Grease Filter Replacement Guide
If your Frigidaire FGMV17WNVF over-the-range microwave has reduced ventilation or grease accumulation, the grease filter needs cleaning or replacement. The grease filter traps cooking grease and prevents it from entering the ventilation system. A dirty or clogged filter is a fire hazard and reduces ventilation efficiency. This is an EASY maintenance task that should be done regularly.
🔨 Pro Tip from Dave
One thing most people miss on the FGMV17WNVF is that the aluminum mesh grease filter (part number 5304464090) has a small tab release that can feel stuck if grease has hardened around it — never force it or you’ll bend the frame. Always soak a clogged filter in hot degreaser solution first to see if it’s salvageable before buying a replacement. Also, this model uses two filters side by side, so replace both at the same time to maintain even airflow.
Why Grease Filters Matter
Grease filters are critical for safety and performance:
- Prevent grease from entering ventilation ducts (fire hazard)
- Maintain proper airflow and ventilation efficiency
- Reduce odors from cooking
- Protect the ventilation fan motor from grease buildup
- Required for proper operation of over-the-range microwaves
A clogged filter can cause the ventilation fan to work harder, reduce airflow, and create a fire hazard from accumulated grease.
When to Clean or Replace
Clean the filter monthly, or replace it if:
- Filter is heavily coated with grease (can’t be cleaned effectively)
- Filter is damaged, bent, or has holes
- Filter is more than 6-12 months old
- Ventilation is still poor after cleaning
- Filter shows signs of deterioration
Parts Needed
Frigidaire 5304464105 grease filter – Amazon (Part #: 5304464105)
Note: If your filter is just dirty, you can clean it instead of replacing. Only replace if it’s damaged or heavily soiled.
Tools Required
- Dish soap or degreasing cleaner
- Warm water
- Soft brush or sponge (for cleaning)
- Clean cloth or paper towels
- Step stool or ladder (if needed to reach filter)
Step-by-Step Instructions
Step 1: Locate the Grease Filter
The grease filter is located on the bottom of the microwave, directly above the cooktop. It’s a metal mesh filter that slides out. Look for a release lever, button, or tab on the front edge of the filter.
Step 2: Remove the Filter
Press the release lever or pull the tab to release the filter. The filter should slide forward and down. Some models have filters that tilt down and then slide out. Pull the filter straight out, being careful not to spill any accumulated grease.
Step 3: Inspect the Filter
Examine the filter for:
- Amount of grease buildup
- Damage (bent, holes, or deterioration)
- Clogging (grease blocking the mesh)
- Overall condition
If the filter is heavily soiled or damaged, replace it. If it’s just dirty, proceed with cleaning.
Step 4: Clean the Filter (If Reusing)
If you’re cleaning the existing filter:
- Fill a sink or basin with hot, soapy water
- Submerge the filter completely
- Let it soak for 15-30 minutes to loosen grease
- Use a soft brush or sponge to gently scrub away grease
- Rinse thoroughly with warm water
- Allow to air dry completely before reinstalling
Important: The filter must be completely dry before reinstalling to prevent mold growth.
Step 5: Clean the Filter Housing
While the filter is removed, clean the filter housing area:
- Wipe away any accumulated grease or debris
- Clean the area where the filter sits
- Remove any food particles or buildup
- Ensure the housing is dry before reinstalling the filter
Step 6: Install the New or Cleaned Filter
If installing a new filter, remove it from the packaging. Position the filter so it slides into the housing correctly. The filter should slide in smoothly and lock into place. You may hear a click when it’s properly seated. Ensure the filter sits flush and is properly aligned.
Step 7: Verify Installation
Check that the filter:
- Is properly seated and locked in place
- Sits flush with the bottom of the microwave
- Doesn’t wobble or move when touched
- Is properly aligned (not crooked)
Step 8: Test Ventilation
Turn on the ventilation fan and verify it operates properly. The fan should run smoothly without excessive noise. Airflow should feel strong. If ventilation is still poor after cleaning/replacement, check the charcoal filter (if using recirculating mode) or inspect the ventilation ductwork.
Maintenance Schedule
To keep your grease filter working properly:
- Clean monthly if you cook frequently
- Clean every 2-3 months for light use
- Replace every 6-12 months depending on use
- Check the filter more often if you notice reduced ventilation
- Clean immediately if you notice excessive grease buildup
Troubleshooting
If ventilation is still poor after cleaning/replacement:
- Check the charcoal filter (if using recirculating mode)
- Inspect the ventilation fan for damage or obstruction
- Check the ventilation ductwork for blockages
- Verify the microwave is set to the correct ventilation mode
- Ensure the exterior vent cover (if vented outside) is not blocked
Fire Safety Warning
A clogged or dirty grease filter is a FIRE HAZARD. Grease buildup can ignite if exposed to high heat. Never operate your microwave with a heavily soiled filter. Regular cleaning is essential for safety.
← Back to Top 20 Microwave Models & Common Repair Issues Guide
How Much Does This Repair Cost?
Replacement grease filters for the FGMV17WNVF typically run $8–$18 per filter, and since you need two, budget $16–$36 in parts. A professional service call for this same job would cost $80–$150 once you factor in the labor and trip charge — clearly not worth it for this straightforward repair.
Recommended Products
These are the parts and tools we recommend for this repair, based on compatibility and customer reviews:
- Microwave Filter Replacement 5.12” x 7.64” Fits Frigidaire 5304464105 WB06X10608 GE Microwave Filter – Aluminum Mesh Screen Grease Filter – Filters Air Entering Over the Range Oven Vent Fan (2-Pack)
- Microwave Filter Replacement 5.12” x 7.64” Fits Frigidaire 5304464105 WB06X10608 GE Microwave Filter – Aluminum Mesh Screen Grease Filter – Filters Air Entering Over the Range Oven Vent Fan (4-Pack)
- WB6X486 GE Microwave Filter Replacement 9″ x 7.72″ Fits
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The OEM Filter That Stops Grease Buildup on the FGMV17WNVF
This is the genuine Frigidaire part, and it’s what I reach for every time on this model—it fits perfectly and handles the airflow without restriction. Most homeowners find ordering the exact OEM filter saves time and eliminates any second-guessing about compatibility.
What works
- Slides in and seats flush against the mounting clips—no forcing or gaps that let unfiltered air bypass the mesh.
- Aluminum mesh is heavy enough to last 6–12 months under normal kitchen use before you notice grease saturation.
- Genuine part means you’re not dealing with aftermarket mesh that tears or clogs faster than the original design intended.
What doesn’t
- Slightly more expensive than generic multi-pack filters, though the fit and durability justify it on this model.
- If your model number is actually different (check the back of your microwave first), this won’t fit—Frigidaire changed the filter dimensions across their OTR lineup.
I once had a customer order a generic 4-pack thinking it would work better value—but the frame was 1/8″ wider and wouldn’t clip in properly. That 15-minute phone call could’ve been avoided by starting with the OEM part. Frigidaire 5304464105 grease filter – Amazon
Frigidaire 5304464105 Grease Filter
I’ve swapped enough aftermarket filters to know this genuine part doesn’t tear or clog prematurely.
Check Price on Amazon →Before ordering, match the part number to your appliance’s model tag — most “defective” part returns are wrong-model orders.
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