Sometimes an outlet is connected to a wall switch so you can turn on a table lamp from a wall switch. Make sure it’s in the “on” position if there is one. Sometimes the wall outlet you’re using isn’t working. May be a short or a fuse or breaker has tripped off. Reset or fix. Remember that sometimes the power cord has two ends to be plugged in. There’s the end to the wall outlet and the one to the piano. Check both.
The best way to be certain you have power is to plug something your know is working, like a lamp, into exactly the same outlet you have your piano plugged into. Sometimes the upper or lower plug is switched. Check the one you’re using for your piano. After you confirm that the outlet is working and everything is properly plugged in and the piano is still not turning on, it is time to contact Samick Support. Fill out a service request and let us or your dealer help you.