600 Cfm Hood Does Not Pull Enough Smoke Or Odors From The Range. The Range Is A Kitchen Aid 30" Dual Fuel Range. Please Help
All I can do is give a few suggestions.
With luck others will add to this.
Did the unit ever work OK?
If no.
Check that it is installed properly re: duct size, height from stove top, etc.
Check that the exterior vent is opening properly.
Perhaps your house is too air tight. Open the kitchen door some to see if it now extracts OK.
If yes.
Check that the exterior vent is opening properly.
Check/clean the filters.
Check/clean the blower wheel.