Daikin REYQ8-48PY1B, Руководство по обслуживанию

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Troubleshooting by Indication on the Remote Controller SiBE37-701_B
277 Troubleshooting
3.9
“
AJ
”
Indoor Unit: Malfunction of Capacity Determination
Device
Remote
Controller
Display
AJ
Applicable
Models All indoor unit models
Method of
Malfunction
Detection Capacity is determined according to resistance of the capacity setting adaptor and the memory
inside the IC memory on the indoor unit PCB, and whether the value is normal or abnormal is
determined.
Malfunction
Decision
Conditions When the capacity code is not saved to the PCB, and the capacity setting adaptor is not
connected.
When a capacity that does not exist for that unit is set.
Supposed
Causes
„
The capacity setting adaptor was not installed.
„
Defect of indoor unit PCB
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
YES
Replace the indoor unit PCB.
YES
NO
Replace the indoor unit PCB.
Install a capacity setting adaptor.
The indoor unit PCB
was replaced with a
spare PCB.
The capacity setting
adaptor need to be
installed when replacing
the PCB.