Vehicle Questions and Answers
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If there is reduced airflow from the vents (whether hot or cold) in your VW T25, it may be due to a faulty blower motor, fan speed control switch, or resistor. Another possible reason could be malfunctioning electronically controlled blend doors that regulate airflow direction. The heater blower motor utilizes a distinct "squirrel cage" design to pull air into the vehicle's climate control system and distribute it through the vents. This motor requires a significant amount of power, which is managed by a switch in the climate control unit and a blower motor resistor.
The reason your VW T25's heater blower isn't working might be due to a faulty blower motor resistor or a malfunctioning blower motor.