Symptom
Probable Cause(s)
Corrective Action(s)
Motor overheats and
overload trips.
Intake/exhaust shutter is jammed/
clogged.
Repair/replace/clean as necessary.
Inlet/outlet guards clogged by dirt/
debris.
Repair/replace/clean as necessary.
Motor has excessive dirt build-up.
Clean unit.
Fan blade has excessive dirt build-
up.
Clean unit.
Building operating static pressure
too high.
Adjust air inlets to lower static pressure.
Power supply voltage is too low.
Check line voltage at motor; verify wiring is
of sufficient gauge for load and length of con-
ductor. Check with local utility supplier for
possible line problems.
40
PNEG-1502
54" Galvanized Mega Flow Butterfly Fan
