Coway AP-2021A Gray User Manual page 29

If an error code as shown below appears while using the product, check the cause of the error and
operate according to the guide.
- Up and down motion of directional airflow panel
(Step motor 1) motor current abnormality
It is displayed when the up-down motion of the directional airflow
panel motor current abnormality is detected.
[Resolution guide]
It is a temporary interference and can be solved by pressing the mode
or circulation button.
- Front and rear motion of directional airflow panel (Step
motor 2) motor current abnormality
It is displayed when the front and rear motion of the directional
airflow panel motor current abnormality is detected.
[Resolution guide]
It is a temporary interference and can be solved by pressing the mode
or circulation button.
- Buttons
It is displayed when there is no communication with the indicators
and buttons or when you press the button for more than 30 seconds.
[Resolution guide]
It is a temporary failure and is recovered automatically.
Please wait a moment.
- Gas sensor
It is displayed when the gas sensor does not operate normally.
The air quality display lights up red.
[Resolution guide]
Turn off the power, unplug the power cord, and plug it back in again
for operation.
- Power
It is displayed when the power supply is not normal.
Fans and motors stop and power turns off.
[Resolution guide]
Turn off the power, unplug the power cord, and plug it back in again
for operation.
Others
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