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Why is there no warm air blowing from the van?

1 Answers

MalachiMarie

07/29/25 6:23pm

There are several main reasons why the vehicle's warm air is not heating up: 1. Hot water is not reaching the heater core. This includes clogged heater hoses or a faulty heater valve. For such issues, you can simply check by touching the two heater hoses entering the cabin in the engine compartment. If one is hot and the other is cold, it indicates a problem with the heater core or the heater hose system. 2. Warm air is not being delivered to the vents. This could be due to a clogged cabin air filter, a stuck heater air flap, a disconnected control cable, or a faulty control motor. 3. The blower fan is delivering insufficient airflow. For this issue, you need to inspect whether the cabin air filter is dirty or clogged, or if the blower fan is not providing enough airflow. If these are not the problems, then the issue might be with the control of the air duct flaps.

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