4-4-15 The operational error of Indoor Unit's Fan Motor
1. How to diagnose
1) Occurs when RPM valve fails to feedback to MICOM at a PID control-type fan motor
2. How to check
1) Check HALL IC connector that carries out feedback of RPM value.
2) If a fan motor operation capacitor is a PCB separating type, check the connection terminal.
3) Check the operational status of the fan motor.
4) If there is no problem with the above checkup items, replace the PCB.
Outdoor unit display
x x x
(
x x x
:
The address of the error occurred indoor unit)
Indoor unit display
Operation Timer
Criteria
• Refer to the judgment method below.
Cause of problem
• The operational error of the fan motor of No. XXX indoor unit
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