A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the heater gets stuck on the hottest setting, the heater blend door may be broken requiring replacement of the heater box to repair the issue.
Resources for the Repair and Maintenance of your 2009 Ford Explorer
2009 Ford Explorer
2009 Ford Explorer Problems
2009 Ford Explorer Questions and Answers
I accidently poured a cup of coffee down my dash. My air/heat is now stuck in the defrost mode. It blows cold air into my window regardless of the position of the knob. It does blow cold air when...
how do I change from kilometers to miles on the odometer. I have tried the reset