SiBE18-821_C Troubleshooting for Outdoor Unit
Troubleshooting 407
7.22 High Voltage of Capacitor in Main Inverter Circuit
Remote
Controller
Display
P1
Method of
Malfunction
Detection
The error is detected according to the voltage waveform of main circuit capacitor built in the
inverter.
Malfunction
Decision
Conditions
When the voltage waveform becomes identical with the waveform of the power supply open
phase
Supposed
Causes
îš„
Defective main circuit capacitor
îš„
Improper main circuit wiring
îš„
Defective main PCB (A1P)
Troubleshooting
Check for the connection of
the main circuit capacitor
"
C4".
Is the "C4"
properly connected?
Connect the "
C4".
Replace the main PCB
(A1P).
(R13040)
NO
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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