Frigidaire GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor MECH-LIGHT Error Fix: Interior Light Burned Out

Error code MECH-LIGHT on the Frigidaire GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor means: Interior Light Burned Out. The interior light does not illuminate when the door is opened or during cooking. Replace the light bulb with a microwave-rated appliance bulb. On some models, the bulb is accessed from inside the cavity behind a cover panel; on others, it is accessed from the outside with a cover removed. Use the correct wattage bulb specified in the owner manual.

The most successful fix is "Replace the Interior Light Assembly" (medium difficulty, ~30 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

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

Yes — the top-ranked community fix ("Replace the Interior Light Assembly") is rated medium difficulty and takes about 30 minutes. Tools needed: Phillips screwdriver, Multimeter, Socket wrench set.

DIY cost: $15-$25. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Frigidaire GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor 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.

Error code MECH-LIGHT 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, Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.