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What to Do When the Vehicle Diesel Heater Blows Cold Air?

1 Answers

DiRicardo

07/30/25 5:33am

When a vehicle diesel heater blows cold air, it is usually due to insufficient ventilation, which requires increasing the ventilation volume and improving the ventilation system to resolve the issue. Below is relevant information about vehicle diesel heaters: 1. Fuel Exceeds Rated Capacity: Compressed fuel has lower density, and during operation, it needs to release a certain amount of heat, thus requiring a larger volume of fuel. For diesel heaters, the internal space has certain limitations. When the fuel exceeds the rated capacity, ventilation may become insufficient. 2. Insufficient Oxygen Supply: When there is insufficient oxygen supply, the compressed diesel fuel cannot burn fully or may not burn completely within a short period, leading to the phenomenon of the diesel heater blowing cold air. 3. Working Principle of Diesel Heaters: Using light diesel or gasoline as fuel, after heating the heat exchanger, the fan delivers warm air into the vehicle cabin, achieving the heating effect. Diesel heaters transfer heat energy by burning diesel fuel into the cabin. Note that diesel cannot burn completely during combustion, and prolonged use may result in warm air containing a large amount of carbon monoxide. Inhaling excessive carbon monoxide can cause poisoning and, in severe cases, may harm human health.

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Where is the Original Headlight Code Located?

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What is the reason for the inability to close the sunroof on the older Mazda 6?

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