Question about Samsung MW1080STA Microwave Oven

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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: 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:

Posted on Apr 24, 2007


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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.

Apr 04, 2007 | Samsung MW1080STA Microwave Oven

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