12 13
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
The fan is not turning on 1. Power o
2. Faulty switch
3. Faulty wire connection
1. Make sure power supply is on.
2. Test or replace switch.
3. Check wire in switch box.
The fan seems louder
than it should
1. CFM too great
2. Damper not working
properly or damaged
3. Bend in duct too close
to fan discharge
4. Fan discharge reduced
to t smaller duct
5. Fan body not securely
attached
1. Be sure the CFM rating on the fan matches the
size of your room.
2. Check damper to ensure it is opening and
closing properly. If the damper has become
damaged, please call Customer Service.
3. Be sure you do not have any sharp bends in
duct closer than 18 in. to the fan discharge.
4. Use recommended size ducting to reduce fan
noise.
5. Be sure the fan is securely attached to your
ceiling joists.
The fan is not clearing
the room
1. Insucient intake
airfow within room
2. Insucient CFM
1. 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 in from.
2. Be sure the CFM rating on the fan matches the
requirements for your room size.
The fan keeps running
even though the house
humidity level is lower
than set humidity level
1. Our sensor tolerance
is +/-10% RH
2. Outdoor humidity is
back drafting to the fan
1. Continue to let the fan run since it is good to
keep venting the house and the electric bill is
minimal (approximately less than $10 per year).
2. Turn the fan o when not in use.
TROUBLESHOOTING
DIMENSIONS
12
12
3/4
8
1
9
Ø4
3/8
3/8
5/8
1/2
Unit: Inch
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