Your fan will need to go on one of the relay switches (4 or 8): unless you hook a higher draw device up with it (a weak heater, or something). Low draw devices don't work reliably on the other switches. My aqualifter has to go on a relay switch. 
		
	
		
		
		
		
			
				__________________ 
				Shelley
			 
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
	 |