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There is no routine maintenance required for this fan other than making sure the fan assembly and backdraft
damper are kept clean of any possible build up of debris.
Blocking this fan’s exhaust can cause it to fail prematurely. Keep the area in front of the fan as unobstructed as
possible. No object should be closer than 24” to the face of the fan.
Resettable circuit breaker is located on the control box and fan mounted electrical box to protect circuit boards
from power surges. In the case of a power surge, these breakers can be reset by simply pushing the button back in.
This fan has been factory tested. If problems are encountered, please take a few moments to run through the fol-
lowing troubleshooting procedures before calling for assistance:
• If the fan does not turn on, check the power to the unit, the control connections, and the circuit switch on the
fan mounted electrical box.
• If the damper fl aps do not open or close, visually inspect the damper for any debris obstructing their move-
ment.
If the suggestions above do not work, contact Field Controls technical support at 800.742.8368 or by email at
fi eldtec@fi eldcontrols.com for further assistance.
MAINTENANCE & TROUBLESHOOTING
The following important tips for operating this fan have also been provided in the “
How to Operate Your Whole
House Fan
” document included with this fan.
•
• NEVER
NEVER operate this fan without also opening a window or door. Doing so can excessively depressurize the
operate this fan without also opening a window or door. Doing so can excessively depressurize the
home.
home.
• Only operate this fan when the outdoor air temperature is cooler than the indoor temperature.
•
• Make sure the home’s air conditioner and furnace are OFF before turning on this fan.
Make sure the home’s air conditioner and furnace are OFF before turning on this fan.
Running either of these
together with this whole house fan wastes money because the fan will force expensively conditioned or
heated air out of the home.
• We recommend running this fan through the night. Here’s why: The goal of using a whole house fan is to
cool the entire home, not just the air inside it. Once heated, the home’s structure and contents continue to
radiate heat until reaching the temperature of the surrounding air. Running this fan through the night speeds
up this cooling process and can then further “pre-cool” the home, reducing or eliminating the need to use air
conditioning the next day.
• If the home has a basement, extra cooling can be achieved by drawing in air through the basement windows.
• This fan’s cooling effect can be increased or concentrated in particular areas by adjusting the location of open
windows. Visualize the path air will travel from the windows to your fan’s opening. Generally, the longer the
path, the more cooling.
IMPORTANT OPERATING TIPS
To set the fan’s timer, press the TIMER UP button. The timer will be set to 1 hour, after which the fan will automatically
turn off. To increase the timer’s setting, press this button again. Each time this button is pressed, the timer’s setting
will increase by 1 hour, up to 12 hours total. To increase or decrease the fan’s speed while its timer is running, press
the appropriate button, doing so will not affect the timer. The timer resets each time the fan is turned off.
To turn the fan off, press the Speed down button (until all LED lights turn off). The fan will turn off at any speed,
canceling any remaining time on the timer.
When starting this fan for the fi rst time, make sure to observe it turning on, running at each of its speed settings, and
turning off from both the attic (to see the fan itself ) and the living space (to see the backdraft damper).
•
If the fan does not turn on, check the power to the unit, the control connections, and the circuit breaker on the
fan mounted electrical box.
•
If the damper fl aps do not open or close, visually inspect the damper for any debris obstructing their movement.
•
If the steps above do not work, contact Field Controls Tech Support at 800.742.8368 or fi eldtec@fi eldcontrols.
com for further assistance.
P/N 780100500 05/19 Rev B
