If your garage door opener is not responding to button press, whether wall button or remote, several causes related to power, wiring, sensors, and opener failure can prevent response, requiring systematic troubleshooting. First, check power, as opener may be unplugged, breaker tripped, or GFCI outlet tripped, so opener lights off indicate power issue, and ensure outlet works with other device. Wall button wiring may be loose, as two low-voltage wires connect wall console to opener and can become loose, corroded, or damaged by staples, so turn off power, remove wall console cover, and tighten terminal screws. Remote battery may be dead, causing weak signal, so replace battery and reprogram remote by pressing learn button on opener and pressing remote within 30 seconds. Safety sensors near floor that are dirty, misaligned, or have blinking LEDs can cause opener to not respond to close command, so clean lenses and align until both LEDs solid. Manual lock on door track engaged physically prevents opening. Broken torsion spring makes door too heavy and opener may hum but not move. Disconnected trolley from emergency release cord prevents opener from moving door. Lock mode engaged on wall console disables remotes, so press and hold lock button to unlock. Travel limits set incorrectly or logic board failure also prevents response. Try shorting wall button wires at opener unit by touching them together; if door operates, wall button is faulty and needs replacement costing 20 to 50 dollars.
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