
Why is there a delay when I turn on my fan to low speed
continuous airow mode?
• The fan system is sensing the air pressure in the ductwork and then
adjusting to corresponding fan speed. This process can take about
10 seconds.
When I ip on the Control Switch on my wall, my fan does not
turn on.
• First, verify the function of your wall switches. Starting with both
wall switches in the off position, ip the rst switch on. If the fan
begins to run after approximately 10 seconds, this is your control
switch. If the fan does not turn on, this is your boost switch.
• If the control switch still does not turn on the fan, the continuous
run feature settings may need to be adjusted. First, switch the power
to the fan off at the service panel and lock or mark the disconnect
with a warning tag and refer to instruction manual to adjust
continuous airow setting. If the dial is pointing directly at or below
the 30 CFM setting, the continuous run feature is turned off and the
fan will not operate in continuous run mode.
My humidity sensing fan (LP510RS and LP510RSL) does not boost
up to high speed mode when I turn my shower on.
• If the fan is located away from the shower area, the humidity point
may not be triggered and the humidity setting may need to be
adjusted to a lower level. First, switch the power to the fan off at the
service panel and lock or mark the disconnect with a warning tag and
refer to your instruction manual to adjust the humidity sensing rating.
My humidity sensing fan (LP510RS and LP510RSL) turns on to high
speed boost mode too often.
• The humidity sensor in the fan responds to either a rapid increase
in humidity or the humidity in the room has gone above the user-
adjustable set point. If the fan continuously responds to changing
environmental conditions, the humidity setting may need to be
increased. First, switch the power to the fan off at the service panel
and lock or mark the disconnect with a warning tag and refer to your
instruction manual to adjust the humidity sensing rating.
Why does my humidity sensing fan (LP510RS and LP510RSL) not
function during some seasons and weather changes?
• Temperature changes in a room due to a change in seasons and
weather may cause the humidity sensor values to change. If this
happens, follow the steps above to adjust the humidity setting
accordingly.
LP510R/LP510RS/LP510RSL QUICK START GUIDE
TROUBLESHOOTING FAQ
If the fan continuous to not operate after adjusting,
contact Broan Technical Support for further assistance.
1-800-637-1453
www.Broan-NuTone.com
Broan-NuTone LLC
Hartford, Wisconsin 53027
©2023 Broan-NuTone LLC |Printed in U.S.A.
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