Aprilaire 4310 Power Pack Door Old Style

Aprilaire 4310 Power Pack Door Assembly Old Style. Replacement door assembly. This door contains the high voltage power pack assembly for Aprilaire model 5000 air cleaner. Fits old style 5000 models made before May of 2005. Has a long hooked end on one side and a spring latch on the other edge to hold it onto the cabinet. It also has a green LED indicator light next to the on-off switch. This is a series I replacement power pack.NOTE: The original door shipped with units made from 2000 to 2002 had a built in air flow sensor. This new replacement model does NOT have a built in air flow sensor. It does NOT hurt the air cleaner to be powered up all the time and there is no fire hazard either. NOTE: This item is discontinued and no longer available.