Used circuit tracer to find electrical circuit that was not working. Took apart and checked all outlets and switches. Also verified wiring inside panel box. Took light apart in bathroom and checked wiring in fixture. Found a switch on the garage side of shop that a black wire fall out of wire nut. Replaced orange wire nut with yellow, cut back bare copper wire and re did the 3 black wire bundle behind switch. Verified 120volts to all outlets and resecured them to handy boxes and put covers back on.