you try what Joe suggests

[LJ in TX]

but I doubt if it will solve your problems. generally if you mess up the fan hookup …it would normally only affect that one circuit not the whole apartment. from your description of symptoms,,,sounds like you have a problem with the power from the power company as it enters your power meter and breaker box. like a bad transformer or something like that. I would check with your neighbors and see if they are not experiencing a similar problem. I am surprise you were able to effectively use your PC to get your message to the fix. it board. for help. good luck and post back with your findings on cause . LJ