TROUBLESHOOTING TIPS
Save time and money! Review the chart below first and you may not need to schedule service.
Problem
Fan/light does not
operate when switch is
turned on
Fan fails to circulate air
or moves air slower than
normal and/or fan is
making loud or abnormal
airflow noise
Motor bearings are
making excessive or
unusual noises.
When the wall switch
is turned on, there is a
slight delay before the
fan and light turn on.
Fan keeps running when
the wall switch is turned
off.
14
Possible Cause
A GFCI or circuit breaker is tripped, or
house fuse may be blown.
It may seem that the fan is not running if
low air flow setting is activated.
For three function wall switch setup,
switch one is off.
Obstructions in duct work.
Damper flap on the product may not be
open
Wrong duct size used in installation.
Obstruction in the motor housing or bearing
failure.
Low air flow setting is activated.
Delay Off timer is activated.
Humidity sensor is activated.
What To Do
Reset GFCI, circuit breaker or replace house fuse. If
this does not fix the issue, please refer to the LIMITED
WARRANTY section.
Confirm fan is running by looking into the grill.
Refer to page 7 for three function wall switch settings
and page 11 for three function wiring diagram. For three
functioin wall switch wiring setup, switch 1 must always
stay on for fan operation.
Make sure that if your wall or roof cap has a blade or door
that it is open.
Make sure damper swings freely. Damper flap may flip
over and will not fully open when this happens. Adjust to
original position.
This fan requires 6" ducting to perform optimally. Using
smaller duct size will cause reduced venting. Minimize
the duct run length and number of transitions and
elbows.
Check for obstructions in the motor housing, refer to the
PRODUCT CARE section for cleaning instructions. The
motor is permanently lubricated and never needs oiling.
If the issue in not fixed, please refer to the LIMITED
WARRANTY section.
It is normal for the fan and light to take a few seconds to
start running once wall switch is turned on.
To deactivate this feature, set the low air flow selector
setting to off position on the unit
The unit will continue to run for the set delay off time once
the wall switch for fan is turned off or the humidity level
drops below the humidity sensor setting. To deactivate this
feature, set the delay off timer selector to off position on
the unit.
The humidity sensor will keep the fan running until the
relative humidity level drops below the set percent on
the humidity sensor. If the fan continuously responds to
changing environmental conditions (too sensitive), the
humidity sensor setting may need to be adjusted. To
deactivate the feature set the Humidity selector to off
position on the unit.
49-7000175 Rev. 3