Question about Panasonic NN-T774SF Microwave Oven

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Door will not latch

Suddenly the door will not latch and the screen says "close door" even when the door is held closed. I see a review on the inet from a customer saying she had the same problem within a month of her purchase.

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  • jfoj Feb 24, 2008

    Same problem with door not closing.



    Took the door apart and found the plastic spring retainer molded in the door broke off.



    Easy fix to use either a small lightweight key ring to hook around
    metal door tabs to remount spring or stretch spring and hook under
    metal door tab.



    To dis-assmble door I used a cake icing spatula (or you could use a
    thin butter knife) and slide it between the edge of the door and the
    plastic inside door bezel. Once you get the bezel loose, you will find
    the spring rolling around inside the door and you will find the broken
    door spring retainer parts.



    Easy fix, good luck!!

  • Rashkhan Nov 30, 2008

    NN-T774SF, Suddenly the door will not latch and the screen says "close door" even when the door is held closed.

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The door switch mechanism is broken. Microwave doors have a special arraingement of double switches to ensure it is not open during cooking. Because everything is made from plastic nowadays, stuff like this breaks easily. The switches are commona nd cheap but the mounting parts may not be.

Posted on Dec 31, 2007

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Posted on Jan 02, 2017

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After closing door light stays on and message says close the door and does not turn on after slamming door few times it works some times. model nn sn 7975


There will be a simple switch fitted somewhere on the door latch mechanism. This has broken so the door is not registering as open or closed.

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How can I close the oven door to my Whirlpool GMC305PRB01 Oven and Microwave combo?


We're very sorry to learn of your concerns regarding your Whirlpool® Microwave. We would like to inquire further about your review with you. Please respond back to this email address Whirlpool_Reviews@Whirlpool.com with your Reviewer ID, the name of the site you were contacted on (fixya.com), name, phone number, street address, zip code, model & serial number, and date of purchase on the appliance. Please include a brief description of your concerns in your email. Thank you.

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My whirlpool microwave MH1170XSS-2 closes and latches just fine, but all of a sudden it stopped sensing the door is closed. the light stays on and it won't run, running a "close door" message.


By the sound of your description of the problem, it sounds like the door is closing and latching closed OK. This rules out a door latch return spring issue. I think it is a door sensing switch problem, either the switch contacts are not going to zero ohms (they can get a slight grease film build up on them [even in the box- brand new] and show 5 ohms or more) or the switch body is not in proper position, sometimes the switch mounting posts can break if the door gets closed too hard (slammed). It could also be a wiring problem to the control board or a board problem itself but this is the least likely cause. It is also possible that a latch head can get broken off or cracked and is just not noticed..You need an ohm meter to diagnose the switch's electrical condition. Please be sure to unplug the unit from the wall before doing any disassembly.

Oct 28, 2013 | Microwave Ovens

1 Answer

Frigidaire microwave won't start when door is closed. It looks like the door does not latch properly. It worked 20 minutes ago and last night. How do you troubleshoot and/or fix the switches.


Hello Scott Noble - If I was in your position, I personally will recommend consulting a certified technician first for an accurate diagnosis. Depending on what part(s) is damaged from the door, the microwave could possibly have faulty switches, door switches, or latch which only a professional can repair.

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Microwave only runs with door open (!?)


"There is some charring around one of the interlock switch terminals"

You have a bad connection. The connector and the switch it goes to should be replaced.

Our help file on door switches is here.

You can download GE owner's manuals and installation instructions here.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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SAMSUNG MICROWAVE, MODEL SMH9187ST, WHEN NOT IN USE, WE HEARD A SMALL NOISE (CLICK) AND THE DOOR OPENED. THE DOOR WIL NOT LATCH AND STAY CLOSED. I CHECKED THE TWO FUSES, THEY ARE GOOD. WITH THE...


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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1 Answer

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The door latch is either cracked or broken.The door when gets closed the door latches clicks.But if the door latch is loose or cracked it will not click and door will not close.The door needs to be disassembled and the door latch has to be replaced, if the latch is cracked.Also to check the latch from inside the door needs to be removed.-------- This will help.thanks.Helpmech.

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1 Answer

Kitchenaid superba combo. Microwave gives


HI, this is an indication of a failed door switch. When the switch fails, the control cannot recognize the closed door signal. Simply replacing the door latch mechanism will solve this issue.

Replace the door latch assembly, asap.

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1 Answer

Won't whut off when open door


The microwave running with the door open can be dangerous.

It's most likely the switch in the door stuck in the closed position. Or it has failed/broken in the closed position.

Sometimes the switch is just a button sticking out of the cabinet where the door pushes on it when closed -- sometimes the door latch pushes on a switch inside the latch receiver in the cabinet.

If cleaning around that switch doesn't solve the problem, you should take it to a repair shop.

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4 Answers

Door latches to microwave broken


I assume you're talking about the spring that keeps tension on the door hooks (latch heads, as they're called by Sharp). When you shut the door, the "hooks" are held down by this spring to actuate the door switches. To fix this, you'll have to separate the door panels. You can download the service manual from my Web site. There's a loop built into the latch head assembly and sometimes the loop breaks. If so, you can drill a tiny hold in it and reattach the spring there. There may also be a loop on the innner door panel to hold the spring. That one can break, too. If it's broken, you'll have to find a way to secure the spring to the panel. If the panel material is thick enough, a tiny screw eye could be inserted, then epoxied overnight to secure it. I've attached a diagram to this message that should help you. If that doesn't help you, I have the service manual for the R1600-series microwaves on my Web site at: http://www.microwavedisplay.com/R1610.pdf Repost if you need more help.

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