if you have an issue with something powered by electricity, why do you need to count till 5/10 when you unplug/turn off power before restarting it?
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Lot of technical answers here, but not much “why?” Many electrical devices are designed to keep running right through a short power outage, like when your lights flicker. But in cases where they get confused and need to forget what they were doing and start over, leaving them off for several seconds lets them know that they should stop trying to keep going but start over clean instead.
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