2008 Mercury Grand Marquis Q&A
2008 Mercury Grand Marquis Question: Has anyone lost their heat in this vehicle and fixed by resetting codes?
Here is the process I used that worked for another person on this site but doesn't appear to be working for me: Press at the SAME TIME, "OFF" & "FLOOR" , then Press "AUTOMATIC". The Display will turn a digital circle for awhile until it will stop on it's own to display any Error Codes. In my case it displayed a steadt "024". That means "Door Actuator". In fact while it is diagnosing you can hear it trying to Reset the door by a repetitive clicking sound. After doing this self-diagnose/Resaet sequence three(3) times, WARM air finally started coming out the heater vent. (It was late night & freezing at the time.) - booboo2112
the blend door actuator is either bad or the blend door is broken. very common on fords. the clicking was it skipping teeth. it should reset with no noise - globalhelper