High Voltage Of Capacitor In Main Inverter Circuit - Daikin E-Series Service Manual

Troubleshooting for Outdoor Unit

7.23 High Voltage of Capacitor in Main Inverter Circuit

P1
Remote Control
Display
Applicable
All outdoor unit models
Models
Method of Malfunction is detected according to the voltage waveform of main circuit capacitor built in the
Malfunction inverter.
Detection
Malfunction
When the aforementioned voltage waveform becomes identical with the waveform of the power
Decision supply open phase.
Conditions
" Defect of main circuit capacitor
Supposed
" Improper main circuit wiring
Causes
" Defect of outdoor unit PCB (A1P)
Troubleshooting
332
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check for the connection of
the main circuit capacitor "C4".
Is the "C4"
properly connected?
YES
NO
SiENBE18-621
If not connected, connect the "C4".
Replace the outdoor unit PC board
(A1P).
Troubleshooting