I have just moved into a place that has a keypad however it states to change access code put in previous code, I don't have a previous code or a manuel. How do I reset everything, pressing the red button on the overhead unit doesn't do it.
Model # 139.53673SRT1
Serial # 21575C00402
It had a motion sensor and indoor remote from house, but I would like to walk up to it and put in a code. Help!!
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