📡Microwave

MECH-FILTER

Frigidaire · Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking

Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking MECH-FILTER Error Fix: Grease/Charcoal Filter Saturated (OTR)

For over-the-range microwaves: cooking odors are not being removed, steam lingers, or the microwave exterior is greasy. The grease filter (aluminum mesh) should be cleaned monthly in hot soapy water or the dishwasher. The charcoal filter (on recirculating models) should be replaced every 6-12 months — it cannot be cleaned. A saturated grease filter also reduces ventilation airflow, which can cause overheating.

Low severity2 fixes available✨ Free fix available

Quick Answer

Error MECH-FILTER on the Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking means: Grease/Charcoal Filter Saturated (OTR). The top-ranked community fix is “Replace Charcoal Filter and Inspect Ventilation” (medium difficulty, ~30 min, DIY cost: $15-$25). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · microwave

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many microwave repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $100-$160.

Other Frigidaire Models with Error MECH-FILTER

FFCE1655US 1.6 cu ft Countertop Microwave

microwave · 2 fixes

FFCM0724LW 0.7 cu ft Countertop Microwave

microwave · 2 fixes

FFMV1846VD 1.8 cu ft Over-the-Range Microwave

microwave · 2 fixes

FFMV1846VS 1.8 cu ft Over-the-Range Stainless

microwave · 2 fixes

FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack

microwave · 2 fixes

GMBS3068AF 1.6 cu ft Gallery Built-In Microwave

microwave · 2 fixes

GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor

microwave · 2 fixes

Other Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking Error Codes

Touchpad or Temperature Sensor Error

2 fixes

Oven Temperature Exceeded Safe Limit

2 fixes

Temperature Sensor Open Circuit

2 fixes

Touchpad Key Stuck

2 fixes

MECH-DOOR

Door Latch or Switch Failure

2 fixes

MECH-LIGHT

Interior Light Burned Out

2 fixes

MECH-TURNTABLE

Turntable Motor Not Rotating

2 fixes

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

2 fixes

People Also Ask About Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking Error MECH-FILTER

What does error code MECH-FILTER mean on a Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking?

Error code MECH-FILTER on the Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking means: Grease/Charcoal Filter Saturated (OTR). For over-the-range microwaves: cooking odors are not being removed, steam lingers, or the microwave exterior is greasy. The grease filter (aluminum mesh) should be cleaned monthly in hot soapy water or the dishwasher. The charcoal filter (on recirculating models) should be replaced every 6-12 months — it cannot be cleaned. A saturated grease filter also reduces ventilation airflow, which can cause overheating.

How do I fix error code MECH-FILTER on my Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking?

The most successful fix is "Replace Charcoal Filter and Inspect Ventilation" (medium difficulty, ~30 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

Is error code MECH-FILTER on a Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking serious?

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking error MECH-FILTER myself?

Yes — the top-ranked community fix ("Replace Charcoal Filter and Inspect Ventilation") is rated medium difficulty and takes about 30 minutes. Tools needed: Phillips screwdriver, Flashlight.

How much does it cost to repair Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking error MECH-FILTER?

DIY cost: $15-$25. Professional repair typically costs $100-$160. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking have?

The Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking has 8 other known error codes, including: F1 (Touchpad or Temperature Sensor Error), F2 (Oven Temperature Exceeded Safe Limit), F3 (Temperature Sensor Open Circuit), F7 (Touchpad Key Stuck), MECH-DOOR (Door Latch or Switch Failure), and 3 more.

Which other Frigidaire models have the MECH-FILTER error?

Error code MECH-FILTER also appears on 7 other Frigidaire models: FFCE1655US 1.6 cu ft Countertop Microwave, FFCM0724LW 0.7 cu ft Countertop Microwave, FFMV1846VD 1.8 cu ft Over-the-Range Microwave, FFMV1846VS 1.8 cu ft Over-the-Range Stainless, FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack, GMBS3068AF 1.6 cu ft Gallery Built-In Microwave, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking have?

The Frigidaire Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking has 8 other known error codes:

F1 — Touchpad or Temperature Sensor Error (2 fixes)
F2 — Oven Temperature Exceeded Safe Limit (2 fixes)
F3 — Temperature Sensor Open Circuit (2 fixes)
F7 — Touchpad Key Stuck (2 fixes)
MECH-DOOR — Door Latch or Switch Failure (2 fixes)
MECH-LIGHT — Interior Light Burned Out (2 fixes)
MECH-TURNTABLE — Turntable Motor Not Rotating (2 fixes)
MECH-WAVEGUIDE — Waveguide Cover Burned — Sparking (2 fixes)

Which other Frigidaire models have the MECH-FILTER error?

Error code MECH-FILTER also appears on 7 other Frigidaire models:

FFCE1655US 1.6 cu ft Countertop Microwave (microwave) · 2 fixes
FFCM0724LW 0.7 cu ft Countertop Microwave (microwave) · 2 fixes
FFMV1846VD 1.8 cu ft Over-the-Range Microwave (microwave) · 2 fixes
FFMV1846VS 1.8 cu ft Over-the-Range Stainless (microwave) · 2 fixes
FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack (microwave) · 2 fixes
GMBS3068AF 1.6 cu ft Gallery Built-In Microwave (microwave) · 2 fixes
GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor (microwave) · 2 fixes

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