Why Your Microwave Maintenance Matters

If your apartment has an over-the-range microwave, it isn't just for reheating leftovers—it's also your range hood. It pulls smoke, steam, and grease-laden air away from your cooktop and either vents it outside or recirculates it through a filter. A little routine care goes a long way toward keeping it working properly and avoiding maintenance issues.

1. Always Use the Exhaust Fan on the Microwave When Cooking on the Stovetop

This is one of the most overlooked habits in the kitchen. Every time you use your stove burners—whether you're boiling water, searing a steak, or sautéing vegetables—turn on the exhaust fan built into your microwave. Here's why:

  • Prevents grease buildup: Cooking produces airborne grease particles that settle on walls, cabinets, and the underside of the microwave. The fan captures these before they accumulate.
  • Reduces moisture: Steam from boiling and simmering raises humidity, which can lead to mold growth on walls and cabinets over time.
  • Clears smoke and odors: The fan helps pull cooking smoke and strong smells out of your kitchen quickly.
  • Protects the microwave itself: Without the fan running, grease and moisture collect on the microwave's internal components, shortening its lifespan.

Tip: Use the low or medium fan setting for everyday cooking. Switch to high when searing, frying, or if the kitchen is getting smoky.

2. Clean the Grease Filters At Least On A Monthly Basis

The metal mesh filters on the underside of your microwave trap grease from cooking. Over time they get clogged, which reduces airflow and makes the fan far less effective. Cleaning them regularly is one of the easiest things you can do to keep your kitchen fresh.

How to clean them:

  1. Remove the filters—they usually slide or pop out from the underside of the microwave.
  2. Soak them in hot water with a few drops of dish soap or a tablespoon of baking soda for 10–15 minutes.
  3. Scrub gently with a soft brush or sponge to loosen grease.
  4. Rinse thoroughly and let them air dry completely before reinstalling.

How often: Clean grease filters at least once a month if you cook frequently, or every two to three months for lighter use.

3. Replace The Charcoal Filters (Recirculating Models) Every 9-12 Months

If your microwave recirculates air rather than venting it outside, it has a charcoal filter behind the grease filter that absorbs odors and particles. Unlike the metal grease filter, charcoal filters cannot be cleaned—they must be replaced.

  • When to replace: Every 6 to 12 months depending on cooking frequency. If you notice lingering odors even with the fan on, it's time for a new one.
  • How to find the right filter: Check your microwave's model number (usually on a sticker inside the door or on the back) and search for a compatible charcoal filter online or at a hardware store.
  • Need help? If you're unsure whether your unit vents outside or recirculates, or if you need assistance replacing the filter, submit a maintenance request through your resident portal and we'll take care of it.

4. Keep the Interior Clean

Splatters and spills inside the microwave aren't just unsanitary—they can cause odors, staining, and even damage to the interior surface over time.

  • Wipe up spills immediately after they happen, while they're still soft.
  • Steam-clean method: Place a microwave-safe bowl with one cup of water and a splash of vinegar or lemon juice inside. Microwave on high for 3–5 minutes. The steam loosens dried-on grime so you can wipe it away with a cloth.
  • Use a cover: Placing a microwave-safe cover or damp paper towel over food while heating prevents splatters in the first place.
  • Don't forget the turntable: Remove it periodically and wash it with soap and water like a regular dish.

Things to Avoid

A few quick reminders to keep your microwave in good shape and avoid safety issues:

  • Never run the microwave empty. Operating without food or liquid inside can damage the magnetron.
  • Don't use metal, aluminum foil, or metallic-trimmed dishes inside the microwave.
  • Avoid slamming the door. The door latch mechanism is one of the most common failure points.
  • Don't block the vents. Make sure nothing is stored on top of or directly against the microwave's venting areas.

When to Submit a Maintenance Request

Some issues are beyond routine care. Please submit a work order through your resident portal if you notice any of the following:

  • The exhaust fan is making unusual noises or has stopped working
  • The microwave sparks, smells like burning, or shuts off unexpectedly
  • The interior light doesn't turn on
  • The door doesn't latch properly
  • The turntable isn't spinning
  • You need help identifying or replacing a charcoal filter

We're happy to help with anything that's beyond basic cleaning and upkeep. Taking a few minutes each month to maintain your microwave keeps your kitchen cleaner, your air fresher, and helps us keep appliances running longer for everyone.