Broan XB50 Installation Manual page 12

Page 12
WARNING
Before servicing or cleaning unit,
switch power off at service panel and lock the service
disconnecting means to prevent power from being
switched on accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent
warning device, such as a tag, to the service panel.
Operation
To Operate Fan
Use an ON/OFF switch to operate this ventilator.
It is normal for this ventilation fan to take approximately 5
seconds to start running after it is turned on.
Cleaning and Maintenance
CAUTION
IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:
DO NOT remove motor plug to stop spinning motor.
Power must be disconnected (see WARNING at top left of
this page) before motor plug is removed or inserted into
control assembly.
To Clean
For quiet and efficient operation, long life and attractive
appearance, remove Grille and vacuum interior of unit
with a dusting brush attachment.
The Motor is permanently lubricated and never needs
oiling. If the motor bearings are making excessive or
unusual noises, replace the Control Assembly and Motor.
XB50
Troubleshooting
Symptom: The fan does not run.
building's service panel.
and the Control are seated firmly in place.
Symptom: The fan runs erratically.
Motor shaft and both spin freely.
Symptom: The fan seems noisy.
Connector pivots freely. Screws used to attach the duct
to the Duct Connector may be preventing the damper
from opening.
pivots freely. These dampers are sometimes mistakenly
painted shut or obstructed by bird and insect debris..
XB80 XB110 Installation Guide