Signs: No airflow or noise when the fan button is pressed.
Likely Causes: Faulty fan motor, blown fuse, defective switch, or control board failure.
Solution: Check power supply, test fan motor with a multimeter, inspect and replace control switches or circuit board if needed.

Signs: Smoke, steam, or odors not being extracted properly.
Likely Causes: Clogged grease filters, blocked ductwork, or low-speed motor failure.
Solution: Clean or replace grease filters, inspect duct for obstructions, and test motor performance.

Signs: Rattling, humming, or grinding sound when the fan runs.
Likely Causes: Loose fan blades, worn-out motor bearings, or objects inside the fan housing.
Solution: Tighten fan assembly, lubricate or replace motor, and check for foreign objects.

Signs: No illumination when the light switch is turned on.
Likely Causes: Burnt-out bulbs, faulty light switch, or wiring issue.
Solution: Replace bulbs with correct wattage/type, test switch, and inspect wiring or control board.

Signs: Sticky residue on surfaces or grease dripping from the hood.
Likely Causes: Dirty or saturated grease filters, lack of routine cleaning.
Solution: Clean filters regularly, replace disposable ones, and wipe down internal surfaces with degreaser.