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				Pressure Switch Changing
			 
			
			I have a green switch on my aux. fan, does the system have to be evacuated to change this to the lower opening pressure red switch i have been hearing about? I believe my recirc/fresh air door is not working, when I hit the recirc button nothing changes, where is this door located so I can see if it is working? BigRichard72@home.com 
				__________________ BigRichard1972 1987 Mercedes 260e (w124) 1968 Chevy Truck "Goldie" 1985 Brunette "Margaret" | 
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