11
This is the biggest cause for service calls, which are outside the manufacturer’s
warranty. If a fan has a fault, it will always be noticeable. even during the day.
Naturally when everything is quiet at night, you will be more inclined to hear
small noises, which may not be noticeable at other times. Blades spinning,
may cause a slight chopping sound which is more pronounced at higher speeds.
This is normal and is an indicator of high air movement.
Is the 'Lower Canopy touching the spinning parts? (adjust as required)
Is
the
'
upper canopy'in
contact
with
ceiling
surface
?