Si20-701_B Troubleshooting by Remote Controller
90
Remote Controller Display
A6
Applicable Models
FBQ
Method of Error Detection
îš„ Detection from the current flow on the fan PCB.
îš„ Detection from the rotation speed of the fan motor in
operation.
îš„ Detection from the position signal of the fan motor.
îš„ Detection from the current flow on the fan PCB when
the fan motor starting operation.
Error Decision Conditions
îš„ An overcurrent flow
îš„ The rotation speed is less than a certain level for 6
seconds.
îš„ A position error in the fan rotor continues for 5
seconds or more.
îš„ An overcurrent flow
Supposed Causes
îš„ The clogging of a foreign matter
îš„ The disconnection of the fan motor connectors
îš„ The disconnection of the connectors between the
indoor unit PCB and fan PCB
îš„ Defective fan PCB
îš„ Defective fan motor
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