In these new fangled ice boxs is what you call adaptive defrost
control. Instead of the old tried and true defrost timer, brainiacs
have decided to use artificial intelligence to determine defrost.
The basic pattern of adaptive defrost is:
I ain't making this up. The ADC (adaptive defrost control) Counts the
number of times the doors are opened, the total compressor run time,
and the length of time the defrost heaters were on during the last
defrost. This method supposedly enables the adc to work nice in all
kinds of conditions, whether hot and humid or cold and frigid climates.
COOLING Mode will remain for an indefinite time or until defrost is
determined by the micro-processor. When all systems are go for defrost
the adc makes the jump to light speed by going into PRE-CHILL, this
brings down the temps in the freezer to off set the defrost operation
so that the food temp does not suffer dramatic temp rises. Pretty cool
ain't it? If the ice box is in pre chill and the door gets opened then
a DEFROST HOLD OFF will jump in and not do a defrost for several hours.
If the door is continually opened at the end of 16 hours the adc is
gonna defrost that ice box anyway. The defrost period varies but is a
maximum time of 45 minutes including when the DWELL kicks in. Dwell is
the length of time the ice box stays off AFTER the heater is terminated.
The POST DWELL will kick in. The post dwell will fire up the compressor
and condenser fan but the inside fans will not run allowing the coils
inside to cool down before them fans kick in and she jumps back into
Cooling mode. I bet you would like to have a copy of GE's adc repair
manual wouldn't you? TECHNICAL SERVICE GUIDE
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