What do you do when your garage door keypad doesn't work?

When your garage door keypad doesn't work and won't open door with PIN, you can troubleshoot battery, programming, and damage issues to restore function. First, replace battery, as dead battery is most common cause, with 9-volt, AAA, or coin cell depending on model costing 3 to 10 dollars, ensuring correct polarity and fresh battery, and clean battery contacts. Try entering existing PIN and pressing Enter, as PIN may still be programmed. If door still doesn't open, reprogram keypad by pressing Learn button on garage door opener motor unit hanging from ceiling briefly, LED lights steady for 30 seconds, then within 30 seconds enter PIN on keypad and press Enter until opener light blinks, indicating keypad learned. Check if wall console is in lock mode that disables keypads, indicated by blinking light, so press and hold lock button 5 to 10 seconds to unlock. Inspect keypad for physical damage like cracked case, water intrusion, or worn buttons that cause poor contact, and if buttons worn, replace keypad costing 30 to 60 dollars. Ensure no radio interference from LED bulbs in opener that block signal. Test keypad close to opener to check range. If keypad lights work but door doesn't open, logic board receiver may have failed. If you forgot PIN, reset keypad by removing battery 30 seconds and programming new PIN via Learn button. After fixing, test several times to ensure reliable operation and keep spare battery.