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Heater air blend actuator

Tiny
GMORENO
  • MEMBER
  • 2004 HONDA PILOT
  • 3.5L
  • 6 CYL
  • AUTOMATIC
  • 140,000 MILES
As I line up lever and cable/rod to position on gears on actuator and have the temperature knob on say hot air full, as soon as I connect wire connector to actuator the actuator reverses temperature to opposite hot lever/rod/reverses or turns to cold. If I line up lever/rod to cold air with actuator on that position as soon as I connect wire harness, the actuator turns to opposite temperature.
Does this make any sense?
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Monday, October 23rd, 2017 AT 6:24 PM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Yep it sounds like the actuator is bad becasue that got the polarity of the motor that is inside the actuator backwards.

Is it an OEM part?

Please let us know what happens.

Cheers, Ken
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Wednesday, October 25th, 2017 AT 4:53 PM
Tiny
GMORENO
  • MEMBER
  • 4 POSTS
Hi Ken and thank you for replying. It is a part from a salvage yard, I did not thought about polarity
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Wednesday, October 25th, 2017 AT 7:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Was the actuator from the same year of car?
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Friday, October 27th, 2017 AT 11:04 AM
Tiny
GMORENO
  • MEMBER
  • 4 POSTS
Ken
It was the same part number. AW063700-8160
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Friday, October 27th, 2017 AT 4:09 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Hum, thats a good one there it should work. I wonder if the car you took it out of had the same problem. I will post this question in our expert forum to see if we can get a response. We have some good electrical guys here.

Please stand by.
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Saturday, October 28th, 2017 AT 4:13 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It could also be attempting to go through calibration which will send it to both extremes.
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Saturday, October 28th, 2017 AT 4:22 PM
Tiny
GMORENO
  • MEMBER
  • 4 POSTS
Hey Ken and WrenchTech
I finally got it working, the 12V motor was inverted in polarity, after cleaning and aligning gears and lever/shaft and temperature know the actuator dial position itself "home". I believe cleaning gears and using dielectric grease on the dial circuitry helped a great dial inside the actuator, knob controls temperature like a charm.
Thank you both, I will post pictures later to illustrate this problem better.
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Saturday, October 28th, 2017 AT 5:17 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Saturday, October 28th, 2017 AT 5:48 PM

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