What causes the foul smell in the Dongfeng Fengshen AX7 air conditioning?

1 Answers
IsabellaLynn
07/29/25 11:06pm
Dongfeng Fengshen AX7 air conditioning foul smell reasons: 1. When an air conditioning system that has not been used for a long time is turned on, it may produce an unpleasant odor. This is because the condensed water retained on the heat exchange coils, fins, and surrounding components slowly evaporates, creating a high-temperature environment around the coils that is conducive to microbial growth. The large amount of gas produced during microbial reproduction is then released by the air conditioning system, becoming the source of the foul smell. 2. If the air conditioning has been running for an extended period, dust can accumulate in the filters and copper tubes, and the spaces between the heat exchanger fins can also become filled with dust. When this accumulation reaches a certain level, it can cause blockages and produce a certain odor. When the air conditioning is turned on, this odor is dispersed into the air through the vents. 3. After the air conditioning operates in cooling or heating mode, moisture often remains inside the system. If the air conditioning is turned off immediately without a drying or anti-mold function, this internal moisture persists. Over time, mold can develop, leading to the natural production of a musty smell.
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