Fix: Microwave starts when door open, Fix door switch 

Took me 30 minutes to fix my microwave after watching this video, my switch was stuck not broken. Thank you so much.

Thanks for saving me $300+!! Recommend unplugging and waiting several days for the capacitor to discharge prior to beginning work.

Thanks for this! I couldn't figure out why our awesome microwave started running every time we opened the door!

Thank you for producing and posting this! After watching your video, I diagnosed the issue, purchased the parts, and fixed my microwave! The part was only $10, and saved me from replacing a $500 unit! Much appreciated!!!!! :)

Worked perfectly! Thank you. I didn't worry about which one was faulty; I replaced all three. Also, a shout-out to Miracle Appliance Parts in Thousand Oaks California, who had the switches in stock as well as helpful advice on how to handle the two normally-open and one normally-closed switches ("just plug in the adapters - it'll work fine!"). My microwave was a 36" GE Profile exhaust hood / microwave, just like his. The fix was really straightforward. Cleaning the 12 years' accumulation of cooking grease out was a little more problematic, though WIndex worked great for that.

Thank you! With your help this was an easy fix for our microwave. I tested my switches with my finger without removing any of them to find the culprit that needed replacement.

Thank you so much for taking the time to post this...it helped save me $200! I was ready to go out and buy a whole new microwave. THANK YOU!!

Thank you for the video, I nearly bought a new one until I searched for the problem and saw this!

Thank you! Your directions were great! It was the top switch. $8 fix. Great content!!!!!

This was great, thank you! Also, this is the solution for when the microwave just ceases to come on and heat even though the timer is on.

Thanks for your video, I think I just extend the life of our microwave by however long the switch is going to last. Bought a pair from Amazon for $10(Lonye). Put it on less than a hour as I was trying to do it really cautiously.

Thank you for sharing this video. My issue was the oven not heating. All other functions were fine, but when hitting “start”, timer would count down, but it would not heat. My MW is a Kenmore and I was able to order the entire latch assembly that came with all three switches for less money than buying three switches separately (about $13). Appliance repair service calls are not cheap, so this helped save us a some $$. Thanks again!

Thanks for the video. I just had this problem and I was able to locate the faulty switch and repair it by opening the switch and gently cleaning the switch contacts with sand paper. I bent the spring ban into shape and the switch was back to working again.

Thank you, great video. You explained it and showed it very good. I had the same problem. One of my switches was broken. I fixed it thanks to your video. I appreciate it.

Thanks for your video. I have the same issue with my GE microwave. I will be busy this weekend trying to fix it.

GE wanted $90 just to come to the house, plus hourly rate and cost for the part. Your video cost me $6.75 for the part... Thanks.

Before 1:19 you may need to remove screws. I got excited when I saw I have this same microwave but then frustrated when I could not pop the top front cover off as easily. A couple rather obscure screws removed from top front and off it comes. Appreciate the video - very helpful.

Very helpful. I intend to order a switch and try this out. Thanks a lot!

Thank you very much it worked!! You saved me lots of money thanks again!🙏

Thank you for this video. It worked just as you showed it. I was a bit scared at first by the capacitor comments but was careful to work only in the front of the microwave and didn’t touch anything metal inside. If someone knows how to discharge it then I’m sure that’s best but it worked.

Nice work gent!

Thank you , that worked and it was the top switch that was faulty... again thanks for your video

Great video. As mentioned previously you should definitely discharge the capacitor prior to touching anything! Also when running the microwave even for just 30 seconds make sure you put a cup of water in it. Running it completely empty is never a good idea.

My GE over stove is doing the exact same thing. Just a few months out of warranty. Go figure. The second microwave. My first lasted forever till the door switch failed and a relay on board kept losing contact. My attempt at soldering it back to board failed in disaster letting solder wick into relay. I think with one of the door interlock switches sticking making the fan come on when you open door, the microwave must have a check and does that so the consumer will get it checked out since if others stick, it will work with the door open. Still pretty sorry and GE's undoing . Putting 2Cent parts in their appliances.

Thanks for the video. I was able to fix my microwave in under a half hour using the information provided here. In case it helps others, I almost ordered the wrong part - what worked was reading off the part number itself on my particular malfunctioning piece and search/order that. In my case that was SZM-V16-FD-63 but there seems to be a lot of variability for these parts (and according to user reviews on Amazon, a lot of people who order the wrong part) so read off your own part number before ordering. - Thanks again!

