Is it safe to take the cover off a microwave and look inside?

No. A microwave contains a high-voltage capacitor that can hold a dangerous charge even after it is unplugged. Owner-level checks stop at the outlet, the breaker, whether the door closes fully and whether the turntable is seated correctly.

I saw sparks inside the microwave. What should I do?

Stop the microwave, unplug it or switch off its breaker, and do not run it again until it has been inspected. Metal trim on a dish or foil can cause sparks, but so can a damaged waveguide cover or another internal fault.

The vent fan on my over-the-range microwave turns on by itself. Is that normal?

On many over-the-range models, yes: the fan starts automatically when the microwave senses heat rising from the cooktop below, to protect its own controls. If the fan keeps running when the cooktop is off and cool, the sensor or control should be checked.

Frigidaire Microwave Repair | Same-Day Service

Microwave Repair, Done Right the First Time

A Frigidaire over-the-range microwave works as both a microwave and a vent hood, so a failure can mean no heat, a door switch that stops it from starting, or a fan and light that quit — and the high-voltage parts inside are strictly a job for a technician.

Frigidaire sells over-the-range and countertop microwaves, plus built-in microwave options in some lines. Over-the-range units are the most involved to service because they also serve as the range hood: besides the magnetron, high-voltage diode, capacitor and door switches, they have a vent fan, a cooktop light and a heat sensor.

A microwave that runs without heating, keeps blowing a fuse or will not start with the door closed usually has one failed part in the high-voltage circuit or the door-switch set. We diagnose it on site, discharge the high-voltage section safely, and take care with the cabinet and venting around over-the-range units.

Common Microwave Problems

Microwave runs but the food stays cold

Unit will not start even with the door fully closed

Sparks or arcing inside the cavity

Vent fan or cooktop light not working

Turntable not rotating

Keypad buttons not responding

Microwave Error Codes

Recognize a code on your display? Look it up before you unplug anything or attempt a repair.

Why Trust Us With Your Frigidaire Microwave

Tested, Not Guessed | We test the suspected microwave part before recommending a replacement.
Parts for Popular Models | Common microwave parts for popular Frigidaire models travel with our technicians; less common parts are ordered and the return visit is scheduled.
Safety Comes First | Power, water and gas are shut off before we work on your microwave, and high-voltage parts are handled only by the technician.
Warranty-Aware Advice | If your microwave may still be under manufacturer coverage, we tell you so you can check that option first.

Microwave Repair, Done Right the First Time

Common Microwave Problems

Microwave Error Codes

F0

F3

F4

F5

Popular Frigidaire Microwave Models

Frigidaire Gallery FGMO205KF Built-In Microwave

Frigidaire Professional PLMV169DC Over-the-Range Microwave

Frigidaire FFMV1846VS 30-Inch Over-the-Range Microwave

Frigidaire FMOS1846BS Over-the-Range Microwave

Frigidaire Gallery GMOS1964AF Over-the-Range Microwave with Sensor Cook

Frigidaire Gallery FGMV176NTF Over-the-Range Microwave

Why Trust Us With Your Frigidaire Microwave

Microwave Repair FAQ