SPONSORED LINKS

AC blows air intermittently

Tiny
EQUINOS
  • MEMBER
  • 2007 HYUNDAI SONATA
  • 3.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 101,000 MILES
The AC blows air on and off. When it is blowing air it doesn’t stop blowing air until I turn of the AC and turn it on again or until I turn off the car and turn it on again. Sometimes the car will blow air when I start it and sometimes it won’t.
Tuesday, January 15th, 2019 AT 11:25 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Hello,

This sounds like the relay or controller issue. Here are the blower motor and HVAC system wiring diagrams so you can see how the system works and the relay and controller location. I would try the relay first.

This guide will help you test it.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, January 16th, 2019 AT 4:08 PM

Please login or register to post a reply.

Related Air Conditioner No Air Content

Vents No Air Flow
GUIDE
Vents No Air Flow
The HVAC system is designed to blow air from either the floor, mid or defrost vents. In the following guide we will show you what to check for depending on the symptoms of...
VIEW MORE

Sponsored links