Dacor EHD3618SS Kitchen Hood "range suction power" Questions

i have a thermador 30'' range it works fine it just lost suction power blade broke or slipping on motor shaft '' dirty '' filter or vent to outside stoped up'''

...Range hood. all 6 speeds were working before, but now all of a sudden, only TOP speed (number 6) works, FAN does not work at any other speed (1 to 5). Halogen lights are working at all speeds. any ...

...suction cup on the light replacement tool A (provided with you range hood) onto the lens of the light bulb B . 3. Turn the tool counter-clockwise until the bulb comes loose. 4. Remove the tool from ...