Daikin FTK25JVE9 - Page 305

Troubleshooting - Outdoor Unit Related Si18-201
292 Service Diagnosis
Troubleshooting
Check No.14
Refer to P.308
NO
Could be outside causes
other than errors.
Probe where the noise
comes from, and apply
remedy required.
Probe the causes for
deformation of power
supply waveform and apply
remedy required.
Replace outdoor unit
control PC board.
(MF048)
YES
Check No. 14
Check the power supply
waveform.
Is U4 displayed?
NO
Is it deformed?
YES
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