Dryer would not require start button to start, and buzzer would only stop after dryer door opened.

Disconnect dryer power supply, remove back cover from console, by removing 5screws. Pull out start switch using screwdriver to release plastic locking clips, disconnect wiring harness, reconnect wiring harness to new switch, and slide new switch into the mounting location, allowing the locking clips to engage. Reinstall back console cover, reconnect power supply, and test.