Troubleshooting
SiBE05-722ED
95
Service Diagnosis
Troubleshooting
RK(X)S25/35E2V1B
Check No.01
Refer to P.99
Check No.17
Refer to P.105
Check No.19
Refer to P.106
Note:
Refer to Silicon Grease on Power Transistor / Diode Bridge on page 118 for detail.
(R19761)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
NO
YES
NO
YES
Turn off the power and turn it on
again
to start the system.
Check the radiation fin
temperature.
NO
YES
YES
Above
A
˚C?
As described
in the characteristic chart?
Check No. 01
Check the radiation fin thermistor
resistance value.
Error displayed again?
Has the PCB been
replaced?
Replace the radiation fin
thermistor.
Check if silicon grease is
applied properly on the
radiation fin. If not, apply the
silicon grease.
Check the power transistor
and the radiation fin for
looseness. If they are found
to be fit tightly, replace the
outdoor unit PCB or the
power transistor.
YES
NG
NO
OK
Radiation fin dirty?
Check No. 19
Check the outdoor fan.
Clean up the radiation fin.
Replace the outdoor fan
motor.
Correct the connectors
and fan motor lead wire.
Replace the outdoor unit
PCB.
Check the installation
condition.
Go to
Check No. 17
.
A
(°C)
RK(X)S25/35E2V1B
90
