13
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
The fan seems louder
than it should be.
The CFM is too great for the space. Be sure the CFM rating on the fan matches the
square footage of your room.
The damper is damaged or not working
properly.
Check the damper to ensure it is opening and
closing properly. If the damper has become
damaged, please call Customer Service.
The bend in the duct is too close to the
fan discharge.
Be sure you do not have any sharp bends in the duct
within 18 in. of the fan discharge.
The fan discharge is reduced to t a
smaller duct.
Use the recommended size ducting to reduce fan
noise.
The fan body is not attached securely. Be sure the fan is securely attached to the ceiling
joists.
The fan has an abnormal
sound or vibration.
The fan body is not attached securely. Be sure the fan housing is securely attached to the
ceiling joists or wall studs.
The grille is not attached securely. Be sure the grille is pushed upward gently until it is
rmly attached to the fan housing.
The circular duct is not secured to the
duct connector.
Be sure the duct tape or clamp is secured for an
airtight connection.
The fan is not clearing
humidity from the room.
There is insufcient airow intake in the
room.
Be sure a door or window is slightly ajar or open to
allow airow. The fan is not able to draw air out of
the room without enough airow.
There is insufcient CFM.
NOTE: Using a tissue is not the
correct method for determining if the
fan is operating properly. If the fan
clears steam from the room within
approximately 15 minutes of completing
your shower, then the fan is operating
properly.
Be sure the CFM rating on the fan matches the
square footage of your room.
The fan keeps running
even though the humidity
level is lower than the
user-adjustable set-point
for the relative humidity.
NOTE: The humidity
sensor tolerance is +/-
10% RH.
Outdoor humidity is back drafting into
the fan.
Continue to let fan run since it is good to keep
venting the house and the electric cost is minimal
(estimated at less than $10 per year).
The fan is operating in manual mode. Verify the humidity sensing function has been
selected. The LED indicator light in the grille will
be blue when humidity sensing mode is turned on.
LIMITED 5-YEAR WARRANTY
If this product fails due to a defect in materials or workmanship at any time during the rst FIVE years of ownership, the
manufacturer will replace it free of charge, postage-paid at their option. This warranty does not cover products that have
been abused, altered, damaged, misused, cut or worn. This warranty does not cover use in commercial applications. Use
only manufacturer-supplied genuine warranty repair replacement parts to repair this fan. Use of non-genuine repair parts
will void your warranty. The manufacturer DISCLAIMS all other implied or express warranties including all warranties of
merchantability and/or tness for a particular purpose. As some states do not allow exclusions or limitations on an implied
warranty, the above exclusions and limitations may not apply. This warranty gives you specic legal rights, and you may
have other rights that vary from state to state.
This warranty is limited to the replacement of defective parts only. Labor charges and/or damage incurred during installation,
repair, replacement as well as incidental and consequential damages connected with the above are excluded. Any damage
to this product as a result of neglect, misuse, accident, imporper installation or use other than the purpose SHALL VOID
THIS WARRANTY.
Shipping costs for return product as part of a claim on the warranty must be paid for by the customer.
Inquiries regarding warranty claims can be directed to 866-994-4148, 8 a.m. - 8 p.m., EST, Monday - Sunday. You could also
contact us at ascs@lowes.com.
Printed in China
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