Buttons on the control panel do not respond or require very hard presses to register.

Safety first: Disconnect power before working on the control panel.

Steps:

• Clean surface: Wipe the panel with a slightly damp cloth to remove grease and residue. Do not allow liquid to seep into the edges.
• Reseat cable: Remove the control panel and reseat the keypad ribbon cable on the main control board.

Repair: If buttons remain unresponsive or intermittent, replace the touch control panel assembly. In some models, the keypad and display are a single module.