Practice question

A blend-door actuator that hunts (continuously moves back and forth) and sets a code most likely has:

  1. A correct calibration
  2. A binding door, failed position feedback, or faulty actuator needing diagnosis
  3. Low refrigerant
  4. A dirty cabin filter

Answer: B — A binding door, failed position feedback, or faulty actuator needing diagnosis

The correct answer is shown above. Try the full quiz for additional practice.

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