LG MVEL2033F Charcoal Filter Replacement – Step-by-Step Guide

8 min read

Charcoal Filter Replacement Guide

If your LG MVEL2033F over-the-range microwave is giving off unpleasant odors or struggling with ventilation in recirculating mode, the charcoal filter is probably due for a replacement. This little component does a big job by removing odors and particles from the air, and replacing it is a straightforward maintenance task that should be on your to-do list every 6-12 months.

🔨 Pro Tip from Dave

When swapping out the charcoal filter on the MVEL2033F, I always recommend using LG part number ADQ73214404 for a guaranteed fit. One mistake I’ve noticed technicians make is forgetting to check the grease filters at the same time. Clogged grease filters can force air back through the charcoal filter much quicker, cutting its lifespan significantly. Always clean or replace both together.

Understanding Ventilation Modes

Over-the-range microwaves typically operate in two ventilation modes:

  • Vented mode: Air is exhausted to the outside through ductwork
  • Recirculating mode: Air passes through the charcoal filter and returns to the kitchen

Remember, the charcoal filter is only necessary in recirculating mode. If your microwave is venting outside, you’re in the clear without one.

Symptoms of Charcoal Filter Failure

Here are some common signs that it’s time to replace your charcoal filter:

  • Cooking odors linger in the kitchen
  • Poor air quality when using ventilation
  • Filter is over 6-12 months old
  • Filter looks dirty or discolored
  • Reduced ventilation efficiency in recirculating mode

⚠️ Safety Note

Don’t forget to unplug the microwave before you start replacing the filter. Even though this is a simple task, ensuring the microwave is off is good safety practice.

Parts Needed

  • LG LT120F Charcoal Filter (Part #: LT120F)

Keep in mind that charcoal filters can’t be cleaned; they must be replaced once they become saturated with odors and particles.

Tools Required

  • None! This is a tool-free replacement
  • Optional: Step stool for better reach
  • Optional: Vacuum cleaner to clean the filter area

Step-by-Step Instructions

Step 1: Turn Off Power

Start by unplugging the microwave from the wall outlet or turning off the circuit breaker. This keeps everything safe while you’re working on the filter.

Step 2: Locate the Charcoal Filter

The charcoal filter is usually found at the top of the microwave, behind a removable grille or cover. Depending on the model, you might access it from the front or bottom. Look for a grille that can be removed easily. The filter is generally a flat, rectangular charcoal pad.

Step 3: Remove the Filter Cover

Once you find it, you’ll need to remove the cover that keeps the filter in place. This might be held by clips, screws, or could simply slide out. Gently take off the cover to access the filter. Some covers pull down easily, while others may need to be unclipped or unscrewed.

Step 4: Remove the Old Filter

Now that the cover is off, you can see the charcoal filter. Gently pull it out of its housing. It should slide out easily, but you may need to pull it from a slot. Take care—old filters can be dusty!

Step 5: Clean the Filter Housing

While you have the filter out, it’s a good time to clean the filter housing area:

  • Wipe away any dust or debris
  • Use a vacuum cleaner to get rid of loose particles
  • Clean the area where the new filter will sit
  • Make sure the housing is dry before installing the new filter

Step 6: Install the New Filter

Take the new LG LT120F charcoal filter out of its packaging. Position it in the filter housing, ensuring it fits correctly. The filter should slide into place easily. Pay attention to the orientation—most filters have an arrow or marking indicating the correct direction.

Step 7: Replace the Cover

Carefully put the filter cover or grille back on. Ensure it’s secured correctly. If it has clips, make sure they engage properly. If it has screws, tighten them securely.

Step 8: Test Ventilation

Plug the microwave back in or turn on the circuit breaker. Set the microwave to recirculating mode (if available). Turn on the ventilation fan and check that it operates smoothly. You should feel air circulating without any issues.

Replacement Schedule

To keep your charcoal filter performing well, replace it:

  • Every 6 months for heavy use (daily cooking)
  • Every 12 months for light to moderate use
  • Immediately if odors persist
  • When the filter appears heavily discolored or saturated
  • As recommended by the manufacturer

Tip: Write the installation date on the filter or set a reminder for regular replacements.

Understanding Filter Saturation

Charcoal filters work by absorbing odors and particles. Once they become saturated, they lose their effectiveness. Unlike grease filters, charcoal filters can’t be cleaned—they must be replaced. A saturated filter won’t remove odors and may even release trapped smells back into the air.

Troubleshooting

If you’re still noticing odors after you replace the filter, check the following:

  • Make sure the microwave is set to recirculating mode (not vented mode)
  • Verify that the filter is properly installed
  • Ensure the filter cover is secured correctly
  • Inspect the ventilation fan for proper operation
  • Consider whether the grease filter also needs cleaning
  • Confirm that the filter is the right type for your model

Vented vs. Recirculating Mode

Just a reminder: If your microwave is vented to the outside, you don’t need a charcoal filter. The filter is only necessary when the microwave recirculates air back into the kitchen. Be sure to check your microwave’s settings to see which mode you’re using.

