INFINITI QX80 heater stops blowing hot air when stationary with engine running on INFINITI QX80

Some INFINITI QX80 owners report experiencing issues with their heater not blowing hot air when stationary with the engine running. Common causes of this problem include a broken heater blower motor, a malfunctioning thermostat, or a failed heater blower motor resistor. Additionally, low coolant levels, air in the cooling system, a clogged heater core, a faulty blend door actuator, a bad water pump, a dirty cabin air filter, or an HVAC control unit malfunction may also contribute to the issue. Owners may notice little to no airflow from the vents if the blower fan is not working correctly, indicating a potential blower motor failure. Furthermore, a bad heater core, which is responsible for transferring engine heat to the cabin air, could be clogged, leaking, or worn out, resulting in inadequate heating. It is advisable for owners to check these components for faults and seek professional assistance for diagnosis and repair if necessary.