Question about Heating & Cooling
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Posted on Jan 02, 2017
"outside sensor error" is indicative of a Diagnostic error display, a feature where the device checks the functionality of each attached component. It would seem that your system has the optional "Outdoor Temperature Sensor" (probably P/N TSTATXXSEN01-B). The error then indicates that either that sensor is faulty or the hook up cable is unplug or defective. If you do not observed any critical changes in the comfort inside your home or the area that your system monitors/controls, then this only confirms that it is external and a sensor problem and does not affect the A/C and/or the variable speed furnace/comfort zone system. Normal faults could be the external sensor to cable connector/terminals being exposed to the elements and would require hard cleaning.
This sensor is not critical to the operation of the system and is optional.
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Posted on Jun 04, 2008
Is this an electric or gass furnace - Eather of these can can have this problem its most recomendable that you call a seviceman .
in the case of electric furnace you may requier a new heat sequencer. And in the case of gass you may requier a new relay.
Posted on Feb 19, 2009
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