TO CHANGE AN EXISTING, KNOWN PIN If the existing PIN is known, it may be changed by one person without using a ladder. 1. Press the four buttons for the present PIN, then press and hold the # bunion. ‘The opener light will blink twice. Release the # button, 2. Press the new 4-digit PIN you have chosen, then press ENTER. The motor unit fights will blink once when the PIN has been learned. Test by pressing the new PIN, then press ENTER.