Troubleshooting
SiBE04-809
108
Service Diagnosis
Troubleshooting
Check No.06
Refer to P.118
Check No.07
Refer to P.119
Check No.09
Refer to P.120
Note1:
Refer to “1.3 Application of
Silicon grease
to a
power transistor
and a
diode bridge
” on P192.
(R7339)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
Slightly dirty
Malfunctioning
Too dirty
Functioning
NO
YES
NO
YES
Fin thermistor
Turn off the power and turn it on
again
to get the system started.
Check the radiation fin
temperature.
Check No. 07
Check the installation condition.
NO
YES
YES
Radiation fin dirty?
Above 90˚C?
Thermistor as
specified in its characteristic
chart?
Check No. 06
Check the thermistor resistance
value.
Check No. 09
Check the outdoor unit fan
or related.
Error displayed again?
Has PCB been replaced?
Replace the fin thermistor.
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(
∗
). (Note 1)
Check the power transistor
and fin for looseness. If they
are found to be fit tightly,
replace the PCB or the
power transistor.
Replace the outdoor unit
PCB.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Clean up the radiation fin.
∗
Silicon grease
Part No.: 1
172698
Summary of Contents for ARXG25E3V1B
Page 1: ...SiBE04 809 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series ...
Page 11: ...Introduction SiBE04 809 x ...
Page 12: ...SiBE04 809 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 ...
Page 14: ...SiBE04 809 Specifications 3 Part 2 Specifications 1 Specifications 4 ...