Great video, thanks for the help!

Thank you! I was able to fix it myself. Took 2 switches because the lady where I bought the first switch said I didn't need to break off the extra metal prong and it blew as soon as I plugged it in because it touched metal. Got it the 2nd time though!!

Thank you so much for sharing this information

Thank you!!! Just fixed mine, one of those three black switches were weak and didn't 'click' as well. I opened the black switch's housing and bent the tiny metal piece that acted as the spring, takes some dexterity to tinker with those tiny insides but bending it back into shape fixed it! Didn't even need to buy a new replacement.

Thank you for the instructions. They were right on 🎯 target 😊

NEVER START THE MICROWAVE WITHOUT AT LEAST A CUP OF WATER IN IT.

I knew the problem with the microwave was a faulty switch. I am trying to find out WHY the faulty switch makes the fan come on when the door is opened. I've not found the schematic for my GE microwave to figure out the logic on this.

This video was so helpful. Ordered a set of switches on Amazon and replaced all three while I had the microwave apart. Thank you for your video!

Faulty bottom switch in my case. Thank you for your time-saving video! Note: the faulty switch rings out OK w/ an ohm meter, but its return spring seems weak, and there is no positive click, as with the new replacement. I suspect it would just stay in the pressed-in / circuit closed position even with the door open, signalling the control panel that the door was closed.

My switches test good. I removed the circuit board and cleaned it with alcohol. All works fine now.

Thank you for the video. Great step by step instructions!

I had an awful time disconnecting the wires from the switch. If this happens to you, put the swith back in and use a screwdriver in the small slot between the green wire housing to pry it off. Trying to pull the wires from the switch (for me) was the hardest part of this fix. Preferably use the screwdriver in the slot BEFORE you remove the switch.

Hi and thank you for your video , you explain what your doing and so much easier for me to follow along , I have 1 question my micro is almost the same as yours and my switches seem to click ok but I checked with my continuity meter and the middle one stays open whether I click it or not so is that a bad switch ? Thank you for your time Ron

Thank you very much for sharing your video. In our case, we didn't have to buy new switches, but opening it up and checking out each switch seemed to do the trick (for now).

Hello! Could you help me please? My GE microwave is doing the same, but all switches are clicking. Do you know what else it could be? Thank you!

Had the same problem. Door open and microwave kept running. Ordered replacement part. Watched video. Took 15 minutes from start to finish. Spent more time cleaning the top of microwave than fixing it. One note, make sure you have the correct bit to take off door panel piece before you start. Thanks for posting this fix.

There is another quick fix. If you can't replace the switch(es) immediately, you can manually click them a few times or close open the microwave door rapidly. This seems to fix the mechanical fault without having to replace the switch.

Did you discharge capacitor as Eddie Perez recommended. He said it was necessary and easy to do, but never told HOW to do it. How do you discharge the capacitor? Where is it located?

I have a GE Profile Spacemaker® 1.8 Cu. Ft. XL1800 Microwave Oven PVM1870SMSS. Mine is also doing the same thing. My wife is scared because she thinks we are getting zapped with radiation every time we open the door. I told her I am pretty certain it is just the fan. Because I put water in it, with door open and it "running" and the water just stays cold. So it is just the stupid fan running when we open it, correct?

Thank you. Good Job. Not a good idea to run the microwave with nothing in it though. You will be replacing the Magnatron in your next video 😂

Thanks so much for your help! Probably saved a $150.00 house call for $14.00!

How to find the correct door switch at Amazon? Is it by amperage, voltage or a combination of those plus other specs not listed in my question? Thank you.

can you tell me the part link on amazon that I should buy?

Great job

Awesome directions and step by step with the whole process! Thank you!

I found a GE microwave by the side of the road that had a similar situation. So, I took it apart until I got to the switches. However, instead of the switch needing to be replaced, it randomly popped out as I was trying to remove it. So, I just used some contact cleaner to clean the top of the button so that it wouldn't stick anymore, and we got a free microwave in the process.

There's nothing easy about this, it looks complicated as hell. I'll have to buy a new one..smh

Not two secondary switches. It shouid be one primary (normal open), one secondary (normal open), one monitor (normal close).

Your video was much easier to follow than most. Thank You

My microwave model is pvm1790sr1ss which switches do I need numbers?

That was plain and instructive. Thank you.

Are microwaves actually coming out when the light is on and the dish is spinning, control panel not set to on?

