1 The second rectangle has a length of 16 centimeter (6.3 in) and a width of 8 centimeter (3.1 in). 2  Find the linear scale factor between the two shapes. 3  The length of the smaller rectangle corresponds to the length of the larger rectangle. 4  The length of the smaller rectangle equals 4 centimeter (1.6 in).
Reset the Keypad. The Smart or Learn button on the motorized unit attached to the garage ceiling resets the keypad and the control unit that operate the garage door opener's motor. You'll need to enter a new code into the keypad to make it operational again and reprogram the control unit.o verify that the reset took, enter the old PIN code into the keypad to see if it opens the garage door. If it does, the reset didn't take. Repeat the step to reset the keypad and verify the old code doesn't work before proceeding.
Enter your current PIN number, then press and hold the # button. The overhead garage door opener unit's lights will blink twice. Release the # button. Next, press the new 4-digit PIN that you have chosen and press ENTER.The overhead opener unit's lights will blink once when the PIN has been learned.Test by pressing the new PIN, then press ENTER and the door should move.elease the # button. Next, press the new 4-digit PIN that you have chosen and press ENTER. The overhead opener unit's lights will blink once when the PIN has been learned. Test by pressing the new PIN, then press ENTER and the door should move.