Question 1

why does my frigidaire microwave keep tripping the fuse as soon as i press start?

Accepted Answer

DIAGNOSIS An immediate circuit trip points to a direct short or a massive power draw. The usual suspects are a dead short in the high-voltage circuitry (diode, capacitor, or magnetron) or a failed component that's grounding out. FIX Before you suspect the microwave, rule out your kitchen's electrical circuit. 1) Plug the microwave into a different, known-good 20-amp outlet on a different circuit (maybe using a heavy-duty extension cord temporarily for a test). If it works there, your kitchen outlet or wiring is the issue. 2) If it still trips the breaker on a different circuit, the problem is inside the microwave. IF THAT DIDN'T WORK If the microwave trips breakers on multiple circuits, it has an internal fault. This is not a DIY fix. The high-voltage components hold a dangerous charge even when unplugged. Diagnosing which part (magnetron, capacitor, diode, or transformer) has shorted requires specialized tools and knowledge. Time to call an appliance repair technician. HEADS UP Never, ever try to open the microwave cabinet to investigate a tripping breaker yourself. The capacitor can store a lethal shock long after it's unplugged. This is one of the most dangerous repairs in home appliances.

Question 2

i can't get the vent on this thing to switch from recirculating to outside venting, it just seems stuck

Accepted Answer

DIAGNOSIS This model has a manual vent damper that you physically set during installation. If it's not venting outside, the damper is likely still in the 'recirculate' position, or the external ductwork is blocked or disconnected. FIX First, check the damper position inside the microwave. 1) Remove the grease filters. 2) Look up into the vent opening. You should see a metal damper (a flap). If it's horizontal (closed), that's recirculate mode. If it's vertical (open), that's outside venting. 3) To change it, you'll need to reach in (maybe with pliers) and carefully rotate the damper shaft 90 degrees. It might be stiff. You want it open for outside venting. IF THAT DIDN'T WORK If the damper is open but you still get no airflow outside, the problem is in your ductwork. Check the exterior wall or roof cap for a stuck or frozen damper, or a bird's nest blockage. Also, ensure the flexible duct from the microwave to the wall hasn't collapsed or come disconnected—this often happens if it was poorly installed. HEADS UP The fan speed will sound different between recirculate and vented modes because it's working against different air pressures. If you switch to outside venting, make sure the fan isn't just running with the damper closed, as that strains the motor.

Question 3

the touchpad on my frigidaire microwave isn't responding, some buttons work and others don't

Accepted Answer

DIAGNOSIS Sporadic or dead buttons on a touchpad are typically caused by a failing membrane switch behind the panel. Moisture, grease, or just wear and tear can break the electrical connections. FIX Start with a deep clean. 1) Unplug the microwave. 2) Make a solution of mild dish soap and water. Dampen (don't soak) a soft cloth. 3) Gently but thoroughly wipe the entire touchpad surface, paying extra attention to the non-responsive buttons. 4) Use a dry cloth to completely dry the panel. 5) Plug the unit back in and wait a minute before testing. The cleaning can sometimes restore contact. IF THAT DIDN'T WORK If specific buttons remain dead, the membrane switch assembly is likely damaged and needs replacement. This is a single unit behind the entire front panel. Replacing it is a detailed disassembly job, as you have to remove the control panel to access it. HEADS UP Never use abrasive cleaners or scrubbing pads on the touchpad, as they can scratch the protective layer and cause permanent damage. Also, if the 'Start' button fails, you can often use the number pad (press '1' then 'Start') as a workaround for a 1-minute cook time.

Question 4

my frigidaire microwave just beeps continuously for no reason, even with the door closed

Accepted Answer

DIAGNOSIS A non-stop beeping chorus is usually the control board's way of signaling an error it can't display. The most common trigger is a faulty door switch—a safety component that tells the microwave the door is securely latched. FIX First, try a hard reset. 1) Unplug the microwave from the wall. 2) Wait two full minutes. 3) Plug it back in. This can clear a temporary glitch. If the beeping starts again immediately, focus on the door. 4) Open and close the door firmly several times, listening for a distinct 'click' of the latch engaging. Sometimes debris on the latch hook can prevent a full close. IF THAT DIDN'T WORK If the beeping persists, one of the door switches is likely stuck open or closed. These are mechanical switches behind the door latch area. Diagnosing and replacing them requires taking off the outer cabinet, which involves dealing with high-voltage components. This is a job for a qualified technician. HEADS UP Do not try to use the microwave while it's beeping incessantly. The safety system is confused, and it may not start, or worse, could operate with the door perceived as open. Unplugging it is the safe move until it's fixed.

Question 5

the light bulb under my frigidaire microwave burnt out, how do i even change that thing?

