Owners Guide
53
Troubleshooting
Troubleshooting
TROUBLESHOOTING
Noisy Motor
• Were the fan speeds checked fan speeds prior to installation?
• Is the ducting clear?
• Check to make sure motor is attached to housing
• Is the 6” back draft damper on transition piece functioning properly (760 CFM
hood?) Does it open when the hood is engaged?
• If it is stuck, it will sound like motor noise but it’s really the damper
• Was a damper installed on the roof or side vent?
• Check that the damper is fully functioning by engaging the hood and
checking if it opens and closes properly
• If the motor is accessible, the motor knob can be tightened.
Take off the gray cap. You
can tighten the knob here to
eliminate any vibration.