Start by diagnosing the problem to make sure low refrigerant is the issue.
													
																	Put freon window air conditioner. 
									
		
	
	
		
	
	
		
	
	
		
	
																	Turn on the air conditioner to high for a few minutes and then connect the yellow tube to the freon bottle. 
																	Loosen the yellow tubing at the gauge for just a second and then tighten it back up. 
																	While this task is usually performed by a refrigeration mechanic a lay person can complete it by purchasing a freon kit. 
																	The process can be dangerous so hire a qualified professional if you feel unsure about what to do. 
															
													
									
		
	
	
		
	
	
		
	
	
		
	
																	Windows air conditioners can however be recharged with refrigerant and be put back to work cooling a room or space. 
																	Open the freon valve. 
																	It s possible to add freon to your air conditioner unit yourself but you ll need some general knowledge about acs and a few specific tools to do it correctly. 
																	How to recharge your home air conditioner.