TROUBLESHOOTING
PROBLEM
Unit Not Running
Running But Making
Loud, Grating Noise
Excessive Vibration
Blower Wheel Not Turning
Unit Runs But Shuts Off
On Overload
POSSIBLE CAUSE
a) Switch is OFF
b) No Power
c) Bad Outlet
d) Faulty Switch
e) Faulty or Broken
Motor Wire or Cord
a) Severe Jolting Causing
Blower Wheel To Rub
Against Housing
b) Severe Jolting Deformed
Housing
a) Severe Jolting Caused
Motor Shaft To Bend; Unit Is
Out Of Balance
b) Damaged Blower Wheel Blade
c) Build Up Of Dirt On One Side
Of Blower Wheel
a) Blower Wheel Jammed
Against Housing
b) Broken/Loose Capacitor
Wire; Failed Capacitor
c) Damaged Housing Is
Pressing On Blower Wheel
a) Failing Motor Bearings;
Internal Electrical Fault
In Motor
b) Obstruction In Intake
Grill/Exhaust Grill
SOLUTION
a) Turn Switch On
b) Plug Unit In; Check
Circuit Breaker
c) Check Outlet/Change
To Another Outlet
d) Replace Switch*
e) Use Volt/Amp Meter
to Check On
Continuity; Replace
Faulty Motor Wire
or Cord*
a) Remove And Replace
Damaged Motor Or
Motor Mounts*, If
Needed
b) Replace Blower Wheel
Or Damaged Housing*
a) Remove And Replace
Motor*
b) Replace Blower Wheel*
c) Clean Blower Wheel
Blades
a) Remove And Replace
Damaged Motor
Mounts*; Replace
Blower Wheel, If Needed*
b) Replace Capacitor Wire/
Motor, If Needed*
c) Replace Housing/Unit,
If Needed*
a) Replace Motor*
b) Remove Obstruction
*For these issues, please contact factory for further instruction/assistance.
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