• During Operation, point the remote control signal sender at the receiving window on indoor unit.
  • The distance  between signal sender and receiving window should be no more than 25ft, and there should be no obstacles between them.
  • Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone ;remote controller  should be close  to indoor unit during operation.
  • Replace new batteries of the same model when replacement is required.
  • when don't use  remote   controller  for a long time , please take out the batteries 
  • If the display on remote controller is fuzzy or there's  no display , please replace batteries. recommendations