• Is the display part all turned o ?
Press the power button and then select the
desired function.
• Isn’t the power gone out ?
Use the air purier after the power comes
back on.
• Is the front cover closed ?Close the front cover properly.
• Isn’t it in manual ?
Set the desired operating mode.
• Isn’t the lter cleaning or
replacement time passed ?
Check the lter cleaning and replacement
cycles and then clean/replace the lter(s)
if necessary.
• Isn’t the lter cleaning or
replacement time passed ?
Check the lter cleaning and replacement
cycles and then clean/replace the lter(s)
if necessary.
• Isn’t there dust on the pollution
sensor’s lens ?
Clean the lens of the pollution sensor.
• Does the pollution level keep
indicating a high level ?
Adjust the sensitivity of the pollution
sensor to Insensitive or standard.
• Does the pollution level keep
indicating a low level ?
Adjust the sensitivity of the pollution
sensor to sensitive or standard.
• Check the symptoms, unplug the product, and ask service center.
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