Range Hood Buttons or Keypad Not Responding

What it
usually means.

Hood controls come in three kinds. Mechanical controls, rocker, slide or push switches, carry the current to the blower and the lights directly. Electronic controls are a keypad or glass touch strip that sends a low-voltage signal to a control board, which then switches the blower and the lights through relays. Many higher-end hoods add a remote, a wall control for a remote blower, or a wireless link to the cooking surface and an app. Each fails in its own way. Mechanical switches fill with grease and steam and stop closing cleanly. Keypads suffer from moisture under the membrane and from cracked ribbon cables; glass touch controls can be fooled by grease or water on their face, and many have a lock that owners switch on without knowing. The board can lose its settings after a power blip, or fail and stop reading any input. A remote may simply need batteries or to be paired again. None of this calls for opening the hood from a ladder; the checks that matter are done from the floor, and the rest on a visit.