8 HOW TO CHECK THE ELECTRIC PARTS
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Before repairing, use multimeter to judge circuit stand of fail
.
Part.
Circuit Diagram/Principle
Where, what & how to check?
Motor&
Capacitor The assembly of electric
capacitor it is mainly used to
start motor and control the
motor rotation direction. And
different capacitance should
suit for different motor, or the
motor would not work
properly
Check resistance of the motor.
Check capacitance of the capacitor.
yellow
blue
Light
blue
blue
yellow
Test point
Normal value
Yellow-Blue
Indicating needle rises
and immediately
indicates ∞.
The needle is stopped after it is raised.
Means Lack of capacitance of the
capacitor.
The needle doesn’t move Means
Capacitor is fully discharged.
Test point
Normal value
Yellow—Light
blue
15~25Ω
Blue—Light blue 15~25Ω.