What does it mean when that colored light (auxiliary light) on my thermostat comes on?
It means that your auxiliary heat strips are running. This normally occurs if the outside temperature is below 32 degrees or if your heat pump is not functioning properly.

Does it cost me more when that colored light (auxiliary light) is illuminated on my thermostat?
Yes it does. For example, if your heat pump costs you 30 cents per hour when it is operating under normal conditions, it will likely cost you $1.30 per hour when the heat strips are running.

What does it mean when I see frost or ice on my outdoor equipment?
Under normal operational conditions, frost or ice will appear from time to time. All heat pumps must go through a defrost cycle periodically. However, if frost or ice remains on the unit for more than 24 hours you should contact an HVAC dealer.

More questions about heat pumps?
Click here to download a pdf of more commonly asked questions.