Question about Panasonic NN-T551 Microwave Oven

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The door closes but not firmly their is still movement when fully closed

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The door may be easily adjusted by slackening off the screws that clamp the door catch/actuators in place whilst holding the door closed and then tightening the screws. The rear of the door may be adjusted by slackening the lower door hinge screws and adjusting as required.
I hope that helps.

Posted on Dec 30, 2010


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Microwave door will not close

PROBLEM, ROOT CAUSE: the METAL FLANGE holding the fixed latch and (3) interlock safety switches is about a thick as the metal in the screw cap on a glass bottle ... say 16 gauge or less.

The METAL FLANGE is thin, wing that has not support to prevent it from swinging like a door hinge. We use (2) of the microwaves everyday. One has never given the "DOOR CLOSE" will not operate problem. The 2nd microwave worked for two or three years. Then it was difficult to close ... and the panel gave the failure message ... "CLOSE THE DOOR."

I was able to use my thumb to press and remove 'dimples' into the metal. It was giving just a little more support than a 'say 10 vertical sheets of wet white copy paper.' We I bent it back to the proper alignment, the door closed and the switches worked. But after just a few cycles of OPEN & CLOSE, the switches would not let the microwave operate ... and the door began harder to close.

SOLUTION: To prevent or limit the movement of the METAL FLANGE, I used (2) connected loops of cable ties like a vertical suspender. The suspender prevents the METAL FLANGE from moving away from the center of the microwave.

1. Un-plug the power cord.

2. There are two methods to remove the case:

(a.) Turn the microwave on one side, the place a ruler beside one of the TORX (with center security pin) screws. Take a digital photo. Go to an auto parts sales office that sells a license plate kit with a kit (a TORX wrench with a drilled HOLE and many of the same TORX (with center security pin) screws.

(b.) Drill out the center security pin at each of the TORX (with center security pin) screws.

3. I used (2) each 12 inch long plastic cable ties. The width was less than 3/16" wide (so it would thread into two [~0.15 inch diameter] existing ventilation holes in the microwave).

4. I threaded one of the plastic cable ties thru a hole at the top, near the front, about one inch toward the center of the microwave.

5. I threaded the 2nd plastic cable tie thru a hole in the bottom, near the front, about 2" towards the center from the latch plate.

6. I formed a large loop with the bottom cable tie, very loose, do not tightened at this stage. I threaded the open end of the top cable tie thru the bottom cable tie loop.

7. THEN I carefully

(a) opened & closed the DOOR, WHILE

(b) watched the position of the METAL FLANGE

(c) AS I slowly tightened each of the large loops of cable ties.

(d) I repeated steps (a) to (c)

(e) I stopped tightening when the CABLE TIES LOOPS provided SOME support, AND the METAL FLANGE still have some hinge movement.

My Panasonic NN-SN797S door would not close. My solution has worked since about March 1st, 2013. Below is a photo from the factory manual. ebd9fdc7-5cb0-4461-ace5-77040f1420eb.jpg 1daa051e-ab7c-4ba9-a7ea-73605433272e.png

Mar 30, 2014 | Panasonic Microwave Ovens

1 Answer

When I turn the micro on it does not turn nor heat unless I lift up on the door. Seems like door needs to be adjusted slightly

The problem you're seeing is nearly always a result of a safety switch that is not being activated by the door. The result is that the oven thinks the door is not shut fully. Pressing the door closed at the latch or downward from the top opposite of the hinges will usually provide enough movement to activate the switch. One of these methods is what I suspect you are doing to get it to work.

Inspect the prongs on the door. Make sure both are not damaged or broken in anyway. The size and shape are critical for effectively engaging the safety switch. Repair or replace parts as needed.

The switch itself is usually connected to the latch striker assembly or to a switch deeper inside the oven - to the latch itself - to detect its position. The striker assembly is partially visible behind the two openings of the door frame - the two prongs on the door push them down and when fully closed, keeps them down. Since accessing these parts requires disassembly of the oven by qualified persons to maintain safe operation - the oven should be service professionally to ensure that the door is closed completely before allowing the microwave to function.

Sep 03, 2013 | Dacor DCM24 Convection/Microwave Oven

2 Answers

Magic chef microwave runs backwards with door closed and no time set - works normally when time is set and door is closed - any ideas?

Probably a bad door switch or door switch mount. See help file here.

It's normal for a microwave turntable to run either direction at random. That's common in such AC motors.

Dec 26, 2012 | Magic Chef Microwave Ovens

1 Answer

Fridge door does not stay closed

"fridge door does not stay closed" (sic) This can happen if the door magnet has lost it's grip, this can be easily replaced, either DIY, or there are many firms that offer this service. Or the latch mechanism isn't working as it should.
if you wish to DIY then first obtain a service manual, for your exact make and model. This shows you what to do & how to do it, also more importantly it has parts numbers too.

Nov 15, 2010 | Microwave Ovens

1 Answer

The door won't close all the way so it won't run at all. I think the top hinge is the problem. What can I do to fix?

First remember this is a microwave which is very dangerous if the energy escapes the chamber so you want to be very sure that you have a good seal around the door before operating the unit. Now with that said I would check the vertical movement of the door to see if it moves up and down more than 1/4 inch you should not use it. When you say that the door will not close I am not sure what you mean. Obviously if the door doesn't close the unit will not run because there are safety switches to prevent this for your protection. I would look at the original problem which is the door will not close. Find out why and get back to me. I can probably resolve this for you.


Feb 06, 2010 | Sharp R-1610 Microwave Oven

1 Answer

Oven keeps shutting off, says close door or says push start. When you push start again or restart only runs for few seconds and then shuts off again

1)Make sure there is a clearance all round the machine so that there is a good airflow. The sensor is picking up a lack of circulation or heat factor.

2) Chdeck the door switch, it may well not be closing correctly. when the door is closed and prior to hitting start,\; pull the door gently to see how much movement or play is in it. The door should be tight and have almost zero movement. Look at t both sides of the door lock to ensure no debris is preventing it from closing correctly, and the latch itselof is not broken!

Thanks for using FIXYA

Oct 13, 2009 | Microwave Ovens

1 Answer

Light comes on. timer works. no microwave energy nor turntable movement.

one of the two door switches is bad.they can be chkd by opening the control panel and the door sws are mounted on the latch assly. u could do a simple contunity test on those.they are normaly open when door is open and closed when door is closed.sw is abt $ 5.00 and very easy to chge.

Aug 18, 2009 | Microwave Ovens

1 Answer

Door won't close!

Is it the catch or won't the door close fully?

Oct 06, 2007 | Emerson MW8102SS 1100 Watts Microwave Oven

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