The two-key switch turns off both lines with one button
Hello! When replacing a double switch, I encountered a problem, connected correctly. On the one hand, I inserted wires from each light bulb into different holes in each of the holes. The switch with the indicator works either 2 bulbs at once or not one, for which I do not understand the reason, the problem. Could there be a breaker marriage?
And which switch did you have before and which one is new? Maybe his contacts are separated in another way and now they hang both lamps on one key?
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