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.
This keypad is compatible with all Craftsman garage door openers built after 1993, so you can get more versatility when it comes to entering your garage, and in many cases your home, without having to buy a whole new system. 1  Craftsman Garage Door Wireless Keyless Entry Pad gives you secure access to your home and garage. Open the door with a personalized 4-digit PIN without a remote control or key. Illuminated keypad makes nighttime entry easier. Easy to install with no wiring required.