Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

Aux / Emergency Heat on Thermostat

8 Jan 2021 · 0 min

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0:23

Short YouTube instructional clip by Derek Cole explaining that when a thermostat shows "aux" or a flashing red light it means the heat strips (auxiliary/emergency heat) are active. The speaker reassures viewers this is normal for heat pumps once outdoor temperature falls (cites below ~40°F) and that the heat strips serve as a backup heat source.

Questions this video answers

Derek Cole (uploader/creator).

2021-01-08.

Around 40°F (speaker: "once it gets below 40 outside").

That the electric heat strips (auxiliary/emergency heat) are active.

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