Dear card friends, the Delonghi M3000 heater blows out the smell of antifreeze. Is the heater water tank broken?

Special smell instructions

1. If your car heater has an alcohol-like smell, consider that the external circulation is on, the quality of the glass water is poor, etc.;

2. If your heater has a smell similar to antifreeze, it should be considered that it still exists under internal circulation. At this time, it means that your heater water tank is leaking.

“The most likely cause of odor in car heaters during use is that the air-conditioning filter element is too dirty. If the air-conditioning filter element is not replaced after being used for a long time, a large amount of dust and other foreign matter left behind after being filtered will adhere to the surface of the filter element. If the substances trapped in the air conditioning filter element contain a special odor and you confirm that there is an odor of antifreeze, it is recommended to check whether the antifreeze is leaking abnormally."