Daikin FTX25JVEA9 Service Manual page 305

Super multi plus j series
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Troubleshooting - Outdoor Unit Related
Troubleshooting
Check No.14
Refer to P.308
292
2
1
Is U4 displayed?
NO
Check No. 14
Check the power supply
waveform.
Is it deformed?
NO
YES
YES
Si18-201
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)
Service Diagnosis

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