Specifications

SiBE04-624 Troubleshooting
Service Diagnosis 185
Troubleshooting
Check No.2
Refer to P.202
Check No.3
Refer to P.203
Check No.5
Refer to P.203
Replace the fin thermistor.
Check the power transistor
and fin for looseness. If
they are found to be fit
tightly,replace the PCB or
the power transistor.
Replace fan motor.
Rectify connector and fan
motor lead wire.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
Does the fault
appear again?
Check No.5
Outdoor fan system
check
(R6015)
OK
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Does the thermistor
meet the specification chart
of thermistor?
NO
Check No.2
Thermistor resistance check
Turn off the power supply and
turn it on again to get the system
started.
YES
NO
NG
Check the radiation fin
temperature
Does the temperature
exceed the temperature to
stop operation?
YES
NO
YES
Radiation fin dirty?
Slightly dirty
Too dirty
Check No.3
Installation condition check
To cool down the electric
components, the outdoor unit fan
gets started when the radiation
fin temperature rises above
120 ˚C and stops when the
temperature falls below 113 ˚C.
WARNING
· Fin thermistor