Capacity Setting Abnormality - Daikin SkyAir GQI-Eco Series Service Manual

Troubleshooting by Remote Controller
4.7

Capacity Setting Abnormality

AJ
Remote
Controller
Display
Applicable All models of indoor unit
Models
Method of Error 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
Detection
determined.
Error Decision The error is generated when the following conditions are fulfilled:
Conditions
1
2
Supposed
Causes
Capacity setting The capacity is set in the PCB's memory IC. A capacity setting adaptor that matches the
capacity of the unit is required in the following case:
adaptor
In case the indoor PCB installed at the factory is for some reason changed at the installation
site, the capacity will not be contained in the replacement PCB. To set the correct capacity for
the PCB you have to connect a capacity setting adaptor with the correct capacity setting to the
PCB. The capacity setting for the PCB will become the capacity setting of the adaptor because
the capacity setting adaptor has priority.
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
The indoor
unit PCB was replaced
with a spare PCB.
YES
Was the
capacity setting
adaptor mounted when
replacing the
PCB?
NO
112
Condition Description
The unit is in operation.
The PCB's memory IC does not contain the capacity code.
The capacity setting adaptor is not connected.
The unit is in operation.
The capacity that is set, does not exist for that unit.
Defective capacity setting adaptor connection
Defective indoor unit PCB
NO
YES
SiBE281013
Replace the indoor unit PCB.
Replace the indoor unit PCB.
Install a capacity setting
adaptor.
Service Diagnosis