiring Diagrams for Reference Appendix 255 FXHQ32M 63M 100MVE 3D039801C...
Page 267: ...Wiring Diagrams for Reference Si39 306 256 Appendix FXAQ20M 25M 32MVE 40M 50M 63MVE 3D034206A...
Page 283: ...REFNET Pipe System Si39 306 272 Appendix...
Page 284: ...Si39 306 Appendix 273 DPSOH RI RQQHFWLRQ 5 7 SH 5 4 0 HDW 5HFRYHU...
Page 285: ...Si39 306 274 Appendix...
Page 291: ...Method of Replacing The Inverter s Power Transistors and Diode Modules Si39 306 280 Appendix...
Page 305: ...Si39 306 iv Index...