Daikin 3MKS50DVM, Руководство по обслуживанию

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Troubleshooting Si12-619A
248 Service Diagnosis
Troubleshooting
Check No.06
Refer to P.263
Check No.07
Refer to P.264
Check No.09
Refer to P.265
Note1: Refer to “1.3 Application of Silicon grease to a power transistor and a diode bridge” on P358.
Turn off the power and turn it on
again to get the system started.
C heck No. 06
Check the thermistor resistance
value.
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(
∗
). (Note 1)
∗
Silicon grease
Part No.: 1172698
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 the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R7097)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error displayed again?
YES
NO
Slightly dirty
Check No.09
Check the outdoor unit
fan or related.
Malfunctioning
Radiation fin dirty?
Too dirty
Functioning
Thermistor as
specified in its characteristic
chart?
Above 90˚C?
NO
YES
NO
YES
Has PCB been
replaced?
NO
YES
z
Fin thermistor
Check the radiation fin
temperature.
C heck No. 07
Check the installation condition.