Daikin E-Series Service Manual page 256

SiBE12-818
Troubleshooting
Check No.07
Refer to P.257
Check No.09
Refer to P.258
Note: Refer to "1.3 Application of Silicon grease to a power transistor and a diode bridge" on P 304.
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn off the power and turn it on
again to get the system started.
Error displayed again?
NO
Check No. 09
Check the outdoor unit fan
or related.
Functioning
Radiation fin dirty?
Slightly dirty
Check No. 07
Check the installation condition.
YES
Has PCB been replaced?
NO
Check the radiation fin
temperature.
Above 105˚C?
YES
Malfunctioning
Too dirty
Troubleshooting
YES
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(∗). (Note 1)
∗
Silicon grease
Part No.: 1172698
NO
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.
(R7178)
245