If a 4 slice toaster heats up in only 2 of the 4 slots, what can be done

Medium-Duty 4-Slot Toaster, 1800 Watts four slot toaster This toaster is a counter design element, it toasts just like other toasters, its features are that it toasts bread and bread like objects based on the duration fourth slot in a baseball lineup This toaster is a counter design element, it toasts just like other toasters, its features are that it toasts bread and bread like objects based on the duration

four slice long slot toaster 4 Slice Pop-up Toaster · High quality stainless steel insulated body for cool touch and durability · Multiple Functions: defrosts, reheats previously toasted