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Posted by buffalobill on November 16, 2006, 8:25 pm
see:
http://home.howstuffworks.com/how-to-troubleshoot-a-heat-pump.htm/printable
they are at:
http://www.residential.carrier.com/
theory of operation:
http://en.wikipedia.org/wiki/Heat_pump
mrbass617 wrote:
> I have an older Carrier Heat Pump, and while I had the unit set to cool on
> the T'stat, I smelled something burning, and after investigating, found
> that the auxiliary heat elements were on and red hot. After toggling
> between heat and cool, they switched off, but later in the night, with the
> unit set on cool, I smelled the same smell and discovered that the elements
> were hot again. These have never come on except at the coldest times, and
> they do have a smell after having not been on for a while. How can I fix
> this problem? I am afraid of a fire , not to mention that they burn alot
> of electricity. The aux heat light does not show the elements as being on
> so I am guessing there is a bad switch(?) controlling the aux heat
> elements. Any help appreciated.
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