Troubleshooting for Outdoor Unit SiBE121123_A
203 Service Diagnosis
Troubleshooting
Check No.17
Refer to P.215
Check No.19
Refer to P.216
Note: Refer to “Silicon Grease on Power Transistor / Diode Bridge” on page 240 for detail.
(R18320)
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. 17
Check the installation condition.
NO
YES
YES
Above A ˚C?
Radiation fin dirty?
Check No. 19
Check the outdoor fan or
related.
Error displayed again?
Has the PCB been
replaced?
Check if silicon grease is
applied properly on the
radiation fin. If not, apply
the silicon grease.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Replace the outdoor fan
motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
A
(°C)
40 class 95
50 class 92.5
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