They didn’t dial 911 after the air conditioning failed and temperatures began climbing dangerously high inside a building filled with people in poor health. Nobody notified the state Department of Health. It wasn’t until a visitor finally reported the problem to police, said authorities, that dozens of first responders began arriving to help evacuate more than 100 residents from the Voorhees Care and Rehabilitation Center in Camden County on a steamy Sunday afternoon. A day after an emergency that saw some patients moved out of their rooms and taken by ambulance to nearby nursing homes that could accommodate them — while others were simply pushed across the street in wheelchairs to a high school serving as temporary refuge — the situation at the nursing home on Laurel Oak Road in Voorhees was returning to normal. But questions remain.