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.
1 Make sure itâs programmed and operates the door. 2  Make sure the button in your car is cleared/reset if required. 3  Set-up a ladder, if required; for easy access to the learn button on your garage door opener. 4  Locate the learn button. 5  Refer to our article on programming garage door remotes for more info. Pull your car into the driveway, directly in front of the garage door. 2  Close the garage door. 3  Press button on remote and hold (if door doesnât go up, press the button again and hold).