Installation Manual
TROUBLESHOOTING
If the hood does not perform satisfactorily, check the following:
•  Do the blowers run?
•  Are the blower wheels installed on the correct motors? (black wheel on black motor, white 
wheel on white motor)
•  Are the motor and wheel assemblies installed in the correct locations?
•  Check the damper doors in hood behind/above blowers - do they move/open freely?
•  Check the dampers/vents to outside - do they open freely, with no obstructions?
•  Check for damaged or obstructed ductwork.
Make sure you have the correct motor in each housing position.
•  If the replacement blower motor includes a blower wheel, then you can remove the motor and 
wheel together. If you will re-use your existing wheel, then you may wish to remove the wheel 
before removing the motor.
1.  Remove the shield and blower housing as described 
in “Blower Wheel Removal” on page8.
2.  Use a ¼” nut driver to remove the three motor 
mount screws that attach the motor to the base. 
3.  Gently pull the motor forward and down. 
4.  Disconnect the wiring harness, remove the old 
motor.
•  To avoid damage to the blower wheel, you may wish 
to install the motor and then install the wheel onto 
the motor.
5.  Lift the new motor so you can connect the 
wiring harness. Be sure to fully engage the electrical 
connections and tighten the motor mount screws. 
6.  Check the blower wheel clearance and adjust as 
needed, as described in “Blower Wheel Installation” on 
page8.
CLEANING AND MAINTENANCE 
(CONT.)
©2018 Hestan Commercial Corporation
9
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