Question about Panasonic NN-H275SF Microwave Oven

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Light under the unit stays on all the time - Panasonic NN-H275SF Microwave Oven

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I see and repair this problem regularly. Details are here.

It's a problem on the control board that occurs when the bulbs short or when they are removed or installed with the power still on.

Posted on Feb 17, 2014

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2 Answers

Is it worth repairing or replacing a control/circuit board in this microwave?


I agree that the cost of the repair outweighs the cost of replacing the whole MW. It appears that the solid state device that takes the keypress from the keypad to control the light circuit is shorted so the light stays on all the time. Most likely from a lightning surge. Use it the way it is. You will hurt nothing without a light in the socket. My info indicates this is a model from the late 1990's so it is about 15 years old. It is not hard to changeout a microwave. You might need some help lifting it into place. Choose one as similar as possible to the old one.

Nov 11, 2014 | Whirlpool MH7135XE Microwave Oven

1 Answer

Light under the NN-SD297S unit stays on all the time


I see and repair this problem regularly. Details are here.

It's a problem on the control board that occurs when the bulbs short or when they are removed or installed with the power still on.

Feb 17, 2014 | Panasonic NN-H275SF Microwave Oven

1 Answer

Fan runs when door is closed and no time set.


Some GE units were starting on their own. I would definitely unplug this oven and call GE to make sure yours wasn't one of the ones being re-called.

Feb 14, 2013 | GE Advantium 120 Convection/Microwave Oven

1 Answer

GE SpacemakerXL JVM1443 stays on when door is closed


That's almost certainly a failed primary interlock (upper door switch) or its mount is bad.

See our file on info on door switch diagnosis and replacement.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

mini_manual_behind_grille_small.jpgf1b3b03.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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.

May 30, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Work light switch not working


We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week or so.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes or you can see the service manual at our site here.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

May 13, 2010 | Sharp R-1601 Microwave Oven

1 Answer

When I close the door to the mircowave the light stays on and the fan continues to run?


Assuming that the time has expired, you have a problem with the control board in the unit. You can get parts at www.repairclinic.com . To install the board, unplug unit, remove the cover. Remove all mounting screws and cable connectors on the old board. Install new unit and reassemble. You should have the problem solved. Let me know if you need more information.

hardrocko

Thanks for using FixYa

Feb 26, 2010 | GE Microwave Ovens

1 Answer

When its plugged in, its light stays on, but no heating


This sounds like the magnetron, which produces the heat. Unless the unit is still under warranty, it's not going to be worth repairing.

Nov 18, 2009 | Emerson Microwave Ovens

1 Answer

Light under unit stays on


open the oven there are two or three safty switches near door one of the switch is for light if it is short then only light will remain on.by opening door light should come on set the time and hit start light will come again. replace that switch and it will be ok

Aug 07, 2009 | GE Advantium 120 Convection/Microwave Oven

1 Answer

Under microwave light stays on


LET ME GUESS , this is a GE SPACEMAKER , OR A KENMORE ? this is a super common problem with this microwave . your control board is bad , you can get one at searsparts.com . but i warn you the cost is REAL HIGH and if your microwave is over a few years i would not fix it if i where you . this oven had another FUN thing it does . it turns it self on for no reason and have been known for burning down houses .

Mar 17, 2009 | Sharp Microwave Ovens

2 Answers

Unit does not turn off


open the control push boton and clean it one of the boton stoct.

Sep 19, 2007 | Panasonic NN-S254WF Microwave Oven

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