The Large fan that is located on the back of the Pro power pack
has two primary functions.
Cooling - The large fan prevents the Pro from overheating.
If the fan slows down or stops where it can not effectively keep the power
pack at a normal operating temperature the pro will overheat and automatically
shut itself off.
Vacuum - The large fan is also generating the vacuum to draw the mosquitoes
into the net. If the fan slows down or stops there will be a reduction in
vacuum and will not draw the mosquitoes in as well.
If you are experiencing a problem with the large fan on your Mosquito Magnet®.
Pro please contact customer support.