Smoky in Tofino

:eek: Why does my new rangehood blow some of the fumes/smoke out the sides thru the 2 lights???
The rangehood is very good in the center and vents to the outside thru the wall BUTfor some reason some of the fumes/smoke comes back in thru the sides of the housing of the fan and sets off my smoke alarm???

I was thinking of getting some foil tape and taping around the hosing of the fan.

Anyone else have this problem???
Smoky in Tofino

Check to make sure the filters are clean.