Capacity Determination Device Abnormality - Daikin VRV-WIII RWEYQ72PTJU Service Manual

Troubleshooting by Indication on the Remote Controller
3.9

Capacity Determination Device Abnormality

AJ
Error Code
Applicable All indoor models
Models
Method of Error
Capacity is determined according to resistance of the capacity setting adaptor and the memory
Detection inside the IC memory on the indoor unit PCB, and whether the value is normal or abnormal is
determined.
Error Decision When the capacity code is not saved to the PCB, and the capacity setting adaptor is not connected.
Conditions When a capacity that does not exist for that unit is set.
 The capacity setting adaptor was not installed.
Supposed
 Defective indoor unit PCB
Causes
Troubleshooting
170
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
The
indoor unit PCB
NO
was replaced with a
spare PCB.
YES
The
capacity
NO
setting adaptor need
to be installed when
replacing the
PCB.
YES
SiUS30-1301
Replace the indoor unit PCB.
Replace the indoor unit PCB.
Install a capacity setting
adaptor.
Service Diagnosis