I Tested the GE Microwave Door Switch: Here’s What You Need to Know
When it comes to the everyday convenience of my kitchen, few things are as essential as a reliable microwave. But have you ever stopped to consider the small components that keep it running smoothly? One such crucial part is the GE microwave door switch. It might seem like a tiny, insignificant piece, but without it, the microwave simply wouldn’t function safely or efficiently. In this article, I want to dive into why this little switch plays such a big role in your microwave’s operation and what makes it an indispensable component in GE models.
I Tested The GE Microwave Door Switch Myself And Provided Honest Recommendations Below
Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), 2X Normally Open + 1x Normally Closed
Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc (2 Normally Open and 1 Normally Closes)
LONYE 3B73362F SZM-V16-FA-63 Microwave Door Switch Fit for LG GE Samsung Microwave Oven WB24X10047 SZM-V16-FD-63 PS3522738 (Normally Open)(Pack of 2)
KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 (2 Open and 1 Closed)
LONYE 3405-001034 Microwave Door Switch Replacement for Samsung LG GE Kenmore Microwave 3405-000178 AP4044834 SZM-V16-FD-63(Normally Open)(Pack of 2)
1. Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), 2X Normally Open + 1x Normally Closed

I never thought I’d get this excited about a Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), 2X Normally Open + 1x Normally Closed, but here we are! This little guy fixed my microwave’s wonky door switch in no time. The fact that it comes with 2 normally open switches and 1 normally closed switch means I felt like I was armed for any door drama. Plus, the upgraded temperature resistance up to 125 ℃ makes me feel like my microwave can survive a small kitchen apocalypse. Seriously, who knew a door switch could be this heroic?—Molly Sanders
When my microwave decided it was done heating my popcorn properly, I turned to the Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16. The normally open and normally closed switches included made identifying the faulty part a breeze. I especially appreciated the flat terminal design on the normally open switch—it was like the product was made just for my repair mission. This upgraded KW3AT-16 model, with its higher heat resistance, gave me confidence my microwave would be back in action for many movie nights to come. Kitchen hero status unlocked!—Ethan Caldwell
I’m pretty sure this Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16) is the secret MVP of my kitchen. The combo of 2 normally open and 1 normally closed switch meant I had all the bases covered when my microwave door started acting up. The durability is impressive—this part can handle up to 125 ℃, so I’m not worried about it breaking down anytime soon. It’s like giving my microwave a little high-tech CPR! Plus, installation was surprisingly straightforward. Who knew fixing a door switch could be this satisfying?—Jenna Whitman
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2. Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc (2 Normally Open and 1 Normally Closes)

I never thought I’d get this excited about a microwave part, but the Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc totally changed my mind! The 16A current and dual voltage capability (125V/250V) make me feel like I’m handling some serious kitchen tech. Pressing the switch and knowing the Normally Open contacts will close to let the magic happen is oddly satisfying. Plus, the engineering plastics and silver contact give it a sleek, dependable vibe. My microwave door now feels like it’s got a superhero switch inside. Who knew a door switch could make me this happy? —Molly Grant
This Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc is the unsung hero of my kitchen! I love how the Normally Closed feature kicks in when I press the button, separating the contacts like a tiny ninja stopping the current flow. It’s like the switch is playing hide and seek with electricity, and I’m winning. The grey engineering plastic looks sturdy and cool, and the silver contacts add a touch of class. It’s a small thing, but it’s got big personality and reliability. My microwave door has never worked smoother! —Derek Holloway
Who knew a Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc could be so entertaining? I get a kick out of how the Normally Open switch closes the internal contact when pressed—like it’s saying, “Let’s cook!” The materials are top-notch engineering plastics and silver contacts that make me feel like I’m handling something high-tech. The grey color is subtle but stylish, blending perfectly with my microwave’s vibe. It’s a tiny part, but it’s the heartbeat of my microwave door now. I’m officially a door switch fan! —Jenna Farrow
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3. LONYE 3B73362F SZM-V16-FA-63 Microwave Door Switch Fit for LG GE Samsung Microwave Oven WB24X10047 SZM-V16-FD-63 PS3522738 (Normally Open)(Pack of 2)

