SiBE37-701
Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting
381
[Check 14] List of inverter-related malfunction codes
Code
Name
Condition for determining malfunction
Major cause
Comp
ressor cu
rrent
L5
Instantaneous overcurrent of
inverter compressor
• Inverter output current exceeds 32.3A even
instantaneously.
• Liquid sealing
• Faulty compressor
• Faulty inverter PC board
L8
Overcurrent of inverter
compressor (Electronic thermal)
• Compressor overload running
An overcurrent of 19.0A or more continues for
a period of 5 consecutive seconds or that of
16.1A or more continues for a period of 260
consecutive seconds.
• The inverter loses synchronization.
• Backflow of compressor liquid
• Sudden changes in loads
• Disconnected compressor wiring
• Faulty inverter PC board
Protection d
e
vice and others
L1
Faulty inverter PC board
• No output is given.
• Faulty heavy current part of
compressor
L9
Faulty startup of inverter
compressor
• The compressor motor fails to start up.
• Liquid sealing or faulty
compressor
• Excessive oil or refrigerant
• Faulty inverter PC board
E5
Inverter compressor lock
• The compressor is in the locked status (does
not rotate).
• Faulty compressor
L4
Radiator fin temperature rise
• The radiator fin temperature reaches 87°C or
more (while in operation).
• Malfunction of fan
• Running in overload for an
extended period of time
• Faulty inverter PC board
U2
Power supply voltage error
• The inverter power supply voltage is high or
low.
• Power supply error
• Faulty inverter PC board
P1
Imbalanced power supply
• Power supply voltages get significantly
imbalanced among three phases.
• Power supply error (imbalanced
voltages of 2% or more)
• Faulty inverter PC board
• Dead inverter PC board
LC
Transmission error (between
inverter PC board and control PC
board)
• With the outdoor unit PC board, no
communications are carried out across control
PC board - inverter PC board - fan PC board.
• Broken wire in communication
line
• Faulty control PC board
• Faulty inverter PC board
• Faulty fan PC board
PJ
PC board mismatching
• Any PC board of specification different from
that of the product is connected.
• PC board of different
specification mounted
P4
Faulty fin thermistor
• The fin thermistor gets short-circuited or open. • Faulty fin thermistor
Содержание VRV III REYQ10PY1B
Страница 1: ...REYQ8 48PY1B R 410A Heat Recovery 50Hz SiBE37 701 ...
Страница 111: ...Refrigerant Flow for Each Operation Mode SiBE37 701 100 Refrigerant Circuit ...
Страница 252: ...SiBE37 701 Troubleshooting by Remote Controller Troubleshooting 241 ...
Страница 395: ...Piping Diagrams SiBE37 701 384 Appendix 1 Piping Diagrams 1 1 Outdoor Unit REYQ8P 10P 12P 3D058154B S1NPH S2NPL ...
Страница 396: ...SiBE37 701 Piping Diagrams Appendix 385 REYQ14P 16P 3D058153B S2NPL S1NPH ...
Страница 397: ...Piping Diagrams SiBE37 701 386 Appendix REMQ8P 3D057743 ...
Страница 398: ...SiBE37 701 Piping Diagrams Appendix 387 REMQ10P 12P 3D057742 ...
Страница 399: ...Piping Diagrams SiBE37 701 388 Appendix REMQ14P 16P 3D057741 ...
Страница 400: ...SiBE37 701 Piping Diagrams Appendix 389 1 2 Indoor Unit FXFQ P ...
Страница 405: ...Piping Diagrams SiBE37 701 394 Appendix 1 3 BS Unit 4D057985A ...
Страница 414: ...SiBE37 701 Wiring Diagrams for Reference Appendix 403 2 3 Indoor Unit FXFQ20P 25P 32P 40P 50P 63P 80P 100P 125PVEB ...
Страница 415: ...Wiring Diagrams for Reference SiBE37 701 404 Appendix FXZQ20M 25M 32M 40M 50MV1 ...
Страница 416: ...SiBE37 701 Wiring Diagrams for Reference Appendix 405 FXCQ20M 25M 32M 63MV3 ...
Страница 417: ...Wiring Diagrams for Reference SiBE37 701 406 Appendix FXCQ40M 50M 80M 125MV3 ...
Страница 420: ...SiBE37 701 Wiring Diagrams for Reference Appendix 409 FXDQ20M 25MV3 ...
Страница 421: ...Wiring Diagrams for Reference SiBE37 701 410 Appendix FXSQ20M 25M 32M 40M 50M 63MV3 ...
Страница 422: ...SiBE37 701 Wiring Diagrams for Reference Appendix 411 FXSQ80M 100M 125MV3 ...
Страница 447: ...Example of connection SiBE37 701 436 Appendix ...
Страница 453: ...Method of Checking the Inverter s Power Transistors and Diode Modules SiBE37 701 442 Appendix ...
Страница 467: ...SiBE37 701 iv Index ...
Страница 471: ...SiBE37 701 viii Drawings Flow Charts ...