Heat is not working on 2003 Ford Explorer

My heat isn't working. When I cut it on, I hear a click, click, click noise. The air is blowing but no heat seems to be coming out of the vents.

moh5124@gmail.com

Asked by for the 2003 Ford Explorer
1 answer
Check out this thread. Looks like you have a similar problem:
http://repairpal.com/what-is-the-price-to-repair-the-tempature-blend-door-actuator-443

Zee