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The keypad is not working right.It will not shut off. It is running now, but have to unplug it to shut off.

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  • Microwave Ovens Master
  • 9,047 Answers

It may be a shorting relay on the the control board, or a problem with one of the door switches or its mount.

I regularly repair these microwave controllers and details are here.

I would need the model number and FCC ID number off the model tag to look up the schematic.

It's best to follow up with me directly. (FixYa does not notify us directly when follow-ups are posted, so we have to log in to the site to see them.)

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Posted on May 25, 2017

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1 Answer

Troubleshooting


you probley need a magnatron..also check your door saftey switched

Aug 14, 2014 | Microwave Ovens

2 Answers

Samsung Microwave Mod # SMH9187ST. Starts on its own, "bake potato" on display screen. After shutting down, code SE appears on screen. No response from keypad until unplugged. Reset and problem ret


Contact Samsung, I was having a similar problem with the SE error appearing on my microwave. Apparently its a problem with the control panel and they are going to replace it free of charge under there epidemic warranty

Mar 18, 2013 | Samsung SMH8165W Microwave Oven

1 Answer

Kenmore 401.80083700 won't turn off


It is one of two things, a defective door switch, or the keypad control board has failed.

Apr 18, 2012 | Kenmore 68361 Microwave Oven

2 Answers

My GE microwave has a Keypad short. Do I have to replace the entire control panel?


Depending on part availability I would recommend the replacement of the keypad "membrane often shorts" but they may offer the control board with it since it ties together.

Mar 14, 2012 | GE Microwave Ovens

1 Answer

We have a Panasonic Microwave. model number NN-P295 1100W. We had a leak above our microwave 3 days ago. The fan immediately came on and will not shut off. No features will work on the microwave. We...


This not good! from your description the problem is in the keypad controller, on the back of the keypad is a circuit board that contains the microprocessor and additional parts that control vital areas of the microwave oven. The leak has penetrated the vital areas where the electronics are housed, I suggest you replace the microwave oven because the cost will probably more than what a new one will run.

Feb 08, 2011 | Panasonic NN-P295SF Microwave Oven

1 Answer

I have a Whirlpool MH7140XFQ-0 Microwave and last night it stopped working with the screen showing F6. I unplugged it for over an hour and plugged it back in and it went right to F6. It tries to run if the...


"F6" on a Whirlpool microwave means you have a shorted cook relay on the control circuit board.

For model MH7140XFQ0 the control circuit board would be part number 4393919, which you can order from the Pros here for $132.23.

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.

Then you unplug the keypad (as per the photo below) take out the old board, then move the new circuit board into your frame.

34374fd.jpg

Some connectors on the relays may have a lock:

positivelock.jpg


Otherwise, we regularly repair these boards with our $39.95 nationwide service. Details are here.

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

Jan 23, 2011 | Whirlpool MH1140XMS Microwave Oven

1 Answer

Keypad inoperable


Does the display say F3? You probably have a shorted keypad.

If you might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

It's at http://www.microwavedisplay.com/keypad_replacement.pdf

We have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Essentially you unplug the oven from the wall outlet, and remove the control panel assembly as per the instructions at the site linked above.

(Remove the grille from across the top, remove the top screw in the control panel frame, then lift up & out).

There should also be a very helpful "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille.

Then unplug the keypad from the circuit board, heat up the keypad from the front with a hair dryer, then peel the old keypad off.

You have to make sure all the old adhesive is off or the new keypad will not stick.

I use paint thinner or mineral spirits, then follow up with isopropyl alcohol to be sure the panel face is squeaky clean and dry.

Then peel the backing paper from the new keypad and carefully press the new keypad in place.

You need to be precise - you cannot apply it, peel it off, then reapply it.

If you would like to have us do this for you, we do that for $39.95 plus part costs.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Jun 18, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Runs whenever door is shut, displays "8 lo code", can't cancel


This is usually a shorted keypad or a problem on the control board.

We regularly repair these for customer nationwide for only $39.95, plus parts cost if a keypad is needed.

Please feel free to contact me directly if you need more help.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Jun 03, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Emerson microwave 900w


i believe majority of emerson got programmin ERROR intheir KEYPAD.. my emerson microwave got similar issue ..its a brand new one abt few monts old..it started actin weird way ..its keypad wont work..tried many thing unplug it pluge it back in everthing tht necessary..but still keypad is locked..no not the child procted locked..it locked with a digits 00.00 ...sometimes it work sometimes it dont...so no clue wat to do ...

Feb 17, 2008 | Emerson Black Microwave Oven

1 Answer

Error code of F-3.


F3H —Humidity Sensor Failure: Refer to the Tech Sheet and test the sensor.
The microwave oven may be provided with a self diagnostic routine that can be operated through the touch pad keyboard. To enter the self-diagnostic routine:
1.While pressing the CANCEL keypad:
a) Open the oven door.
b) Unplug the microwave oven for 2-seconds and plug it back in.
c) Release the CANCEL keypad and close the oven door. You will see the following display.
CHART
NOTE: The humidity sensor test results will appear on the display after 8-seconds.If the tests are successful, "OK " will be displayed. If one or more of the tests fail, "ERR " will be displayed.. 2.When a keypad is pressed, a number according to the test chart will be displayed. When no keypad is pressed, a blank "—" is displayed.
If you want to try to fix it your self, Always remember Electricity is dangerous and should be treated with respect.
Microwaves are very dangerous, they can still shock you even unplugged!!
Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it. With the microwave unplugged.
If my attachment made it, it shows a common way to do this....
Good Luck!
Always remember Electricity is dangerous and should be treated with respect.
Microwaves are very dangerous, they can still shock you even unplugged!! These pages are to help give you indications of what might be wrong and some safe "how to check" or repair help.
Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it. With the microwave unplugged.

Oct 29, 2007 | Kenmore 62702 Microwave Oven

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