Troubleshooting SiENBE04-507A
136 Service Diagnosis
Troubleshooting
Check No.6
Refer to P.146
Check No.7
Refer to P.147
Check No.9
Refer to P.148
Turn off the power and turn it on
again.
Check No. 6
Check the thermistor resistance
value.
Replace the fin thermistor.
Replace the outdoor unit
PCB.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R4279)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error again or outdoor unit
fan activated?
Check No. 9
Check the outdoor unit
fan or related.
Radiation fin dirty?
Thermistor as
specified in its characteristic
chart?
Above 80°C?
Check the radiation fin
temperature.
Check No. 7
Check the installation condition.
To cool down the electricals, the
outdoor unit fan gets started when
the radiation fin temperature rises
above 80°C and stops itself when it
drops below 70°C.
Caution
WARNING
NO
NO
NO
YES
YES
YES
Fin thermistor
Malfunctioning
Functioning
Too dirty
Slightly dirty
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