What is MEMBRANE SWITCH? - Panasonic NN-T888S Convection/Microwave Oven

What the manual tries to say is that if the touchpad membrane switch aka "membrane" has failed, the control board/panel may have failed.

Did you replace bulb yourself if so it may look a good bulb with filament complete but if you have touched the glass part of bulb with your fingers it can knacker the bulb.
Also the switch membrane panel traces the circuit from both the switch membrane and the lighting circuit to the power circuit board. So, I know that both the lights and the switch membrane have a common terminus on the power circuit board. Since the circuits from both sources lead to a common point,

some time due to moisture the membrane switch stops working - which can't be repaired - the only solution is to replase it.

see the video how to procedure carefully, and fix it. God bless you
the parts you can go to www. repairclinic.com

Yes! so long it is the correct part and make sure unit is unplugged for safety, "lethal voltages" if unsure call a professional.

Hi, here is the answer for f2 "F2 - error code means "Shorted keypad".
Remove power from the range, open the control panel and unplug the membrane switch ribbon from the control board.
Reconnect power to the range and observe for an hour.
If the error code reappear - replace the control board.
If not - replace the membrane switch.

You have a shorting membrane keypad. If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and of course one should never leave a microwave unattended while cooking.

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.

You can order parts by entering your part number here.

These are the part numbers by color:

8205638 SWITCH, MEMBRANE WHITE
8183551 SWITCH, MEMBRANE BLACK
8183552 SWITCH, MEMBRANE BISCUIT
8183553 SWITCH, MEMBRANE ALMOND

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

For this model, the keypad would run an additional $75.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly with your brand, model and symptoms for more FREE help & do-it-yourself advice.

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http://www.fixya.com/support/t2931938-kenmore_over_stove_microwave_model

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

model # MH6150XLQ
LOST POWER. I CHECKED WALL RECEPTACLE. IT'S GOT POWER.
MICROWAVE IS DEAD. NO LIGHT..........NOTHING.

WHAT'S HAPPENED?

Hi,

Yes, you are correct. The membrane switch for this model was discontinued. The correct part number for the membrane switch is A630Y5460HAP for model NN 9859.