I just replaced a bunch of parts and the center vent now opens with the A/C on. It does not open when going from off to EC (economy) mode. However when I switch from A/C to EC it stays open. Normal?

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma