The screen has a 25 second “ON” timer. It is to save us screen replacements over the warranty period and the years. It is a screen saver It was also the answer to people complaining about the bright screen remaining on, in a darkened room. Usually people can program the machine quickly enough that the light stays on. If the light has gone off During Programming mode PRESS THE (CW) or (RF) button to switch the light back on without altering the program In any other mode use UP / DOWN arrow, to bring screen back on, or the ESC button.
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