you may have the "newer" ADC Board

Posted 16 February 2012 - 12:33 PM

The "newer" Maytag ADC is a better design..

Newer OEM 61005988 (8-pin chip) 61005988 ADC Board... L1 (but NO Test pin)

Manual Defrost Cycle is tested by cycling the Freezer Cold Control 3x within 6 seconds and leaving it on MAX

click on picture

The "older" style Maytag ADC (same part number)

This is the OLD (notice the 18-pin chip) 61005988 ADC failure-prone Board

It has the L1 - TEST (lower pins on connector)

Manual Defrost Cycle is tested by momentarily jumper L1 and TEST

(with insulated jumper)

Source: maytag defrost mode