I have a 2014 FX4. When I run my HVAC on anything but floor it makes a clicking noise from behind the dashwhen I select floor it stops. The heat and air both work but only on floor vents and defrost nothing comes out even though I can hear fan running. I suspect blend door actuator, but why then does my floor vent work fine?

 

Cause that's where it broke..

 

I think it is not installed properly. It is always recommended to call air conditioner installations NJ experts at the time of HVAC installation. They are experts who have been trained in electrical fields, plumbing and other various trades. To solve this issue you can contact local HVAC professionals.

 

^^^ lmao ^^^. He is not talking about his house unit..