AC stays on even in the heat position

Asked by Feb 18, 2017 at 03:45 AM about the 2003 Mercury Sable GS

Question type: Maintenance & Repair

2 Answers

112,395

You selector switch is no good and needs to be replaced

75,545

Unless you are on defrost the AC clutch will kick in but you would still get heat if thats what the temp. control is set at. Also there are other sensors to be checked out in a AC system that could cause this.

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    JP1956
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