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Daikin REYQ-AATJA Service Manual page 417

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SiUS372201EA
Part 6 Service Diagnosis
Diagnosis Flowchart-5
UA-25
Error code
Sub code
Is the wiring
NO
between outdoor unit
and Branch Selector
unit correct?
YES
Diagnosis Flowchart-6
UA-26
Error code
Sub code
Is the wiring
NO
between Branch Selector
units correct?
YES
Troubleshooting by Error Code
Correct the wiring.
Replace the outdoor unit main
PCB (A1P).
Correct the wiring.
Replace the relevant Branch
Selector unit PCB.
410
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