Air Conditioner - Heat and Cool Unit Not Heating Properly

There are several things you can do to optimize the heating effectiveness of your heat and cool air conditioner:

  • Make sure the mode switch or selector switch is set to HIGH HEAT and the temperature control is set to a higher number.

  • Make sure the air filter has been cleaned in the last 30 days. For more information, see Air Conditioner - Cleaning the Filter.

  • Make sure nothing is blocking the air flow coming from the air conditioner such as furniture, drapes or lamps.

  • Make sure the air flow from the outside rear grille is not restricted. This may cause the unit to cycle off due to compressor overload.

  • Use the Electric Heat option on models that offer this feature. This turns off the heat pump (on models so equipped) and will warm the room with electric heat only.

  • Adjust the air directional louvers upward to promote improved airflow.

  • Check all windows and doors. Make sure the windows and doors are closed and have a good seal to prevent drafts and heat loss from the area being heated.