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Home >> Plymouth >> 1978 >> Arrow Base, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Auto. A/C Systems >> Testing >> Preliminary Procedure >> "Lo-Defrost"

Preliminary Procedure: "Lo-Defrost"

Push "LO-DEF" button and observe the following:

  1. Majority of discharge air should be from defroster outlets with bleed air from heater outlets. No air from A/C outlets.
  2. Discharge air temperature should remain as in "LO-AUTO" and blower speed should decrease one step.
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