A/C blowing warm air

What is your question?

Yesterday, I noticed that the blower was pulsing but blowing cold air. Today, the blower worked fine but was blowing warm air.

What makes this problem better or worse?

N/A

How long has your 2010 Mercury Mariner had this problem?

Just started yesterday

GregW44 in Lexington KY

Oct 12, 2017

1 Reply

Popular Answer

DaveJMon Oct 12, 2017

Hello, Warm air could be the result of a concern with one of two systems: Climate control inside the vehicle -- or -- Air conditioning system under the hood. If the climate control system is in question, temperature blends could be improper. Meaning cold air is being produced, but not directed through the vents. If the air conditioning system is of concern, then there is a problem with the system that utilizes the proper amount of refrigerant to produce cold air. There are multiple possible causes of this, and testing will need to be performed by a skilled technician.

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