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Range Hood Dripping Grease - Filters Clogged or Baffle System Failing

Grease dripping from the range hood means the filters are shot or the baffles are clogged. The grease is not being captured - it is falling straight through into the kitchen.

Category:Kitchen
Difficulty:Easy
Time:20 min
Success:50%
Updated:May 27, 2026

quick_referenceQuick Answer

For Range Hood Dripping Grease - Filters Clogged or Baffle System Failing, start with "Remove the filters and hold them up - if light does not pass through easily, replace them": Pop out each filter. Look at it against a light source. If you cannot see through the mesh or baffles at all, they are completely saturated. Even after cleaning, saturated filters will not capture grease properly - they need replacement. Stop DIY if water is getting into the fan motor cavity - do not spray water directly at the motor. This is listed as a easy recovery and usually takes about 20 min.

verifiedGuide Snapshot

Repair areaKitchen
Estimated time20 min
DifficultyEasy
Stop conditions4

Last updated May 27, 2026. Review the stop conditions before continuing.

account_treeRecovery State

DeviceRange Hood
Current stateDripping Grease
Specific stateFilters Saturated
Failed stepFilter Inspection
Likely failure typeBlocked Path
DIY boundaryDIY recovery first
paymentsCost decision

help1. Understand the Problem

Range hoods work by pulling air up through filters. When grease drips instead of collecting, the filters are so clogged that air cannot pass through, so the velocity drops and grease falls out of suspension before it reaches the trap. Mesh filters that are saturated and heavy need replacement. Baffle filters that are layered with grease also stop working.

build_circle2. Try This First

Best First Step

Remove the filters and hold them up - if light does not pass through easily, replace them

Pop out each filter. Look at it against a light source. If you cannot see through the mesh or baffles at all, they are completely saturated. Even after cleaning, saturated filters will not capture grease properly - they need replacement.

visibility3. Visual Guidance

See what's happening and how to try the first recovery step.

1
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Soak the filters in hot water with dish soap and baking sodaIf the filters are not completely clogged, soak them for 30 minutes in very hot water with dish soap and 1/4 cup of baking soda. The baking soda cuts grease. Use a scrub brush to loosen the remaining buildup. Rinse thoroughly and dry completely before reinstalling.
2
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Clean the interior baffle channel where grease accumulatesAbove the filters, the hood has a baffle - a metal panel that deflects grease into the collection tray. If the baffle is coated, wipe it down with a degreaser solution. The grease collection tray at the bottom should also be emptied and cleaned - it fills up over time and overflows.
3
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Check if the fan is running at proper speed - low speed means low air velocityGrease falls when air velocity is too low to keep it suspended. If you have been using the fan only on low, switch to high. The higher air speed captures more grease and keeps it moving to the filter. Low speed is fine for simmering - high is needed for frying and searing.

autorenew4. If That Doesn't Work

Try the next recovery options.

build
Replace mesh filters with charcoal filters if you cannot clean themCharcoal filters (for ductless hoods) are not cleanable - they are designed to absorb odor and are discarded when saturated. If your filters are the disposable type, replace them every 6-12 months depending on cooking frequency.
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cleaning-services
Clean the exhaust fan wheel if it is caked with greaseThe exhaust fan wheel (squirrel cage) behind the filters gets coated with grease over time. Remove the filters and clean the fan blades with a degreaser. A caked fan wheel reduces air velocity and causes the same dripping problem as clogged filters.
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Frequently Asked Questions

How often should I clean range hood filters?expand_more
Every 1-3 months depending on how much you cook. Heavy frying = monthly. Simmering only = quarterly. Saturated filters are a fire hazard - grease buildup on a hot motor can ignite.
Can I put range hood filters in the dishwasher?expand_more
Yes for metal mesh filters - top rack only, no fragrance detergent. The dishwasher will clean them better than hand-washing. Baffle filters can also go in the dishwasher. Let them dry completely before reinstalling.
Is a dripping range hood dangerous?expand_more
Yes - grease buildup near the motor is a fire hazard. A range hood that is not capturing grease effectively also means smoke and combustion gases are not being vented, which is a health hazard.

warning5. Stop DIY If

Don't continue if any of these apply.

reportWater is getting into the fan motor cavity - do not spray water directly at the motor.
reportThe grease collection tray at the bottom of the hood is cracked and leaking - replace the tray.
reportYou see rust inside the hood - rust eventually eats through the hood surface. Replacement may be needed.
reportThe dripping grease is near electrical components - do not run the hood until the components are cleaned and dried.
Still stuck?Get personalized help with AI Recovery.

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Same Device Recovery States

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Range hood fan deadA range hood fan that does nothing when you flip the switch has either a failed motor, a bad capacitor, or a thermal overload that tripped. The switch itself is rarely the problem.
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Range hood light deadA dead range hood light usually isn't the bulb. The socket, switch, or control board is failing — trace the power to find the real culprit.
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Range hood no suctionA range hood that runs but doesn't pull smoke or steam means clogged filters or a blocked duct. Restore airflow before grease buildup becomes a fire hazard.

Similar Failure Pattern

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This page provides general DIY guidance.
If you're unsure, it's always best to consult a professional.