What does the diesel heater E03 code mean?

[LaEthan]

Diesel heater E03 is a type of fault code, which includes issues such as light smoke without ignition and easy extinguishing after combustion. Below are detailed explanations and solutions: Light smoke without ignition: This situation is caused by poor ventilation. If poor ventilation leads to an oxygen-deficient internal environment, the compressed fuel cannot burn completely and only emits smoke. The solution is to clear the ventilation system of the diesel heater or reduce fuel consumption to create a more relaxed ventilation environment. Easy extinguishing after combustion: This issue is usually caused by non-circulating liquid in the water pipe or gas in the fuel line. Check if the water pipe is bent, ensure the normal circulation of the liquid, and avoid the presence of air in the fuel line. The function of the diesel heater is to preheat the car's engine, avoiding difficulties in starting the car in cold environments, among other issues. It can also heat the cabin, reducing the increased fuel consumption caused by long-term operation of the car's air conditioning system. Note: When using a diesel heater, pay attention to safety and regularly clean carbon deposits. If it is not used for a long time, start it periodically to ensure normal operation the next time it is used.