10 HP Totally Enclosed Fan Cooled Electric Motor
9
Visit www.princessauto.com for more information
8513582 V 3.03
TROUBLESHOOTING
Contact Princess Auto Ltd. for a solution if the device does not function properly or parts
are missing. If unable to do so, have a qualified technician service the device.
Problem(s) Possible Cause(s) Suggested Solution(s)
Motor will not start. There is a blown fuse or open
circuit breaker.
Test for voltage at the fuse or circuit breaker.
Also see if the voltage/amp rating of the fuse
or circuit breaker is correct for the motor. It
should exceed the Motor’s FLC by 25 percent.
Motor starter
overload activated.
Let cool and then reset overloads. Test the
starter before starting motor again.
The thermal switch is open. Reset the thermal switch, but beware as the
motor may automatically start when reset.
Low or no voltage
reaching motor.
Check each motor terminal’s voltage. The
voltage should be within 10% of the voltage
on the motor’s nameplate. Disconnect the
load and apply power to the motor. If the
motor operates normally, then the issue is
with the load attached to the motor. Should
the motor still not work, have it serviced or
replaced by a qualified technician.
Power enters control circuit
but does not reach the motor.
1. Begin by confirming all contacts are clean
and tight. Examine for obvious damage.
2. Test each part of the circuit for power until
the problem area is discovered.
3. Have a qualified service technician repair or
replace the circuit.
Fuse/circuit
breaker overloads.
There is a blown fuse or open
circuit breaker.
Test for voltage at the fuse or circuit breaker.
Also see if the voltage/amp rating of the fuse
or circuit breaker is correct for the motor. It
should exceed the Motor’s FLC by 25 percent.
Motor starter
overload activated.
Let cool and then reset overloads. Test the
starter before starting motor again.
Low or no voltage
reaching motor.
Check each motor terminal’s voltage. The
voltage should be within 10% of the voltage
on the motor’s nameplate. Disconnect the
load and apply power to the motor. If the
motor operates normally, then the issue is
with the load attached to the motor. Should
the motor still not work, have it serviced or
replaced by a qualified technician.