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The air conditioner does not cool or warm the room.

Check the following:

  • Make sure the air filters are not dirty.
  • Make sure the air inlets and outlets of the indoor and outdoor units are not blocked by objects.
  • Make sure the temperature setting on the remote controller is appropriate.
  • Make sure the doors and windows are closed.
  • Make sure the air flow and direction settings are appropriate.
  • Make sure ventilation fans in the room are not operating.