Heater will not turn off and A/C will not turn on

Tiny
RON SPALDING
  • MEMBER
  • 2005 FORD TERRITORY
  • 4.1L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 22,200 MILES
When running interior heater is on. Can’t turn off won’t turn down A/C won’t come on.
Sunday, August 4th, 2019 AT 10:27 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,512 POSTS
Hello,

This is common when the mode blend door actuator goes out. here is a guide to walk you through the repair with instructions on how the job is done one your car in the diagrams below:

https://www.2carpros.com/articles/replace-blend-door-motor

You may have a vacuum leak under the hood that supplies the HVAC system as well. this guide will help:

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Tuesday, August 6th, 2019 AT 11:28 AM

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