Thanks for the video!!! this looks like an easy DIY job...

Could you please provide a link to these items that you bought on Amazon?

Thank you for the video, the information is good however this video could be much better in terms of how to disassemble the components. There are screws on top of the Grill Assembly cover they are not mentioned. The grill assembly needs to be shifted to the left to be removed, worth mentioning. There are tabs holding the door switches that need to be depressed to remove the switch.

Thanks I got my microwave fixed in 30 minutes like you said.

Thanks so much. This was such an awesome DIY video. It was simple to follow and my microwave is now working like a charm. Thanks so much for taking the time to create this video.

Thank you so much. That is exactly what our microwave is doing. We will work on it tomorrow.

Your microwave is exactly as mine, would you mind sharing with me the door switch number? Thanks!!

Super helpful video, thank you!!

My Samsung combi microwave suddenly beeps 2x and goes on to convection oven mode with the door still open. It doesn’t turn on cooking, but I don’t dare to leave it plugged on now. What could it be the problem? It’s an old one, but it never let me down before. Thank you.

So, my microwave just started doing the same thing. Previously, it seemed to be working, but sometimes wouldn't cook, unless I stopped it, and started it again. Now, the dang thing turns on when I open the door! Quick question: Am I getting irradiated, when I open the door?? 😂

Wonder if just alcohol soak n cleaning would work, probably sticky butter popcorn residues in switch. Life experience husband fix it list check box.

Dying bottom switch in our case. As an experiment, discovered if the bottom "normally open" switch is the broken one and you swap it with the top, you can use the microwave normally for a few months more until it also breaks.

Does anyone know where the switches are for the sharp carousel smc1442cs model? Thanks.

Thank you. I just ordered a replacement switch from Amazon.

Hi I have a Samsung.... My microwave hums when the door is closed and gets very hot without putting it on... Then it goes out until I plug it back on

You should really discharge the capacitor before working on this microwave it can store about 3000 volts.

I ordered the complete latch board and 3 micro switch assy from Amazon. Replacing a single switch is not the way to go (IMO).

I have the exact same microwave and the exact same problem

My microwave starts when the door is open and does not run at all with the door closed. Would that be a faulty switch also?

you can still die even if the power is unplugged. it has a massive capacitor.

Easy and simple video to the point. Please let us know the part numbers used.

did u discharge the capacitor before u did this procedure? do we not need to do that before replacing the door switch?

Great knowledge thanks!

Thank you, ironically I own the same microwave as yours, this DIY video will save a lot of money for many people. Very informative.

Thanks a lot! Just fixed my GE microwave and saved $300

Mine started doing the same problem, are there microwaves emitted when opening the door and it starts on its own?

Nice, thanks my friend. Found it and will fix it.

Thank you for your video and effort 👍❤️☮️

So very helpful! I just fixed my Kenmore 401.8505 Microwave. Such a great video!

What kind of screwdriver did you use to open the white part to release the door switch panel? My philips screwdriver does not work.

My switches all tested ok but replacing them still fixed the problem.

What's the name of the switch so can order. Thank you

I bought these and 10 minutes later I'd fixed the microwave. thanks....

My microwave is the same manufacturer and appears to be the same model. It will turn on for a split second when opening the door but then shuts off right away. Any ideas of the fix for that?

I have the opposite problem.. buzzing sound without light when door is closed, heats stuff too... no sound when the door is open. I could get to the switches and tested for continuity. Top switch disconnects when door open, connects when door closed. Middle switch connects when door open, disconnects when door closed. could not get my hands to the bottom one......... could the problem be switches too? can you specify which switches did you order from amazon? coz mine's GE too, looks almost similar to yours.

I swear I have the same one doing the same thing.

Worked on my Samsung! Thanks

Used this video to make a repair. When the door was open the fan would run. Eventually, microwave stopped working completely. Very easy repair. Part was $30. Microwave works perfectly now. Thanks for the video.

Unfortunately, not only the fan but the actual Microwave turned on when my sister opened the door and her skin got burned.. Hopefully this fixes the issue..

Thanks so much. You saved me a lot of money. I was going to call a repairman.

Thanks.

I just finished replacing both switches and, unfortunately, the problem persists. Your video is excellent and was easy to follow. Any ideas as to what might be another cause of my problem? Thanks.

That's funny. That's my model microwave and my switch went bad. Must be a common problem in that model