Craftsman wireless keypad does not light up or operate the door when code is entered.

Safety first: Do not use metal tools inside the keypad that could short the battery terminals.

• Replace battery: Open the keypad cover and replace the battery (usually a 9V or coin cell) with a new, high-quality battery. Ensure correct polarity.
• Clean contacts: If there is white or green corrosion on the battery terminals, gently clean with a cotton swab and a small amount of contact cleaner, then dry thoroughly.
• Reprogram keypad: Press the opener's LEARN button. Within 30 seconds, enter your desired 4-digit PIN on the keypad and press the ENTER key. The opener light should blink to confirm.
• Check mounting location: Ensure the keypad is within range of the opener and not mounted on metal that could block the signal.
• Replace keypad: If the keypad still does not light or respond after battery replacement and reprogramming, install a new Craftsman-compatible wireless keypad.