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SiBE37-701
Troubleshooting by Indication on the Remote Controller
Troubleshooting
331
Troubleshooting
Power ON
Power OFF
<Multi>
<Single>
Single : A5P, A8P
Multi
: A4P
Replace the inverter PC board.
∗
If the PC board replaced is badly
damaged, the compressor is
likely to get faulty. To make sure,
recheck the compressor.
Single : A6P, A7P or A9P
Multi
: A5P/A7P
Replace the fan driver PC
board.
∗
If the PC board replaced is badly
damaged, the fan motor is likely
to get faulty. To make sure,
recheck the compressor.
Recheck for the power supply. If
there is no problem with the power
supply, replace the A4P, A7P or
A3P noise filter PC board.
If the malfunction recurs, replace
the inverter PC board.
Recheck for the power supply. If
there is no problem with the power
supply, replace the A5P, A8P or
A4P inverter PC board.
∗
If the PC board replaced is badly
damaged, compressor is likely to
get faulty. To make sure, recheck
the compressor.
Check the harness, and then
replace it if necessary.
End of measures:
The malfunction may temporarily
result from on-site causes.
Causes: Instantaneous power
failure (open phase), noises, or
else.
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Check for connector connections: Remove
and insert the connectors shown below.
Furthermore, check the connectors for
terminal conditions and continuity.
•
X1M power receiving terminal
⇔
X400A A3P
•
A3P X401A
⇔
X10A A4P
•
A1P X28A
⇔
X6A A4P
•
A4P X61A
⇔
X402A A3P
•
A4P X1A
⇔
X403A A3P
•
A4P P1,P2
⇔
Reactor terminal L1R
•
A4P P3,N3
⇔
P1,N1 A5P
•
A5P P2,N2
⇔
P1,N1 A7P
Check for connector connections: Remove
and insert the connectors shown below.
Furthermore, check the connectors for
terminal conditions and continuity.
•
X1M power receiving terminal
⇔
X400A A3P
•
A4P or A7P X401A
⇔
X10A A5P or A8P
•
A1P or A3P X28A
⇔
X6A A5P or A8P
•
A5P or A8P X61A
⇔
X402A A4P or A7P
•
A5P or A8P X1A
⇔
X403A A4P or A7P
•
A5P or A8P P1,P2
⇔
Reactor terminal L1R
•
A5P or A8P P3,N3
⇔
P1,N1 A5P
•
A6P P2,N2
⇔
P1,N1 A7P
Has the
inverter PC board caused
damage?
Has the
fan driver caused
damage?
Stop (standby)
when the compressor
starts up.
The "
U2
"
malfunction recurs.
Stop (standby)
before the fan rotates.
Turn ON the power supply.
A
Summary of Contents for VRV III REYQ8PY1B
Page 1: ...REYQ8 48PY1B R 410A Heat Recovery 50Hz SiBE37 701...
Page 111: ...Refrigerant Flow for Each Operation Mode SiBE37 701 100 Refrigerant Circuit...
Page 252: ...SiBE37 701 Troubleshooting by Remote Controller Troubleshooting 241...
Page 396: ...SiBE37 701 Piping Diagrams Appendix 385 REYQ14P 16P 3D058153B S2NPL S1NPH...
Page 397: ...Piping Diagrams SiBE37 701 386 Appendix REMQ8P 3D057743...
Page 398: ...SiBE37 701 Piping Diagrams Appendix 387 REMQ10P 12P 3D057742...
Page 399: ...Piping Diagrams SiBE37 701 388 Appendix REMQ14P 16P 3D057741...
Page 400: ...SiBE37 701 Piping Diagrams Appendix 389 1 2 Indoor Unit FXFQ P...
Page 405: ...Piping Diagrams SiBE37 701 394 Appendix 1 3 BS Unit 4D057985A...
Page 415: ...Wiring Diagrams for Reference SiBE37 701 404 Appendix FXZQ20M 25M 32M 40M 50MV1...
Page 416: ...SiBE37 701 Wiring Diagrams for Reference Appendix 405 FXCQ20M 25M 32M 63MV3...
Page 417: ...Wiring Diagrams for Reference SiBE37 701 406 Appendix FXCQ40M 50M 80M 125MV3...
Page 420: ...SiBE37 701 Wiring Diagrams for Reference Appendix 409 FXDQ20M 25MV3...
Page 421: ...Wiring Diagrams for Reference SiBE37 701 410 Appendix FXSQ20M 25M 32M 40M 50M 63MV3...
Page 422: ...SiBE37 701 Wiring Diagrams for Reference Appendix 411 FXSQ80M 100M 125MV3...
Page 447: ...Example of connection SiBE37 701 436 Appendix...
Page 453: ...Method of Checking the Inverter s Power Transistors and Diode Modules SiBE37 701 442 Appendix...
Page 467: ...SiBE37 701 iv Index...