Aj" Indoor Unit: Malfunction Of Capacity Determination Device - Daikin VRV III REYQ8PY1B Service Manual

SiBE37-701
AJ
" " Indoor Unit:
3.8
Device
AJ
Remote
Controller
Display
Applicable All indoor unit models
Models
Method of Capacity is determined according to resistance of the capacity setting adaptor and the memory
inside the IC memory on the indoor unit PC board, and whether the value is normal or abnormal
Malfunction
is determined.
Detection
Malfunction When the capacity code is not contained in the PC board's memory, and the capacity setting
adaptor is not connected.
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Malfunction of Capacity Determination
The capacity setting adaptor was not installed.
Defect of indoor unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
The indoor
unit PC board was replaced
with a replacement
PC board.
YES
Was the
capacity setting
adapter mounted when
replacing the
PC board?
NO
Troubleshooting by Indication on the Remote Controller
NO
YES
Replace the indoor unit PC board.
Replace the indoor unit PC board.
Install a capacity setting adaptor.
(V2783)
267