LG Microwave Beeps 3 times, display shows F3 and keypad dead.

From page 23 of Service Manual, --SE-- is a membrane keypad error.
Replace control panel.

HELLO.

THERE IS SOLUTION TO THE PROBLEM.

GE microwaves with a digital display will show an error code when there is a problem or malfunction with the unit. One type of error code that will be displayed on a GE oven and require troubleshooting is a code F3.
An F3 error code indicates that the keypad for the control panel is bad. This will cause the microwave to beep continuously after the set clock message appears.

Need things

* Phillips-head screwdriver
* Hair dryer
* Key panel
* Key membrane

1 Unplug the power cord for the microwave from the electrical outlet. Pull the microwave out from the wall and set it on a table or the counter.

2 Find and remove the two screws from the top of the grille, on the font of the unit, with the Phillips-head screwdriver. Pull the grille off of the microwave.

3 Find and remove the screws that are used to secure the control panel to the microwave frame. Lift the control panel unit up and away from the microwave.

4 Find and remove the screw that is used to secure the green ground wire. Pull out all of the connectors and ribbon cables from the control board.

5 Apply heat from a hair dryer to the front of the control board for at least 30 seconds. Make sure the hair dryer is at the low setting. Pull up on one corner of the top membrane, then peel it off of the control board.

6 Repeat Step 5 for the other membrane that is on the control board.

7 Insert the pliable circuit of the new membrane through the opening in the control board. Remove the wax backing to expose the adhesive for the membrane. Place the membrane onto the control board.

8 Peel the wax backing off of the top membrane, then place it on the control board.

9 Place the control board back on the microwave and secure it with the screwdriver. Reattach the grille, and set the microwave back in place.

10 Plug the microwave back into the power outlet and reset the clock.

Willing to help on other problems.

Thanks.

F3 means that a contact is shorted on the control panel. Replacement contact panel required I think.

F3 on a GE / Hotpoint microwave means you have a shorted membrane keypad.

Since it's a basic counter top microwave, this may not be worth repair when you consider the cost of a new comparable unit.

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

The part number of your keypad is WB27X10624 and you can get it here for $51.37 plus shipping.

Good luck!

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

F3 on a GE / Hotpoint microwave means you have a shorted membrane keypad.

I would need to know your actual model number to tell you exactly, but on GE most models you can replace the control panel assy, which comes with a new keypad, and that's an easy DIY job with a part cost of about $100, sometimes less.

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.

Next, disconnect the strip as shown in the photo below, then remove the screws that hold your circuit board in the old frame.



Then carefully (since the display is made of glass) move your circuit board to the new frame, and reassembly is the reverse of disassembly.

You can find exploded view diagrams and order parts here.

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

thank you, problem resolve....bought new micro

Code F3 on a GE microwave means you have a shorted keypad.

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

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

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
[email protected]
http://www.microwavedisplay.com

In most cases that code means you have a shorting keypad.

If you could post the full model number, I'd be happy to point you to the best source in case you or a friend want to replace it yourself.

Otherwise, we regularly repair these for customers nationwide for $39.95 postpaid plus thew cost of the keypad.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk


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

I couldn't find those exact trouble codes, but a common problem is when the controller gets damp, either from steam rising from the cooktop or someone spraying cleaner directly on the keypad. Cleaners should always be sprayed on a soft cloth, then wipe the keypad with the cloth. Also, GE / Samsung codes of F1, F2 and F3 may be the same since Samsung makes GE microwaves. Those would mean trouble with the temperature sensor, keypad, or control panel. Assuming your control panel is clean and dry, it may be time to call for service.

On a GE microwave F3 means you have a failed keypad.

We replace these for customers nationwide with our guaranteed $39.95 service.

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

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
[email protected]
http://www.microwavedisplay.com