Cracked pivot end of a plastic HVAC blend door with annotation p…

Close-up of a removed black plastic HVAC blend door held up over a workbench, with an added red arrow and caption reading 'Note cracked end of door that connects to blend door actuator.' The splined pivot end is visibly split, the common failure that causes stuck heat or A/C temperature control.

AI caption October 2008 · Photo 560 of 4866