PCB Motor Testing
CN2
RY1
To check the motor:
• CN2 pin 1 (gray) to RY1 (blue) = approximately 1.7 ohms (Resistance of start
and run windings)
• A reading of approximately 3.6 ohms indicates an open winding, stuck open
start switch or open wiring
• A open circuit (OL) indicates both open motor windings, open motor
overload, open belt switch, or open wiring
Copyright 2009