I recently was installing a new headunit and part of the process I removed the panel which holds the start button (I replaced the start buttont to red) and air conditioning vents. Unplugged everything (air conditioning cables to vent) and plugged back in and now when I have the air-con turned on (buttons all light up on air-con screen) nothing blows out from the vents. I can hear it loudly like you would expect when using normally and at full speed but cannot feel any air anyway. Vents are also open :)
Any suggestions why this may be occurring? Hope I make sense.