When to Call a Professional

This is a simple replacement that usually doesn’t require professional help. However, you may want to call in a pro if:

  • The filter housing is damaged
  • The ventilation fan isn’t working properly
  • You’re not sure about your microwave’s ventilation mode
  • Multiple components need attention

← Back to Top 20 Microwave Models & Common Repair Issues Guide


How Much Does This Repair Cost?

Repair routeTypical cost
Do it yourself$15–$30 (parts)
Professional repair$75–$150 (parts and labor)
Costs vary by model, supplier, and local labor rates.

The replacement charcoal filter for the LG MVEL2033F usually costs between $15 and $30 for the OEM part, or $8 to $15 for a compatible aftermarket version. If you decide to call a technician for this repair, expect to pay between $75 and $150, considering the service call fee and labor. This makes it one of the most cost-effective DIY repairs you can handle.

Recommended Products

Microwave Charcoal Filter Compatible with LG Model Numbers MV-2047AQ, MVEL2033F, MV-2047BMS, LMV-1651SW, LMVM2055SW

For anyone facing stubborn odors or smoke buildup in their LG microwave, this universal charcoal filter is a must-have replacement that rejuvenates your appliance’s ventilation performance and keeps air quality in check. Specifically designed to work with the MVEL2033F model discussed here, this filter is compatible with several other LG units, eliminating the hassle of tracking down model-specific parts. Its activated charcoal construction effectively absorbs cooking odors, grease particles, and airborne contaminants, ensuring your microwave operates efficiently and your kitchen smells fresh.

Microwave Charcoal Filter for LG LMVH1750SW/00,LMVH1750ST/00, LMVH1750SB/00,MVEM1825F, MVEL2033F(2PCS)

When it comes to replacing the charcoal filter on an LG MVEL2033F microwave, having a reliable replacement handy ensures that your appliance continues to efficiently eliminate cooking odors and improve air quality. This two-pack of charcoal filters is compatible with multiple LG over-the-range models, making it a practical choice for any household with LG appliances needing future replacements. With dual filters, you’ll enjoy extended use between purchases, minimizing shopping trips and guaranteeing consistent microwave performance all year long.

Microwave Filter Replacement 7.68″ x 4.85″ JX81C WB02X10776 GE Microwave Charcoal Filter – Also Fits LG Kenmore Carbon Filter – Freshens and Filters Kitchen Air in Over the Range Oven Vent Fan 2-Pack

For those following the LG MVEL2033F charcoal filter replacement guide, this 2-pack of compatible microwave filters delivers excellent long-term value by offering replacements at a fraction of the cost of single OEM units. With dimensions of 7.68″ x 4.85″ and WB02X10776 compatibility, these filters fit LG and similar brand over-the-range microwaves perfectly. The activated charcoal effectively traps cooking odors and grease particles from the kitchen air. Having a spare filter on hand means less downtime waiting for replacements to arrive, and the dual-pack ensures you can maintain regular schedules without needing to reorder frequently.

The Charcoal Filter That Actually Stops the Recirculating Odor in Your MVEL2033F

If your LG over-the-range microwave is pulling in air but still smells stale or musty in recirculating mode, a worn-out charcoal filter is almost always the reason. This replacement filter is engineered to fit the MVEL2033F without modification, and it’ll restore your ventilation performance in one quick swap.

What works

  • Drops straight into the existing filter bracket with zero forcing—the plastic frame sits flush and the retaining clip engages on the first try, which saves you from damaging the mounting tabs.
  • The charcoal media is dense enough to actually absorb cooking odors for 6–8 months of regular use, not just move air around like a partially expired filter does.
  • Comes with clear labeling that matches the MVEL2033F spec sheet, so you’re not second-guessing whether you ordered the right part when the box arrives.

What doesn’t

  • The packaging doesn’t always specify the exact filter thickness, so if your microwave’s manual says a specific dimension, cross-check the product listing before ordering to avoid a return.
  • If your recirculating ductwork itself is blocked or the blower wheel has grease buildup, swapping the filter alone won’t fix weak airflow—you’ll need to clean the exhaust path first.

I’ve had homeowners order a universal filter first thinking it would save money, only to find out it doesn’t seat properly in the MVEL2033F bracket and the airflow stays weak. Getting the model-specific filter the first time around saves the frustration and the return shipping. Microwave Charcoal Filter Compatible with LG Model Numbers MV-2047AQ, MVEL2033F, MV-2047BMS, LMV-1651SW, LMVM2055SW