Buttons are hard to press or stick, and some functions do not engage unless pressed very firmly.

Safety first: Unplug the unit before working on the control panel.

Steps to improve button function:

• Clean around buttons: Use a slightly damp cloth to remove grime from the button edges. Do not let liquid run into the panel.
• Inspect overlay: Check if the plastic overlay is lifting or warped, causing binding.
• Replace control panel: If buttons remain unreliable, replace the control panel or UI board assembly.