Daikin FTX50GV1B Service Manual page 103

SiBE041029EC
Troubleshooting
Check No.17
Refer to P.100
Check No.19
Refer to P.101
RX50/60G2V1B
RX50/60G2V1B9
RX50/60G3V1B
RX60G4V1B
71 class
Note: Refer to Silicon Grease on Power Transistor / Diode Bridge on page 111 for detail.
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn off the power. Then, turn on
the power to restart the system.
Error displayed again?
NO
Check No. 19
Check the outdoor fan.
OK
Radiation fin dirty?
YES
YES
Has the PCB been
replaced?
NO
Check the radiation fin
temperature.
Above A ˚C?
YES
NG
NO
A (°C)
105
85
105
Troubleshooting
YES
Check if silicon grease is
applied properly on the
radiation fin. If not, apply
the silicon grease.
NO
Replace the outdoor unit
PCB (main PCB).
Replace the outdoor fan
motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB (main PCB).
Check the installation
condition.
Go to Check No. 17.
Clean up the radiation fin.
(R21437)
92