Samsung MW 1080 STA Weird displays when not in use
I have this Samsung MW 1080 STA for four some years, and lately showed the code A-1 in the display out of nowhere, in the middle of night, or during the day without anybody touching or using it. It'll beep twice, then, go to A-2 and A-3, and back again. When you cancel, it will disappear, but it will come back right away in 2 to 3 seconds. It becomes a headache because I had to unplug it after each use. Any ideas, please?
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Your keypad or control panel are malfunctioning.
A bad keypad may be worn out due to age, damaged, or it may have gotten wet or otherwise contaminated.
Moisture and contamination can be caused by not using the fan when boiling on the stove top, spraying of cleaners, by storing the microwave in an unheated garage or shed, or infestation.
I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller.
Apply an alcohol-based cleaner (such as the purple kind) to a cloth (since paper towels can scratch) and gently wipe it off.
I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics.
You can order replacement parts here: http://www.samsungparts.com/search/search.asp
If you or a friend decide to work on it, we have *critical* safety & disassembly, info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk
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The operation manual is available for free download from Samsung at this site:
The answer to how to lock and unlock is on page 15 of the manual. It's instructions are:
1. Press the '0' button, the display will show:
"PRESS 1- DEMO 2-CHILD LOCK"
2. Press the "2" button, the display will show:
3. Press the start button and the display will show "LOCK" then returns to the time of day.
At this point the microwave can't be used. To unlock, just repeat steps 1-3.
Hope this helps
1 Press the Sound button. The display shows "ON".
("START" will flash)
2 Press the Sound button to turn the volume off. The display shows:
"OFF".("START" will flash)
3 Press Start. The display returns to the time of day.
Lastly, you can find a copy of the manual here:
The "Handy Helper" pad may be sticking, indicating a failing keypad. That pad will cause the display to read "A-1".
I would suggest unplugging the oven from the wall for a few minutes, then plugging it back in.
If it still has a problem, you may need a new keypad, which can be had here: http://www.samsungparts.com/search/search.asp
If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk
Post back here if you need more help.
If you don't have the owner's manual, you can download it here:
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.