My microwave heats, but the vent fan does not work. Can that be fixed?

Usually. The fan motor, its switch or the control that runs it may have failed, and on most models each part can be replaced on its own.

The vent fan turns on by itself. Is it broken?

Many models start the fan automatically when they sense heat from the cooktop below. If it runs with the cooktop cold, a sensor or control may be at fault, and we can test it.

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Home/Hillsborough County/Brandon & Valrico/Microwave Repair

Microwave repair in Brandon and Valrico, FL

In most Brandon and Valrico kitchens the microwave hangs over the range and doubles as the hood. When it stops heating or venting, we find out which part quit. We cover 6 ZIP codes in Brandon & Valrico.

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Hillsborough County

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Doors, Grease and High Voltage

A household microwave gets opened and slammed many times a day, and the door switches take that abuse. A failed switch often blows the internal fuse, leaving the unit dead. If it lights and turns but does not heat, the magnetron, high-voltage diode or capacitor is a likely culprit. Grease from the burners below clogs the filters and wears the vent fan, light and turntable motor.

Do not open the cabinet, since the capacitor can hold a dangerous charge even when unplugged. Clean the grease filters, check the breaker, and test with a cup of water for one minute. If it sparks, stop using it.

Built-Ins, Rentals and Honest Advice

Built-in microwave drawers and wall units in larger Valrico kitchens have trim kits and drawer mechanisms, which the technician removes and refits with care. Brandon apartments and rentals often have the same over-the-range model in every unit, and the owner or manager gets the diagnosis and price. On a budget model with a failed magnetron, replacement may make more sense, and we say so.

Before You Book: Microwave Checks

Safe first steps for the most urgent microwave problems, and when to leave it to a technician.

Sparking InsideSafety: End the cycle right away and unplug the microwave. Before running it again, remove any foil or twist ties and any dish with metallic trim.
Sparking Inside MicrowaveSafety: Unplug the microwave and wash the cavity with a mild detergent, especially the waveguide cover, the small panel on the side wall.
Runs with Door OpenSafety: Unplug the microwave right away and keep it out of use until it has been repaired. This is not something to attempt yourself.
Sparking from Turntable Tray AreaSafety: Unplug the microwave, lift out the tray and roller ring, and clean the cavity floor thoroughly while checking for spots of bare metal.

Symptoms, causes and repair-or-replace advice for every type of microwave are in our complete microwave repair guide.