Question about Samsung SMH9187ST Microwave Oven

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I have a Samsung SMH9187ST microwave, it is about 2 years old. The door won't stay closed. It is worthwhile to try to fix it or should I just replace it?

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If you can lift the plastic door latch catches with no resistance, it is most likely the spring/plastic connector. I removed the door by lifting up, pulling the bottom forward, and lowering. I removed the inside black plastic bevel with a jewelers flat screw driver, prying from the latch side's external edge. Once it was started, I could pull it of with a gentle lift. I took out the black plastic latch, drilled a hole near the broken piece and all was good. Samsung is not on my radar for any future purchases. This is the 3rd major purchase that barely made it past warranty or not even thru warranty.

Posted on Nov 27, 2011

  • 8 more comments 
  • Brandon Bradley Mar 09, 2012

    This solved my problem. I had looked at trying to remove the door and check this out previously, but was hesitant as I didn't want to break anything, Thanks for the tip!

  • chosinresovoir Apr 29, 2012

    this solution just saved me 300 dollars to replace my microwave. can't say thanks enough. the little plastic hook that originally help spring is such a faulty concept. thanks again.

  • nth_g
    nth_g Jun 04, 2012

    These instructions could not be more clear, It took me 2 minutes to (forever?) solve this exact problem.
    If your microwave is mounted with a fan compartment above, you need to remove it before removing the door. This you do by unscrewing the two screws on top, then pushing the vent left then out.

  • narshank
    narshank Jul 21, 2012

    This solution worked perfectly for me. I was able to lift and pull the door off easily of the hinges; but I would suggest caution and be level while holding the door. In my case the spring was fine, but the hook it had to latch on to (on the double hook plastic latch body) had broken. Just drilled a hole next to where the hook broke off with my Dremmel and hooked up the spring and all is well again. Thanks a ton for this solution

  • jerryolla
    jerryolla Aug 29, 2012

    Epic win, problem fixed in less amount of time then it took me to google this solution!

  • brianharris0
    brianharris0 Dec 10, 2012

    Prying up the plastic bevel is tricky and we snapped off one of its tabs while trying to do so, but the rest worked as described. The broken tab doesn't appear to be an issue after reasembly since the bevel has a dozen other tabs holding it on.

  • James Simoneau Jun 15, 2013

    This solution works, it was very helpful, however Lukas Patterson's solution below makes the process even easier, removal of door is not necessary, one less piece to break! Thanks to both of you, we have saved alot of money and time.

  • Mary Baum
    Mary Baum Dec 09, 2013

    Yay! Wish I hadn't taken so long to try this very easy fix. I'm visual so even with the great description I wasn't sure so...

  • Mary Baum
    Mary Baum Dec 09, 2013

    The bottom picture isn't clear. I drilled a tiny hole near where the piece broke off not towards the top as it appears.

  • Bruce Wellman
    Bruce Wellman Feb 22, 2014

    Thank you so much for taking the time to share! We had just replaced the motherboard for $120 (which seemed like a good plan as compared to a $300 replacement microwave) but when the door stopped working I was so upset. I'm thankful for the Internet and people like you who are willing to help others by doing such postings!


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Hey this totally worked for me and I did NOT have to take the door off nor remove the fan parts. Just open the door and remove the inside plastic rim where the latches stick out. Once you gently remove the plastic casing from the inside of the microwave door, remove the latch, drill a TINY hole inside the circle where the little piece broke off, attach the spring, put the latch back in, put the casing back on and close the door! Hell yea

Posted on Dec 23, 2012

  • cahoonb
    cahoonb Jan 13, 2013

    Thank you! Works like a charm. Thought I was going to have to make a service call. Even my wife is proud of me.

  • James Simoneau Jun 15, 2013

    Genius!!!!! So impressed with the helpful information that just saved me a lot of headache, money and inconvienence. Between the two above instructions I too was able to fix the problem in less time than it took to comment on this thread! This is what happens when we outsource manufaturing, an expensive unit with plastic pieces used in places with heavy use. Thank you so much for posting your solutiuons, very helpful!!


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I think that as realigning the door, unless a door catch has been broken off, would get the unit going again.
Remove the power supply.
Remove the cover and watch the mechanism as the door is closed. There are two or three screws that hold the mechanism inline, slacken them off and close the door. Holding the door closed, tighten the screws.
Put the cover back on.
That's it.

Posted on Dec 31, 2010

  • 1 more comment 
  • trpsing Feb 20, 2011

    I had the same problem. At issue was the door latch mechanism inside the door unit. The two prong latch has a spring that had broken off the cheap plastic two prong part. I simply drilled a new hole next to the area wher the spring originally attached, reattached the spring and put the door back together. Worked like a charm. Still bothers me about the lousy engineering though.

  • wwwetzel May 25, 2011

    Same problem. How did you you get the door apart to get access to the spring?

  • drgoldinger
    drgoldinger Jul 30, 2012

    I just wanted to say thank you for posting this! I was staring at the **** lock trying to figure out where the spring went. When I read this I immediately knew that mine was broken. I followed your instructions and they were perfect for a fix. Thank you so much for the information!!!!


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Yes, thak you all! This microwave is a total POS and we have had to fix the computer as well as the cheap plastic handle which broke off of the base. These directions helped me to remove the inner liig of the door so that I could get to the screws and replace the handle (that the company made me pay $25 for). At this poit we have paid almost $300 to fix what is broken...The lining came off with a large flat head screwdriver, but I found that it was much easier to take it off closer to the door hinges than by starting on the side where the notches insert into the baase unit. I did split it by removing it, but it went back in just fine and seems to be seamless. I'll post in a year or so if any of us are growing tails ;)

Posted on Apr 04, 2013

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Hi dschema,

You have a door switch issue. There are three behind the panel. If you can lift and hold the door and it starts one of them is bad for sure. You would be better off replacing all three or have a repair man replace them because a microwave can hold 3000v even unplugged.

Hope it helps.

Thank you for using FixYa.

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