Hello I had good intentions of replacing my bathroom light , but failed miserably.
Coming out of the wall is 2 black wires which are together with merits. I have 3 white wires and my new light has 1 white and 1 black and a ground wire.. Right now I have no power in bathroom , livingroom , backroom and back bed room. Please help me.
Hemmi

Connect all 3 whites together and tell us what happens. I will assume you are not in the US. (merits?)

I'm in Ontario Canada.I will try

Is there a light switch for this room?