Q: Have heater for the front window while air conditioner is off

asked by on

We can feel the heat blowing from the vent for the front window while the air conditioner is off. We feel that the wider the window we open, or the faster we drive the car in the winter day (not sure about summer), the stronger the heater blows. But we are sure that the air conditioner button is off. While we are having the air conditioning (at around 22 degrees), we do not feel it that hot, and the wind is not that strong either. So we are wondering that if it is the issue from the air conditioning or the heat is actually from the engine.

My car has 52000 miles.
My car has an automatic transmission.

The heat is from the heater core of the engine. You are feeling the air that comes in from the fresh air intake vent for the A/C heat system just below the windshield on the outside. This is normal and default for defrost when you have turned it off but it should still seal heat from getting to the windshield. The problem is that the blend doors in the evaporator heater case are not sealing 100 percent. It’s possible for this to be a normal condition for Jeep Liberty’s. If you feel like it’s still an issue, I suggest contacting a certified technician, like one from YourMechanic, who can diagnose the issue with your A/C firsthand and help you fix it accordingly.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Have heater for the front window while air conditioner is off

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Have a jeep liberty 3.7 and it overheats and runs rough at idle and sometimes hard to start.Also throwing misfire codes 1 and 5

Hello, thank you for writing in. There is a chance that the misfiring is being caused by the coolant leak/overheating issue. The first thing you want to do is find the source of the coolant leak, and take corrective action....

Q: What do the air bag On and air bag Off lights mean on the dash?

Depending on whether the front passenger occupant classification system detects that the passenger front seat is empty, detects a child, or determines the passenger is an adult, it will turn on or off different lights, as well as controlling the...

Q: Put air in tire, but light still on

It is possible to have the tire plugged or patched unless it is a run flat tire. Most manufacturers do not recommend repairing run flat tires. Any tire retailer or dealership can advise you if the tire can be repaired....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...