How can I convert 250V recepticle to 110?
In my bathroom is a recepticle with 2 horizontal eyes and a D-shaped mouth. One of the eyes has a vertical T component as well. The unit is marked 20A 250V. It was likely installed with the bathroom addition maybe 20+ years ago, maybe for a heater, or an A/C.
Inside, there are two hot wires (old insulation) running to brass screws on either side (mouth level) of the recepticle and a black-insulated wire running to a green screw. The feed is flexible metal conduit. When I poke my $5 tester in the eyes it lights up two lights (240V).
At the main panel there are two 40A breakers on the same bus that go to the recepticle. They might have been hooked together at one time but now, in addition to controlling the recepticle they control various household lights and recepticles and the garage. When I open either one of the breakers the voltage meter drops to only one light (120v).
What needs to be done to covert this recepticle to a standard household current?
Thanks in advance