12
Care and Maintenance
WARNING: Disconnect power supply before servicing.
□ See SAFETY INFORMATION before proceeding. Routine maintenance should be done at least once a year.
□ Never use solvents, thinner or harsh chemicals for cleaning the fan.
□ Do not allow water to enter the motor.
□ Do not immerse metal parts in water.
Troubleshooting
Problem Solution
The fan seems louder
than it should.
The CFM is too great. 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 closer
than 18 in. to 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 keeps running
even though the house
humidity level is lower
than 60% RH.
The sensor tolerance is +/- 10% RH. Continue to let the fan run since it is good to keep venting
the house and the electric bill is minimal. When the
humidity is below the set point, the fan stops running.
Outdoor humidity is back drafting into the fan.
The fan is not clearing
the room.
There is insufcient airow intake in the room. Be sure a door or window is slightly ajar or opened to allow
airow. The fan is not able to draw air out of the room
without enough airow to draw from.
There is insufcient CFM. Be sure the CFM rating on the fan matches the
requirements for your room size.
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
15minutes of completeing your shower, then the fan
is operating properly.
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