This little video explains the ADC system used in GE's newer top-mount refrigerators, the so-called "TMNF" line. Example model numbers are:

GTH/HTH 16 cuft

GTH/HTH 17 cuft

GTH/DTH/GTS/PTS 18 cuft

In the video, I explain I how this ADC works and how to put it into manual defrost mode. (Short answer: Press the fresh food door switch 3 times within 5 seconds and close the FF door when the control is not in defrost or dwell.)

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