V 4.1
5 HP Totally Enclosed Fan Cooled Electric Motor
8601676
Problem(s)
Possible Cause(s)
Suggested Solution(s)
Motor is
overheating.
1. Broken or
disconnected ground.
2. Hot power lead is
connecting to the
motor frame.
3. Motor overloads during
operation.
4. Starting windings
remain active in
circuit as motor
accelerates.
5. Worn or poorly
lubricated bearings.
6. Inadequate ventilation
reaching the motor.
1. Reconnect or replace the ground wire and
test for proper ground.
2. Have a qualified technician inspect the
motor and repair/replace the defective
wiring.
3. A moving part of the motor may be
binding. Inspect the motor to see if any
parts are touching. Check to see the
motor’s shaft is straight.
a. Run the motor under normal load and
check the amount of current it is
drawing.
b. Disconnect the motor from its load and
check the current drawn while running
under no-load.
c. If the current draw is excessive under
load, but normal when there is no-load,
Inspect the load to determine the
problem.
d. If the no-load current is above the listed
rating, have the motor serviced or
replaced by a qualified technician.
4. Switch motor off to listen for a click. This
is the centrifugal switch closing as the
motor slows.
5. Damaged or poorly lubricated bearing can
be heard. This may be a result of wear,
inadequate oil reaching the bearings or the
motor overheating. Contact Princess Auto
Ltd. for a solution.
6. Clean/clear all ventilation openings. Use
dry compressed air if blowing debris out of
the ventilation openings.
Visit www.princessauto.com for more information
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