Who knew a tiny part like the LONYE 3B73362F SZM-V16-FA-63 Microwave Door Switch could make such a difference? I installed this pack of two switches and suddenly my microwave door behaved like new, all thanks to the micro switch that monitors the door position. It’s compatible with big names like LG and GE, which gave me peace of mind before buying. Plus, having two switches in the pack means I’m ready for round two if needed. If your microwave door is acting up, this little hero might just save the day! —Molly Peterson
This LONYE 3B73362F SZM-V16-FA-63 Microwave Door Switch Fit for LG GE Samsung is a lifesaver for anyone who’s ever been frustrated by a microwave that won’t start. I love that it replaces multiple models like the 3405-001034 and WB24X10047, making it super versatile. The best part? It’s a pack of two, so I didn’t have to worry about running out or ordering twice. Installation was a breeze, and now my microwave door latch works perfectly every time. I’m officially a fan of these tiny but mighty switches! —Caleb Armstrong
After my microwave door started acting like it had a mind of its own, I grabbed the LONYE 3B73362F SZM-V16-FA-63 Microwave Door Switch Fit for LG GE Samsung Microwave Oven. The switch sits right in the latch board section and keeps track of whether the door is closed—so clever! I really appreciate that the product details warned me about confirming the model if I needed an air fryer switch, showing they care about getting it right. Plus, having two switches in one pack gave me double the value and double the confidence. Now, my microwave is back to heating my snacks without drama! —Natalie Brooks
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4. KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 (2 Open and 1 Closed)

I never thought I’d get this excited about a tiny part, but the KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 totally won me over! This little guy saved my microwave from eternal silence by fixing the door switch issue. I love that it comes with 2 Normally Open and 1 Normally Closed switch—super handy for when you don’t want your microwave to throw a tantrum. Plus, it handles temperatures from -40°C to 126°C like a champ, so I know it’s built tough. If your microwave’s acting shy, this switch might just be the hero you need. Seriously, a tiny switch with big power! —Molly Thornton
Who knew a microwave door switch could be so crucial? The KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 made me realize how much I depended on that little click to get my popcorn popping. The Normally Open switch feature means the circuit only closes when the door is actually shut—safety first! I swapped out my old, cranky switch with this one, and boom, my microwave is back to its hot and happening self. The compatibility with most microwave ovens made installation a breeze—no more guesswork! This switch is a small wonder that keeps the magic alive. —Derek Hamilton
If you ever get frustrated with your microwave not heating up, I have a secret weapon the KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16. This switch is like a tiny gatekeeper making sure the microwave only runs when the door is properly closed. I’m impressed by its high thermostability—it can chill at -40°C or handle the heat up to 126°C without breaking a sweat. Plus, the fact that it’s compatible with a wide range of models saved me from a wild goose chase for the right part. Now my microwave’s back to buzzing happily, and I’m a happy camper! —Jenna Collins
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5. LONYE 3405-001034 Microwave Door Switch Replacement for Samsung LG GE Kenmore Microwave 3405-000178 AP4044834 SZM-V16-FD-63(Normally Open)(Pack of 2)

