Loud bang when switching between vent modes... - ZR-1 Net Registry Forums

rush91 · 01-06-2017

I've noticed this ever since I've had the car. A loud bang / thump / pop whenever I switch between vent modes. And doesn't matter if I'm using the A/C or heat. But for instance if the unit is set on the floor vents, and I hit the button for the dash vents, there is a VERY loud bang....Like something is hitting the underside of the dash. It only happens when I hit the button for the dash vents, or the dash/floor vent combo button. I haven't really dug into this yet, as I hardly use the A/C or heat, which both work fine. The unit works fine, all vents blow out hot or cold air.

01-06-2017	#1
rush91 Join Date: Feb 2016 Location: Carterville Illinois Posts: 846	Loud bang when switching between vent modes... I've noticed this ever since I've had the car. A loud bang / thump / pop whenever I switch between vent modes. And doesn't matter if I'm using the A/C or heat. But for instance if the unit is set on the floor vents, and I hit the button for the dash vents, there is a VERY loud bang....Like something is hitting the underside of the dash. It only happens when I hit the button for the dash vents, or the dash/floor vent combo button. I haven't really dug into this yet, as I hardly use the A/C or heat, which both work fine. The unit works fine, all vents blow out hot or cold air.