This question regards an air handler that is inside the house, first floor closet, vertical position, with the intake right below said unit. The other day I removed the intake grill to check the A-Coil and there was a support 2"x4" that had been placed right in the center of the opening. I was able to squeeze by it sideways, twist around enough to be able to look up at the A-Coil, but it got me wondering. I am a small guy and barely got in, so what do the big hvac service guys do? You must certainly have to remove the 2"x4", but do you put it back in the same place or reposition off center for the next guy or just leave it out altogether? Thanks for any comments.