If your garage door wall button isn't working but remote and keypad do work, problem is isolated to wall console wiring or wall button itself, not opener power or logic board, since remote and keypad use radio frequency while wall button uses low-voltage wiring. The most common cause is loose or damaged wiring connecting wall button to opener, as two low-voltage bell wires run from wall console to opener terminals and can become loose, corroded, disconnected, or damaged by staples piercing wire or rodents chewing, preventing signal, so turn off power, remove wall console cover, and check wiring connections, tightening terminal screws and ensuring wires secure. Try shorting the two wires at opener unit by touching them together briefly; if door operates when wires shorted, wall button itself is faulty and needs replacement costing 20 to 50 dollars, as button contacts worn after years of use. Check wall button for damage, stuck button, or debris preventing contact, and clean contacts with electrical contact cleaner. Another cause is wall button in lock mode that disables wall button, though lock usually disables remotes, so check lock button. Ensure wall button wires not stapled too tight causing short. If wall button is old and uses circuit board, board may have failed. Replacement wall console can be installed DIY by connecting two wires to same terminals on opener. If wiring and button both good, opener terminal for wall control may have failed, requiring logic board replacement costing 150 to 300 dollars, but this is rare when remotes work.
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