Why does air conditioning engage on a cool, damp, rainy day.

Asked by Aug 23, 2014 at 09:21 AM about the 2014 Dodge Journey SXT

Question type: General

On a cool rainy, damp day my air conditioning engages, on its own.  Only the vent fan is on.  The air that comes out if colder than if the air conditioning was turned on.  Dealer has no idea.  Purchased vehicle in March and this has happened 4 times now.

3 Answers

241,705

Most vehicles today when you set the climate control to automatic and a certain temperature, the AC will always come on to reduce condensation on the windshield and pull moisture out of the cabin.

1 of 1 people found this helpful.
1,695

The A/C will run any time the heater is set to defog the windshield. All vehicles do this.

Mine does this same thing. Its not set on auto and it makes the car stink really bad from the mildew smell from the A/C turning on and off.

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