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Range hood repair: fan motor diagnosis, grease filter maintenance, ductwork troubleshooting, and ventilation guides for California kitchens.
A working range hood does three jobs: it removes cooking smoke and steam, captures airborne grease before it coats your cabinets, and exhausts combustion byproducts from gas cooking. When it fails — weak airflow, loud rattling, a fan that won't turn on — most homeowners just cook with a window open and delay the repair. That delay accelerates grease buildup throughout the kitchen and, for gas cooktop users, allows carbon monoxide and nitrogen dioxide to accumulate at levels that affect indoor air quality.
Range hood repairs center on three subsystems: the fan motor (including the capacitor that starts it), the lighting circuit, and the control board or switch assembly. Fan motors in ducted hoods work harder than recirculating models because they push air through rigid ductwork — sometimes 20+ feet in two-story homes. Our guides cover motor testing with a multimeter, capacitor value verification, and the telltale signs that distinguish a motor bearing failure (grinding at all speeds) from a ductwork blockage (motor strains, airflow weak).
San Francisco row houses and older Sacramento bungalows present unique venting challenges: short clearances to property lines, shared walls with neighbors, and ducts that were downsized during renovations. We cover the CFM calculations that determine whether your ductwork matches your hood's output, the code requirements for makeup air in tightly sealed homes, and the acoustic solutions that reduce noise from high-powered professional-style hoods.
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A downdraft vent matches the 30 or 36-inch width of the cooktop it serves and rises only 8 to 14 inches above the counter when raised, with a shallow 8 to 13.
An island range hood spans 36 to 48 inches wide with a chimney that extends 30 to 48 inches down from the ceiling, and it runs 24 to 30 inches deep.
Tucked beneath a wall cabinet, this vent is a slim canopy, 30 or 36 inches wide and a mere 3 to 8 inches deep in body height.
A wall-mounted chimney canopy stretches 30 to 48 inches wide, its flue telescoping 30 to 45 inches toward the ceiling while the body juts 19 to 27 inches off.
Range hood amps, watts and breaker: a standard ducted hood draws about 1 to 3 A at 120 V on a 15 A circuit; a high-CFM pro hood up to 6 A on a 20 A circuit.
How much CFM does your range hood need? California's Title 24 energy code adds requirements other states don't have. Our technicians explain sizing, makeup air, and compliance.
How much CFM does your range hood need? California's Title 24 energy code adds requirements other states don't have. Our technicians explain sizing, makeup air, and compliance.
Range hood not working? Diagnose fan, light, and venting problems with this repair guide. Learn common causes, costs, and when to replace vs repair.
Range hood not working? Diagnose fan, light, and venting problems with this repair guide. Learn common causes, costs, and when to replace vs repair.