How Do I Fix Error Code 103 On ADT?

ADT error code 103 (solved) When you are preparing to activate the alarm, make sure that you have closed all of the doors and windows in the same manner that you do every time; Input your code and press the 5 key; Release the keypad's lock; Remove the white wire from its connection for a count of twenty seconds; Close the keypad, then reconnect the white wire that was previously disconnected; Type in your own passcode on the keypad; Additional things.