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SMX II problem
June 23, 2012
7:35 am
whichaway
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Forum Posts: 1
Member Since:
December 22, 2010
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I have a 16000 BTU Cruiseair unit with the SMX II control.  The unit will come on for no reason. The unit is off but all of a sudden the blower comes on with the control unit showing high fan and the heat mode light comes on but the compressor isn't running nor is it heating.

 

 Also, when the unit is running in cool mode , it will stop cooling (compressor stops) and the heat mode light comes on but only the fan runs (doesn't heat-compressor not running) 

 

The unit cools fine otherwise, but when it drops out to fan only, I have to hit the cool button and it cools for a period (anywhere from 5 minutes to an hour or more) and then just drops to fan mode again with the heat mode light on. 

The compressor doesn't show any undue heat when touched.

 

Any ideas