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Troubleshooting for Outdoor Unit
SiBE18-821_C
402
Troubleshooting
7.17 Outdoor Unit PCB Abnormality
Remote
Controller
Display
L1
Method of
Malfunction
Detection
The error is detected based on the current value during waveform output before starting
compressor.
The error is detected based on the value from current sensor during synchronous operation
when starting the unit.
Malfunction
Decision
Conditions
Overcurrent (OCP) flows during waveform output.
Malfunction of current sensor during synchronous operation
IPM failure
Supposed
Causes
Defective main PCB (A1P)
•
IPM failure
•
Current sensor failure
•
Failure of IGBT or drive circuit
Troubleshooting
Turn OFF the power supply
once and then turn it ON
again.
Does it return
normally?
External factors (noise,
etc.) other than
malfunction.
Replace the main PCB
(A1P).
(R13035)
YES
NO
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание Super Multi Plus E-Series FTXG25EV1BW
Страница 1: ...Service Manual E Series SiBE18 821_C Applied Models Super Multi Plus Heat Pump...
Страница 13: ...SiBE18 821_C List of Functions 1 Part 1 List of Functions 1 Functions 2...
Страница 264: ...SA Indoor Unit FFQ FCQ FDBQ FBQ FHQ Series SiBE18 821_C 252 Operation Manual 2 Start 5s 5s 5s 5s 5s End...
Страница 471: ...SiBE18 821_C BP Unit Removal Procedure 459 Step Procedure Points Clamps Q0529...
Страница 491: ...Revision History Date News No Contents 2010 11 9 M 10013 Correction of troubleshooting flowchart AF for SkyAir models...