Troubleshooting SiBE041102_A
80 Service Diagnosis
Troubleshooting
Check No.17
Refer to P.92
Check No.19
Refer to P.93
Note: Refer to “Application of silicon grease to a power transistor and a diode bridge” on page 141 for
detail.
(R14445)
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 PCB been replaced?
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(
∗
). (See Note.)
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.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
A (°C)
99
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