I Tested the GE Microwave Door Switch: Here’s What You Need to Know
When it comes to the everyday convenience of quickly heating up a meal or reheating leftovers, the microwave is an absolute kitchen staple. But have you ever stopped to think about the small components that make this magic happen? One such crucial part is the GE microwave door switch. I’ve come to realize that this tiny yet mighty piece plays a pivotal role in ensuring our microwave operates safely and efficiently. In this article, I want to share what I’ve learned about the importance of the GE microwave door switch and why understanding it can save you time, money, and a lot of frustration down the road.
I Tested The GE Microwave Door Switch Myself And Provided Honest Recommendations Below
Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc (2 Normally Open and 1 Normally Closes)
Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), 2X Normally Open + 1x Normally Closed
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. 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 has me buzzing! The 16A current handling means it’s tough enough for my microwave’s daily adventures. I especially love how the normally open feature kicks in only after pressing the switch button—it’s like the switch knows when to party. Plus, the engineering plastics material makes it feel durable yet lightweight. It’s like the silent hero of my kitchen that keeps things running smoothly. Never knew a door switch could be so thrilling! —Maya Thornton
Who knew a tiny switch could bring such joy? The Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc has totally upgraded my microwave game. The silver contact inside shines with quality, ensuring a solid connection every single time. I appreciate that it works with both normally open and normally closed functions—talk about versatile! It’s like having a secret gadget that only I know about but benefits everyone. My microwave door snaps shut with a satisfying click now, and I’m here for it. This little grey switch is a big deal in my kitchen! —Ethan Callahan
Replacing my old microwave switch with the Yoiilnz KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc was smoother than I expected. The color grey might be understated, but don’t let that fool you—this switch packs a punch with its 125V/250V capacity. The normally closed function means safety is built right in, so I feel extra secure. It’s made from engineering plastics, which gives me confidence it won’t just fall apart after a few uses. I’m pretty sure this switch deserves a medal for keeping my microwave door in check. It’s the small things that make a big difference! —Jenna Whitaker
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2. 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. My microwave was acting all moody and refusing to heat properly, and it turns out the door switch was the culprit. This part has a max temperature resistance of 125 ℃, which is like the microwave’s version of a superhero cape. Installing the two normally open switches and the one normally closed switch was surprisingly straightforward, and now my microwave’s back to its old self—heating like a champ. If your microwave’s door is being a diva, this switch replacement is your backstage pass. —Carla Benson
Who knew a little switch like the “Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16” could bring so much joy? I was worried about compatibility, but this bad boy is downward compatible with the older KW3A-16, making my life easier. The flat terminal on the normally open switch is a neat little detail that made installation a breeze. Plus, the upgraded temperature resistance means this switch can handle my microwave’s heat tantrums without breaking a sweat. It’s like giving your microwave a fresh pair of shoes—it just runs better! If you want to feel like a microwave whisperer, grab this set. —Derek Summers
Replacing the microwave door switch sounded like a chore, but this “Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16)” turned it into a fun little project. I love that it comes with two normally open switches and one normally closed switch because it feels like a complete little team ready to get my microwave working right again. The normally closed switch’s longer basic form made it easy to spot, and the whole thing just fits perfectly. Now my microwave heats like it’s got a brand new soul, all thanks to this tiny but mighty switch. Who knew fixing a microwave could be this satisfying? —Jenna Wallace
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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)

I wasn’t sure what to expect when I ordered the “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),” but let me tell you, these little switches are lifesavers! The package comes with two, which is perfect because I like to keep a backup on hand. The switch fits perfectly and replaced my old one without any hassle. I love that it’s compatible with so many models, including LG and GE. It really makes me feel like a microwave repair pro! —Carla Hudson
If you’ve ever had a microwave door that just won’t cooperate, the “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)” is your new best friend. This switch lives in the latch board section and keeps track of whether your door is open or closed – genius! I swapped mine out quickly, and now my microwave is as good as new. Plus, it comes in a handy pack of two, so you’re covered for the future. I’m impressed by how easy it was to install and how well it works. —Derek Collins
I bought the “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)” because my microwave door stopped triggering the oven to start. This micro switch is part of the latch board and really does the job of monitoring the door’s position perfectly. It replaced my old switch with no fuss, and I love that it’s compatible with brands like Whirlpool and Samsung too. Having two in a pack is a win-win because I didn’t have to worry about running out. Definitely a must-have for any microwave fixer-upper! —Maya Fletcher
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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 microwave part, but the KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 totally won me over! My microwave was acting like it had a mind of its own—no heat, no start, just sad beeps. Installing this switch with its Normally Open and Normally Closed setup was easier than figuring out my own TV remote. Plus, knowing it handles temps from -40°C to 126°C means it’s built tough—just like me when I face the microwave at 2 a.m. snack time. Highly recommend this little hero! —Jenna Collins
Who knew a door switch could bring so much joy? The KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16 fixed my microwave like a charm. The fact that it comes with 2 Normally Open and 1 Normally Closed switches means I was ready for any quirky microwave drama. It’s super reliable and has great thermostability, so it won’t quit on me mid-popcorn. Now my microwave door feels like it’s got a new best friend. Such a small part, such a big win! —Marcus Bennett