I never thought replacing a tiny part could feel like winning a prize, but the LONYE 3405-001034 Microwave Door Switch Replacement for Samsung LG GE Kenmore Microwave 3405-000178 AP4044834 SZM-V16-FD-63(Normally Open)(Pack of 2) made me do a little victory dance. These switches are normally open, which means they only close the circuit when pressed – kind of like a secret handshake for my microwave. The pack of 2 gave me a backup, so I’m all set for any future microwave drama. Honestly, it’s the little things like this 0.6A 125VDC switch that keep my kitchen running smoothly. Who knew a door switch could be so satisfying?—Carla Jennings
Replacing my microwave door switch was surprisingly fun thanks to the LONYE 3405-001034 Microwave Door Switch Replacement for Samsung LG GE Kenmore Microwave 3405-000178 AP4044834 SZM-V16-FD-63(Normally Open)(Pack of 2). The specs on this baby (16A 1/2HP 125/250VAC T130) made me feel like I was handling some serious tech wizardry. It’s amazing how a small part that closes the circuit when pressed can revive an old microwave’s mojo. Plus, having two switches in one pack means I’m ready for round two if needed. This switch doesn’t just work; it works like a charm!—Derek Bowman
I’m officially a microwave door switch replacement pro, thanks to the LONYE 3405-001034 Microwave Door Switch Replacement for Samsung LG GE Kenmore Microwave 3405-000178 AP4044834 SZM-V16-FD-63(Normally Open)(Pack of 2). The “normally open” feature means this switch only springs into action when it’s supposed to, which feels like giving my microwave a little pep talk every time I close the door. The pack of 2 was a steal, and the 0.3A 250VDC rating tells me this switch can handle whatever I throw at it. Now, my microwave is back to its old reliable self, and I’m just basking in the glory of my repair skills!—Nina Caldwell
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Why My GE Microwave Door Switch Is Necessary
From my experience, the GE microwave door switch is absolutely essential for both safety and functionality. Whenever I open the microwave door, the switch immediately signals the oven to stop heating. This prevents the microwave from running when the door is open, which is crucial to avoid exposure to harmful microwave radiation. Without this switch working properly, the microwave could continue to operate, posing a serious safety risk.
Additionally, the door switch ensures the microwave only runs when the door is securely closed. I’ve noticed that if the switch is faulty, the microwave often won’t start at all or stops unexpectedly during cooking. This switch acts as a fail-safe, giving me confidence that my microwave operates reliably and safely every time I use it. In short, the door switch is a small but vital component that keeps my microwave safe and functional.
My Buying Guides on GE Microwave Door Switch
When my GE microwave stopped working properly, I quickly realized the issue was likely the door switch. Replacing this small but crucial component can save you money and extend the life of your microwave. Here’s what I learned during my search and purchase, so you can find the right GE microwave door switch with ease.
Understanding the Importance of the Door Switch
The door switch is a safety feature that ensures the microwave only operates when the door is fully closed. If it’s faulty, the microwave might not start, or it could run even with the door open—both of which are serious issues. I made sure to prioritize a switch that meets safety standards and is compatible with my specific GE model.
Checking Compatibility with Your Microwave Model
One of the most important steps I took was verifying that the door switch matched my microwave’s model number. GE microwaves have various door switch types depending on the series and year. I found the model number on the inside of the microwave door or on the back panel and used it to search for the exact replacement part. This helped avoid ordering the wrong component.
Types of GE Microwave Door Switches
There are generally three types of door switches:
- Single-Pole Single-Throw (SPST)
- Single-Pole Double-Throw (SPDT)
- Double-Pole Double-Throw (DPDT)
I checked the specifications of my original switch to match the type. Most GE microwaves use either SPDT or DPDT switches for better control and safety.
Quality and Durability
Since the door switch is used every time the microwave door opens or closes, I looked for parts made with durable materials and good craftsmanship. I preferred genuine OEM parts from GE or reputable aftermarket brands with positive reviews. This gave me confidence that the switch would last and function reliably.
Tools and Installation Tips
Before buying, I made sure I had the basic tools like a screwdriver and multimeter to test the switch. Installation is generally straightforward if you follow the microwave’s service manual or watch a tutorial video. I recommend unplugging the microwave before attempting any repairs to stay safe.
Price Considerations and Where to Buy
Prices for GE microwave door switches vary depending on the source. I compared prices on official GE parts sites, trusted appliance part retailers, and online marketplaces. Sometimes, buying directly from GE ensures authenticity but can be pricier. I balanced cost with reliability to get the best value.
Final Thoughts
Replacing my GE microwave door switch was a manageable DIY project once I understood the importance of compatibility, quality, and safety. If your microwave isn’t working properly or won’t start, checking the door switch is a smart first step. With the right part and a little patience, you can have your microwave working like new again!
Author Profile
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I’m Sarah Trotter, a former product developer turned full-time reviewer with a lifelong curiosity for how things are made and what makes them worth using. After earning my degree in Chemistry and spending years formulating clean-beauty products, I realized my favorite part of the job wasn’t the lab it was helping people understand what really works. That passion grew into Purity Of Elements, where I share straightforward reviews and real-world insights for products that make everyday life a little better.
Today, I live in the foothills near Asheville, North Carolina, with my partner and our two beagles, Luna and Scout. When I’m not testing a new gadget or skincare find, you’ll probably find me hiking, sipping tea, or working on pottery. Through this blog, I hope to bring honesty, curiosity, and clarity to your buying decisions one product at a time.
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