If you know for certain the fuse or circuit-breaker in your home is not tripped, or the wall safe button on the wall plate where the power cord is attached to is reset to normal; (Called a Fault Switch) then try to restart after putting the power cord back into the receptacle. If that did nothing for you, a problem with the panel switch or internal circuit board may be the problem. If so, you need a professional service technician out there to test the unit.
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If you know for certain the fuse or circuit-breaker in your home is not tripped, or the wall safe button on the wall plate where the power cord is attached to is reset to normal; (Called a Fault Switch) then try to restart after putting the power cord back into the receptacle. If that did nothing for you, a problem with the panel switch or internal circuit board may be the problem. If so, you need a professional service technician out there to test the unit.