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Home >> Mazda >> 2024 >> 3 Carbon Turbo, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Symptom Troubleshooting - Heater, Ventilation & Air Conditioning (HVAC) >> No Warm Airflow From Vent >> Outline

No Warm Airflow From Vent: Outline

NO WARM AIRFLOW FROM VENT DESCRIPTION AND POSSIBLE CAUSE

Troubleshooting item No warm airflow from vent
Description
  • No warm airflow even if airflow temperature setting is MAX HOT.
Possible cause
  • Blower motor malfunction
  • Engine is overcooling.
    • PCM stores DTCs.
    • Thermostat malfunction
  • Heater core malfunction
  • Engine coolant leakage
System wiring diagram
  • Not applicable