Si20-701_B Troubleshooting by Remote Controller
110
Remote Controller Display
AJ
Applicable Models
FCQ(H), FFQ, FDQ, FHQ, FAQ, FUQ, FVQ
Method of Error 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.
Error Decision Conditions
The error is generated when the following conditions are
fulfilled:
Supposed Causes
îš„ Defective capacity setting adaptor connection
îš„ Defective indoor unit PCB
Capacity Setting Adaptor
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:
In case the indoor unit 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.
Condition Description
1 z The unit is in operation.
z The PCB’s memory IC does not contain the capacity
code.
z The capacity setting adaptor is not connected.
2 z The unit is in operation.
z The capacity that is set, does not exist for that unit.
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