How to Clean and Maintain Your Broan Ventilation Hood

What Broan makes and where you'll find it

Broan is a manufacturer of ventilation hoods for kitchens, bathrooms, and laundry rooms. You'll recognize their name on the hood mounted above your stove, in your bathroom exhaust fan, or on a range hood that pulls steam and cooking odors out of your kitchen. Broan has been making these products since 1932, and their hoods are common in both new construction and existing homes.

Because Broan hoods work by pulling air through filters and ducts, they need regular cleaning to stay effective. A clogged filter or dirty damper loses suction, leaves grease and moisture in your kitchen, and can eventually fail. The good news is that maintenance is straightforward and takes only a few minutes per month.

Key Takeaways

• Broan hoods have replaceable filters that should be cleaned or replaced every one to three months, depending on how much you cook.
• Grease buildup on the filter is the most common reason a Broan hood loses suction, and it can be washed out with hot water and dish soap.
• The damper inside the duct can stick shut from grease accumulation, so check it during your annual cleaning to make sure it swings freely.
• Most Broan models have a light bulb you can replace yourself, and the hood housing should be wiped down monthly to prevent grease film.

Cleaning the filter on your Broan hood

The filter is the part that traps grease and cooking particles before they travel into your ductwork. On most Broan models, the filter slides or clips out from underneath the hood. Push up gently on the filter frame, twist or slide it sideways, and it will come free. Do this over a sink or trash can because grease will drip.

Fill your sink or a large basin with hot water and add a few squirts of dish soap. Submerge the filter and let it soak for 10 to 15 minutes. Use a soft brush or an old toothbrush to scrub both sides, paying attention to the mesh where grease collects. Rinse under running hot water until the water runs clear. Shake off excess water and let it air-dry completely before sliding it back into the hood. Never put a Broan filter in the dishwasher unless the manual specifically says it is safe to do so.

If the filter is damaged, torn, or no longer cleans properly even after soaking, it is time to replace it. Broan sells replacement filters by model number, and you can find yours on a sticker inside the hood or in your manual. Order the exact replacement for your model to ensure proper fit and airflow.

How often to clean or replace your filter

The schedule depends on how much you cook and what you cook. If you use your stove daily and fry or sauté often, clean the filter every month. If you cook occasionally or mostly use the microwave, every two to three months is usually enough. A simple test: hold the filter up to a light. If you cannot see through the mesh clearly, it is time to clean it.

After cleaning the filter five to ten times, it may no longer trap grease as well as it did when new. At that point, replace it rather than continuing to wash it. A new filter costs between $15 and $40 depending on the model and is worth the investment because a clean filter keeps your kitchen cleaner and your hood working at full power.

Checking and cleaning the damper

Inside the duct where your hood vents to the outside, there is a damper—a flap that opens when the hood runs and closes when it stops. This prevents cold air from flowing backward into your kitchen. Over time, grease can build up on the damper hinge, causing it to stick or not close completely.

To check the damper, turn off the hood and look at the duct opening on the outside of your house (or in the attic if your hood vents there). The damper should swing freely. If it feels stiff or does not close all the way, you can clean it with a cloth and a degreaser. Spray the hinge lightly with a kitchen degreaser, wait a few minutes, and wipe it clean. Work the damper back and forth gently until it moves smoothly. Do not force it, as the hinge can bend.

Wiping down the hood housing and light

The metal or plastic housing of your Broan hood collects a fine film of grease and dust every time you cook. Wipe it down monthly with a damp cloth and a little dish soap. For stainless steel hoods, use a cloth dampened with a stainless steel cleaner or a few drops of mineral oil to restore shine and prevent fingerprints.

Most Broan hoods have a light bulb or two inside. If the light stops working, turn off the hood at the breaker, wait a few minutes, and then unscrew the old bulb. Check your manual or the socket to see what wattage and base type you need—common sizes are 40-watt or 60-watt incandescent, or LED equivalents. Screw in the new bulb, turn the power back on, and test it. LED bulbs last much longer than incandescent and produce less heat, which is useful in a space where cooking heat is already present.

Dealing with noise and weak suction

If your Broan hood is suddenly loud or not pulling steam and odors as well as it used to, a clogged filter is almost always the cause. Clean or replace the filter first. If suction is still weak after that, check whether the damper is stuck closed or whether the duct is kinked or blocked. A kinked flexible duct can be straightened by hand. A blocked duct may need a professional to clear it.

Noise can also come from a loose mounting bolt or a vibrating damper. Check that the hood is bolted securely to the wall or cabinet. If the damper is rattling, make sure it is not bent and that the hinge is not too loose. Tighten any loose hardware with a wrench, but do not over-tighten, as you can crack the housing.

Storing your Broan manual and finding replacement parts

Your Broan manual contains the model number, filter size, and wiring diagram specific to your hood. Keep it in a folder with other appliance manuals, or take a photo of the cover and model number and save it to your phone. If you lose the physical manual, you can search for it online using your model number, which is printed on a sticker inside the hood or on the back of the unit.

Replacement filters, dampers, and light bulbs are sold through Broan's website, through major appliance retailers, and through online marketplaces. Always order by model number to ensure the part fits. If you are unsure which part you need, call Broan's customer service line or consult a local appliance repair shop. They can often tell you over the phone whether a part is available and how much it costs.

Frequently Asked Questions

Can I wash a Broan filter in the dishwasher?

Most Broan filters should not go in the dishwasher because the high heat and harsh detergent can damage the mesh or frame. Hand-wash it in hot soapy water instead. Check your manual to see if your specific model is dishwasher-safe, as some newer filters are designed to tolerate it.

What should I do if my hood is leaking water?

Water in a hood usually means the damper is stuck open or the duct is sagging and collecting condensation. Check that the damper swings freely and that the duct slopes slightly downward toward the outside. If the duct sags, it may need to be repositioned or supported with a bracket. This is a job for a professional if you are not comfortable working in an attic or on a roof.

How do I know if my Broan hood is vented outside or recirculating?

Look at the back or top of the hood. If you see a duct going to a wall or roof, it is vented outside. If there is no duct and the hood has a charcoal filter cartridge instead of a metal mesh filter, it is recirculating. Recirculating hoods need the charcoal filter replaced every three to six months because it cannot be washed.

Why is my Broan hood not turning on?

Check that the power switch is on and that the hood is plugged in or wired to a live circuit. If it is plugged in, try a different outlet to rule out a tripped breaker. If it is hardwired, check the breaker panel. If the breaker keeps tripping, there may be an electrical fault and you should call a licensed electrician.

Can I paint or refinish my Broan hood?

You can paint a Broan hood if it is not stainless steel. Turn off the power, remove the filter, and clean the housing thoroughly. Use a metal primer and then a heat-resistant paint rated for kitchen appliances. Avoid painting the motor or any moving parts. If your hood is stainless steel, painting will void the finish and is not recommended.