Accepted Answer

DIAGNOSIS The cooktop light is housed in a sealed assembly behind a lens cover underneath the microwave. It's a specific halogen bulb (often 50W G9 base) not a standard household bulb. FIX Safety first: make sure the microwave is unplugged. 1) Look under the unit. You'll see a clear or frosted plastic lens cover. 2) On one side of this cover, there's a small plastic tab. Gently press the tab inward while pulling down on that side of the cover. It should hinge down. 3) You'll now see the bulb socket. Let the bulb cool completely if it was recently on. 4) Pull the old bulb straight out of the socket—don't twist it. 5) Push the new replacement bulb (make sure it's the correct halogen type) firmly into the socket. 6) Swing the lens cover back up until it clicks into place. Plug the unit back in. IF THAT DIDN'T WORK If the new bulb doesn't light, double-check that it's seated all the way in the socket. If it still doesn't work, the issue could be with the light socket or the control board, which is a more involved repair. HEADS UP Handle the new halogen bulb with a clean cloth or gloves. The oils from your skin can create hot spots on the bulb glass when it's on, causing it to fail prematurely. Also, never use a bulb with a higher wattage than specified.

Question 6

how do i get the damn turntable to stop squeaking every time it rotates, it's driving me nuts

Accepted Answer

DIAGNOSIS That high-pitched squeak is almost always friction between the plastic turntable roller ring (the track on the bottom of the glass plate) and the three plastic support wheels inside the microwave cavity. FIX You need to clean and lubricate the moving parts. 1) Remove the glass turntable and the plastic roller ring underneath it. Wash both in warm soapy water, drying thoroughly. 2) Wipe the three small plastic support wheels inside the microwave floor with a damp cloth to remove any grease or food grit. 3) Apply a tiny, tiny drop of food-safe silicone lubricant (like for kitchen appliances) to the groove in each support wheel. Do not use cooking oil—it will gum up. 4) Reassemble. The squeak should be gone. IF THAT DIDN'T WORK If the squeak persists, inspect the roller ring for cracks or deep wear grooves. Also, check that the glass plate is sitting perfectly flat and isn't cracked. A warped or damaged ring or plate can cause uneven pressure and noise. HEADS UP Make sure the turntable and ring are seated correctly. If the ring is off its track or the plate is off-center, it can bind and squeak. The arrows on the plate and the hub should line up.

Question 7

the vent fan on my frigidaire microwave is crazy loud on any setting, sounds like a jet engine

Accepted Answer

DIAGNOSIS That's usually the fan motor itself getting noisy. Over time, the bearings can wear or dry out, or the fan blade can get slightly warped or unbalanced from heat, causing a loud humming or grinding vibration. FIX First, rule out an obstruction. 1) Remove the grease filter(s) below the microwave. 2) Look up into the vent opening with a flashlight. Check for any debris—like a piece of packaging foam or a napkin—that might have fallen in during installation. Remove it if you can safely reach it. 3) Reinstall the filters. Often, just reseating the metal filters can change the resonance and quiet it down a bit. IF THAT DIDN'T WORK If the noise is clearly a mechanical grind from inside the unit, the fan motor assembly is likely the culprit. Replacing it involves taking the microwave down and opening the top casing, which is a significant repair. For a persistent, severe noise, a professional appliance tech is your best bet. HEADS UP Don't ignore a fan that gets progressively louder and then stops working entirely. That motor also helps cool the magnetron (the part that makes the microwaves). Letting it fail can lead to a more expensive breakdown.

Question 8

my frigidaire microwave just shows PF and won't start, i already tried unplugging it

Accepted Answer

DIAGNOSIS PF stands for Power Failure. The microwave's clock board lost power briefly, and it's stuck in a reset state, usually from a brownout or a tripped circuit. FIX You need to perform a full power reset. 1) Unplug the microwave from the wall outlet. 2) Wait a full 60 seconds. 3) Plug it firmly back in. 4) Immediately press the 'Clock' or 'Kitchen Timer' button to set the time of day. Once the clock is set, the PF message should clear and normal functions will return. IF THAT DIDN'T WORK If the PF message comes back immediately or the unit is completely dead, check your kitchen's 20-amp circuit breaker. It's possible the breaker tripped or is faulty. Reset it firmly to the OFF position, then back ON. Also, ensure nothing else is overloading that same circuit. HEADS UP If PF becomes a frequent problem, it's often a sign of unstable voltage in your home (like from a sump pump or AC unit kicking on) or a failing control board. Using a dedicated outlet for the microwave is ideal.

Frigidaire FGMV17WNVF Over-the-Range Microwave

Other Microwaves