The Person In Charge (PIC) not ensuring that the Time/Temperature Control for Safety (TCS) foods are being held at the correct cold hold temperature inside the prep top cooler and inside the walk-in cooler. The food items were not moved to another cold holding unit after noticing the ambient air temperatures of the units were above 41 F. Since the food items were still inside the units past the 4 hours, the food items were not able to be saved. Employees are properly cooking cold/hot holding, and reheating for hot holding time/temperature control for safety food, being particularly careful in cooking, reheating, and holding those foods known to cause severe foodborne illness and death, such as eggs and comminuted meats, through daily oversight of the employees’ routine monitoring of the cooking, holding, and reheating for hot holding temperatures using appropriate temperature measuring devices properly scaled and calibrated. Corrected on Site (COS) Food items discarded. Please contact a reputable repair company to provide repair services to the prep top cooler and the walk-in cooler.