Troubleshooting
SiBE04-808_B
137
Service Diagnosis
Troubleshooting
Check No.07
Refer to P.149
Check No.09
Refer to P.150
Note:
Refer to “Application of silicon grease to a power transistor and a diode bridge” on page 297 for
detail.
(R12001)
Caution
NO
Slightly dirty
NG
Too dirty
OK
NO
YES
Turn off the power and turn it on
again
to start the system.
Check the radiation fin
temperature.
Check No. 07
Check the installation condition.
NO
YES
YES
Above
A
˚C?
Radiation fin dirty?
Check No. 09
Check the outdoor unit fan
or related.
Error displayed again?
Has PCB been replaced?
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(
∗
). (See Note.)
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.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
∗
Silicon grease
Part No.: 1
172698
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
A
(°C)
RK(X)S20-35G2V1B, ARXS20-35G2V1B
90
RK(X)S20-35G2V1B9, ARXS20-35G3V1B
98
RK(X)S42G2V1B, ARXS42G2V1B
92.5
RK(X)S50G2V1B, ARXS50G2V1B
105