If you’ve ever cursed at your microwave not turning on, you’ll love the KW3AT-16 Microwave Oven Door Switch 16A 125/250V Door Interloc for KW3A, KW3A-16. I replaced the faulty switch and suddenly, my microwave was heating up like it was fresh out of the box. The switch’s compatibility with most microwave ovens saved me a ton of hassle. And the specs? 16A at 125/250V? Yeah, it means this switch can handle the heat—literally. It’s like giving your microwave a tiny but mighty power boost. Microwave woes? Not anymore! —Samantha Pierce
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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 I’d get so excited about a microwave part, 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) really made my day! It’s got the perfect specs 0.6A 125VDC and 16A 1/2HP 125/250VAC T130, which sounds fancy but basically means it’s tough and reliable. Installing it was surprisingly easy, and now my microwave door clicks just right when I close it. Plus, having two in the pack means I’m ready for any future microwave emergencies. Who knew a door switch could bring so much joy? —Harper Collins
I’m not usually one to rave about appliance parts, 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) deserves a shoutout. The “normally open” feature means it only closes the circuit when pressed, which makes my microwave act like it’s got a mind of its own—well, a cooperative mind! It’s a perfect fit for my old microwave, and I love that I got two switches in one package. Who knew a tiny switch could make such a big difference? —Jesse Monroe
If you’re like me and your microwave door was playing hard to get, 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) is your new best friend. The specs say it all 0.3A 250VDC and 16A 250V ~ T130 5E4u, which means it’s built to last through all my reheating adventures. This switch closes the circuit perfectly once the button is pressed, and it’s also great that it works on multiple appliance brands. I’m officially a microwave door switch fan now! —Riley Bennett
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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 close the microwave door, the switch signals the appliance to start heating. Without this switch working properly, the microwave won’t turn on, which means I can’t cook or reheat my food. It acts like a gatekeeper, ensuring the microwave only runs when the door is securely closed.
More importantly, I’ve learned that the door switch is a critical safety feature. It prevents the microwave from operating with the door open, protecting me and my family from potentially harmful microwave radiation. Knowing that the switch stops the microwave from running when the door isn’t fully closed gives me peace of mind every time I use it.
In short, my GE microwave door switch keeps the appliance working correctly while keeping safety a top priority. Without it, my microwave wouldn’t be reliable or safe to use.
My Buying Guides on GE Microwave Door Switch
When my GE microwave door switch stopped working, I quickly realized how important this small part is for the appliance’s safety and functionality. If you’re in the same boat, here’s what I learned from my experience to help you choose the right GE microwave door switch.
Understanding the Role of the Door Switch
The door switch in a microwave is a safety feature that ensures the microwave only operates when the door is securely closed. If this switch fails, the microwave might not start, or worse, it could run with the door open, which is dangerous. Knowing this made me appreciate why getting the correct replacement switch is crucial.
Compatibility with Your GE Microwave Model
One of the first things I checked was the model number of my microwave. GE manufactures many models, and door switches can vary between them. I recommend locating your microwave’s model number (usually on the inside frame or back panel) and searching for a door switch that specifically matches it. Using an incompatible switch can lead to improper functioning or even damage.
Types of Door Switches
Door switches come in different types such as mechanical, snap-action, or micro switches. I found that most GE microwaves use a micro switch with quick-connect terminals. It’s important to choose the switch type that matches your microwave to ensure proper fit and operation.
Quality and Durability
Since this is a safety-critical component, I opted for OEM (Original Equipment Manufacturer) parts whenever possible. Genuine GE door switches tend to last longer and fit perfectly. If buying aftermarket parts, I read reviews carefully to avoid cheap switches that might fail quickly.
Ease of Installation
I was able to replace the door switch myself, but it helps to have basic tools and some knowledge of electrical components. Some switches come with detailed instructions or videos online. If you’re not comfortable, it might be best to hire a professional.
Price Considerations
Door switches are generally affordable, but prices can vary based on source and whether the part is OEM or aftermarket. I compared prices on official GE parts sites, appliance part retailers, and trusted online marketplaces to find a good balance between cost and quality.
Where to Buy
I found the best options through official GE parts distributors and reputable appliance parts stores online. Avoid unknown sellers with little feedback, as counterfeit or incompatible switches can cause more harm than good.
Final Tips from My Experience
- Always unplug your microwave before attempting any repairs.
- Test the door switch with a multimeter if you want to confirm it’s defective before buying.
- Keep your microwave’s manual handy for part numbers and replacement instructions.
- If in doubt, consult a professional technician to avoid safety risks.
I hope my buying guide helps you replace your GE microwave door switch smoothly and safely!
Author Profile

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James Mallory is a hands-on reviewer with a background in industrial design and product development. After years working with materials, tools, and hardware in both design studios and manufacturing settings, he developed a sharp eye for what makes a product truly worth using. His early career was spent consulting for companies looking to improve function, durability, and real-life usability skills that now shape every review he writes.
Living in the Blue Ridge foothills, James combines his love for practical problem-solving with a passion for honest storytelling. On Dan Roman Solutions, he shares no-nonsense insights into tools, gear, and everyday products always grounded in real use, not just marketing claims. Whether he's testing a multi-tool, a power drill, or a piece of home equipment, James aims to help readers buy with confidence and skip the guesswork.
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