This is due to cold’s affect on the chemical reaction required for the batteries to work. It is important to remember that metal contracts in cold temperatures and expands in the heat.
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The cool temperature also slows the chemical reaction needed for the batteries to function. Whenever the temperature drops to freezing or below, my garage door keypad (it's a craftsman, no idea how old it is. You can leave your house without a garage door opener, yet still feel secure in the knowledge that you’re protecting your home. Most garage door keypads take a 9 volt battery, though some do use a 12 volt.
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If your garage door keypad is not working after you’ve checked the batteries, looked for frayed wires, and examined the pad for broken or stuck keys, then you might have to simply replace the keypad. Whenever the temperature drops to freezing or below, my garage door keypad (it's a craftsman, no idea how old it is. Sometimes the bulb can interfere with the keypad/controller signal. I've tried changing the battery but it doesn't make a difference.







