Product: EFB-P35HM EFB-PCT2 EFB-PC30 EFB-PCTH EFB-P20H
E9 is an error code meaning there is a problem with the temperature sensor probe. It may be related to high humidity in the environment. It is recommended to take out the filter and place it in a ventilated position to dry it, and then restart the product after 5 to 10 minutes. If this code still appears after restarting, please bring the product to the customer service center for inspection and repair.