Troubleshooting for Outdoor Unit SiUS181631EA
250 Troubleshooting
7.22 High Voltage of Capacitor in Main Inverter Circuit
Error Code
P1
Method of Error
Detection
The error is detected according to the voltage waveform of main circuit capacitor built in the
inverter.
Error 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 capacitor
C4 properly connected?
Connect the capacitor C4.
Replace the main PCB
(A1P).
(R23971)
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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