Toaster button does not latch. - Black & Decker TRO210 Toaster Oven with Convection Cooking

The buttons latch is actually an electromagnet that is engaged and disengaged by a small timer located on the toasters circuit board. The most likely reason why the button will not stay latched is a bad connection to the magnet. Unplug the toaster and open the right side panel by removing the machine screw located on the underside of the toaster. You will notice a pretty simple circuit board with 2 (usually red) wires leading to the magnet. If you have trouble locating the magnet, push the "toast" button and watch out for the component it butts up too. Because the wires attached to the magnet are soldered firmly to the circuit board, the poor connection is usually at the magnet. Gently push the wires towards the magnet to ensure a good connection. To test, plug the toaster in, being sure to remove any tools or loose components from the toaster, and push in the button so see if it latches. If it does latch, open the door to disengage and unplug the toaster before reassembling. If it does not latch, you may need to replace the magnet.