when my ac turns on it makes the copper pipes behind my shower get hot the pipes are about 7ft away why?
you could have air in the lines or you may need a new mastercylander.
have someone bleed your brakes you have air in the brake lines
Are the pipes attached between the outdoor condensor and the air handler ? AC removes heat from air, the heat has to go somewhere. That would be why.
master cylinder and fluid fiush