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Frozen pump american standard 2A6B3060-SF-1A

The heat pump is frozen and I can't get it to defrost the LED light is flashing 3 times I did jumped the defrost board and it stop the fan and went to defrost but didn't go on long enough to defrost?

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Posted on Jan 02, 2017

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Defrost cycle is to allow frosy or ice to melt down and not restrict the output air. The thermostat is set too low and in high humidity ice forms quickly restricting the air flow. tur up the thermostat and let the room cool gradually.

Posted on May 27, 2009

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SOURCE: LED on defrost control board is blinking 3 times

Does not initiate defrost on ots own. Loose sensor. If sensor is not loose replace defrost board and sensor. Russ

Posted on Mar 25, 2010

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