Is the air cleaning function in use?
The ionizer operates when using the air cleaning function to emit minor high frequency noise.
If the air cleaning function is used alone, and air flow is [mild airflow], minor high frequency noise may more easily be heard.
※ Applicability of the function may vary among the products.
Try this
Clean the filter.
➔ If you cleaned the fine filter a month ago or earlier, turn the power of the air conditioner off, and clean the filter.
If there is dust, a foreign object or an obstacle in a place through which air from the air conditioner passes, a louder sound of air blowing may be heard.
If the filter is covered with dust, cooling performance may be degraded, and may cause noise and condensation.
(Make sure that the protective vinyl was removed before using a new product.)
Noise is heard when you use mild airflow or sleeping airflow.
When running the product with mild and sleeping airflow, reduce the rotation rate of the air-blowing fan motor to reduce noise of air from the product.
Please note that, in such a case, motor noise may slightly be heard, which has been hidden by noise from airflow.
This guide was created for all models, so the images or content may be different from your product.