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heating-control on 2005 Mercury Grand Marquis

can not change heating temp. changed from 80 degrees to 60 degrees still come out hot

Asked by for the 2005 Mercury Grand Marquis
adv you nave it done as not to break the doors
2 more answers , 3 more comments
adv you nave it done as not to break the doors
Temp/blend door actuator would be the most common problem, now changing it another job.
Is that the same as heater control valve
No. It's a small motor in a plastic box that mounts on the top middle of the heater box under the dash that controls or turns the door from the a/c to the heater core. Just changed one last Friday. Have done many over the years.
Thanks