Daikin FTX50GV1B Service Manual page 80

Troubleshooting
Troubleshooting RX50/60G3V1B
69
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn on the power again.
Is LED A blinking?
YES
Check if the outdoor unit is
grounded.
Grounded?
YES
NO
Is the harness
broken?
YES
NO
NO
SiBE041029EB
Replace the outdoor unit
PCB (2).
Ground the system.
Zero-cross signal
abnormality.
Replace the outdoor unit
PCB (1).
Replace the harness.
(R19527)
Service Diagnosis