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Thread: strange defrost procedure !!
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12-01-2015, 05:40 PM #1
strange defrost procedure !!
Hi
how r u
Samsung floor standing split ac
classic non inverter
R22
29000 BTU
220 volt
here the temperature reached -2 C
in heating mode
normally unit go in defrost to melt ice on the outdoor unit
what i know is
when the thermistor in outdoor unit senses low temp its call for defrost
what must happen
just indoor fan and outdoor fan turn off and then 4 way valves revesre to cooling mode while compressor keeps work
until ice melt then 4 way valve energized to heating while compressor keeps work
in my case
what happen here
when ice severely collected on the outdoor unit
the compressor off
after many seconds 4 way valve reverse cycle in to cooling mode
then compressor then run
after ice melted compressor go off then after seconds 4 way valve revers to heating mode
now why compressor go off for a while
instead of continuous work as in other split ac unit
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