Warning! Be sure the unit is turned off before you clean it. Use a non-abrasive, household cleaning spray or degreaser to remove grease and dirt from the interior and exterior of the hood. Avoid spraying the cleaner directly onto the light bulb, light bulb socket, or other electrical components.
2Make sure a clean air filter is in place.
The thin, silvery screen is the grease filter (there may be more than one, depending on your model). It traps airborne oils and grease to keep them out of the blower and exhaust vent. To clean the filter, remove it and soak it in a degreasing solution until the grease is dissolved. Next, wash it with warm, soapy water to remove any traces of the degreaser. Then put it in the upper rack of the dishwasher and run it through a normal cycle. Make sure the filter is thoroughly dry before returning it to the hood.
If your model circulates air, rather than vents it to the outside, it may have one or more or more activated charcoal filters which may also serve as the grease filter. Charcoal filters cannot be cleaned or renewed. Simply replace them annually or when they lose effectiveness.
3Clean the vent.
If your hood vents to the outside rather than just circulates, you need to regularly check the vent that leads from the vent hood to the outside to make sure there is no grease buildup inside of it. If this grease buildup catches fire it can cause significant damage. If grease is building up, contact a vent-cleaning or heating and cooling professional to clean the vent properly.
4Pay attention to the motor fan speed and other changes in performance.
While most vent hood fan motors don’t need any maintenance, the motor and its bearings may become stiff due to the constant exposure to heat, humidity and grease. When that happens, you’ll need to replace them. Additionally, over time, the blower wheel will become greasy and dirty. This will slow down the fan or cause vibration. Remove the wheel and clean it with a degreaser. If the fan is still slow or if it vibrates after cleaning, you will need to replace the fan motor.
5Repair as needed.
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