No Warm Airflow From Vent (Auto A/C): Notes

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

NO WARM AIRFLOW FROM VENT (AUTO A/C) DESCRIPTION AND POSSIBLE CAUSE

Malfunction symptom	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 detects DTCs Thermostat malfunction Malfunction due to engine coolant leakage Heater core malfunction