10 Tips for Maintaining Commercial Kitchen Range Hoods: Professional Guide

(1) Aging of the line

Regularly check the electrical circuit of the range hood and replace aged wires in time.

(2) Loose wiring

Check whether the wiring is loose to avoid fire caused by poor contact.

2. Understand filter types

Commercial kitchen range hoods are usually equipped with multiple types of filters, including metal grease filters and activated carbon filters. Metal grease filters can be reused, while activated carbon filters need to be replaced regularly. Understanding the type and characteristics of the filter will help you choose the appropriate cleaning or replacement method.

3. Cleaning metal grease filters

First, remove metal grease filters. Then, soak them in a mixture of hot water and degreaser for about 15-30 minutes. After washing, use a soft brush or sponge to scrub, paying special attention to areas with more grease and dirt accumulation. Finally, rinse the filter thoroughly with hot water to remove residual grease and detergent. Make sure the filter is completely dry before reinstalling it.

4. Replace activated carbon filters

Activated carbon filters are commonly used in recirculating range hoods. Their main function is to absorb odors and harmful gases. This type of filter has a relatively short service life, and it is generally recommended that it be replaced every 1-3 months. When replacing, make sure that the size of the new filter matches the original equipment and that it is installed in accordance with the correct installation method.

5. Check the fan blades regularly

The fan blades are one of the core components of the range hood, responsible for inhaling air and exhausting oil smoke. It is recommended to check the fan blades every 6 months to ensure that they are working correctly. If grease or dust is found on the fan blades, they should be wiped with a microfiber cloth, and avoid using liquid cleaners that may damage the motor.

(1) Abnormal noise and vibration

If the fan makes abnormal noise or vibration when it is running, it may be due to bearing wear or deformation of the fan blades, which requires timely repair or replacement.

(2) Exhaust efficiency

If the exhaust efficiency is found to be reduced, it may be due to insufficient fan speed or blockage of the exhaust duct, which requires timely investigation.

6. Clean the inside of the range hood

When cleaning the inside of the range hood, a non-abrasive degreaser should be used. First, after removing the filter, use a degreaser to remove the grease deposits in the exhaust port. 

7. Keep the outside of the range hood clean

The outside of the range hood is prone to dust and oil, which affects its appearance and performance. After each use, it is recommended to wipe the outer surface of the range hood, the outside of the air inlet, and the filter with a damp cloth. This not only keeps the equipment clean but also extends its service life.

(1) Internal oil stains

Use a long-handled brush and detergent to clean the oil stains inside the range hood, especially at the exhaust duct connection.

(2) Stubborn oil stains

For stubborn oil stains, you can use a steam cleaner for high-temperature steam cleaning.

8. Check and clean the flue

The range hood's flue is an important channel for oil smoke exhaust and needs to be cleaned regularly. Use a long-handled brush and detergent to brush the flue, making sure to brush the inside of the flue. During the cleaning process, avoid using metal tools to avoid damaging the flue.

(1) Pipe blockage

Check the exhaust duct regularly to see if it is blocked, and clean the oil stains and debris in it as soon as possible.

(2) Duct sealing

Check the tightness of the exhaust duct to avoid smoke and oil leakage.

9. Regular maintenance and professional inspection

Even if daily maintenance is done correctly, the range hood still needs regular professional inspection and maintenance. It is recommended to perform skilled maintenance every two years, and for kitchens with high frequency of use, it should be performed once a year. Professional maintenance can detect potential problems in time, extend the service life of the equipment, and ensure its regular operation.

(1) Cleaning frequency

Develop a reasonable cleaning plan based on the kitchen's frequency of use and cooking type. For kitchens with high intensity of use, it is recommended to perform deep cleaning once a week and surface cleaning every day.

10. Record maintenance log

Create a maintenance log to record the time of each cleaning and filter replacement, the cleaning agent used, the problems found, and the solution. This not only helps to track the maintenance of the equipment but also provides a reference for future maintenance work. 

11. Additional tips

(1) Install fire prevention devices

Installing automatic fire extinguishing devices in the range hood can effectively prevent fires.

(2) Keep the kitchen ventilated

Maintaining a good ventilation environment in the kitchen effectively reduces the accumulation of oil smoke.

(3) Use an efficient oil fume purifier

Installing an efficient oil fume purifier can effectively purify oil smoke and improve the kitchen environment.

Conclusion

Maintenance of commercial kitchen range hoods may seem tedious, but it is a key link to ensuring the safe and efficient operation of the kitchen. By following the above 10 professional tips, you can effectively extend the range hood's service life, reduce malfunctions, and create a safer and cleaner working environment for chefs and staff.