heater blender door actuator

2003 HONDA CIVIC
208,000 MILES • 1.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
RJCCML
  • MEMBER
  • 2 POSTS
winter the heat would not always be hot. if I played with the temperature knob sometimes I would get it hot. I got a new blender door actuator and replaced it. The box said it needed to be calibrated. I can't find a procedure. Car listed above is an EX.
May 12, 2020 at 9:06 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good morning,

This could be the air mix door actuator. This is a common failure for this issue.

I attached the picture and the procedure for you to replace it. You can get the actuator at any parts store.

Roy
Image (Click to enlarge)
Attached Media
May 13, 2020 at 3:28 AM
Avatar
RJCCML
  • MEMBER
  • 2 POSTS
The box said it needed calibration. I would imagine it needs to learn limits from one direction to the other. I see videos for other brand cars but none for Honda.
May 13, 2020 at 7:32 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Box? What box?

That is because there is no calibration for the Honda actuators. They are plug and play.

I would remove the actuator and move the door manually and see if you get heat and cold.

Roy
May 13, 2020 at 7:36 AM