Using emergency heat (heat pump systems only)
Emergency heat is useful when the automatic auxiliary heat system
can't keep up with demand. (Systems with heat pumps use "auxiliary
heat" when it's too cold outside for the heat pump to heat the house
without help. The display indicator for this is auxiliary heat on.)
If the heat pump compressor that works with auxiliary heat fails, or if
the heat pump isn't working at all, you can turn on the emergency heat
for that extra help. (You'll know there's a problem if the house can't
seem to get warm when it's very cold outside.) You want to avoid using
emergency heat, though, because it's the most expensive option. And,
of course, if you suspect a problem with your heat pump, call your
heating and cooling dealer immediately.
Here's how to set your thermostat to use emergency heat.
1. Open the door. _m
2. Press the mode button repeatedly until the arrow under o
the button moves to Em heat on the screen.
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3. Close the door.