Question 1

How to reset the Clean Air Optima CA503B Compact Smart air purifier?

Accepted Answer

The reset of the Clean Air Optima CA503B Compact Smart air purifier depends on what you want to reset. Here are the procedures according to your needs:

Simple restart of the device:

Press the power button located on the control panel to completely turn off the device.
Wait a few seconds (about 10 seconds).
Press the power button again to turn the purifier back on. The device defaults to Auto mode.

Resetting the WiFi connection:

If you are having WiFi connection issues or have changed networks, press and hold the power button for exactly 10 seconds.
Release the button when the WiFi indicator (light) blinks rapidly. This means that the WiFi function has been reset.
Then follow the steps in the Clean Air Optima® app to reconnect the device to your network.

Resetting the filter counter:

If you have replaced the composite filter (HEPA and activated carbon), press the filter change button to reset the filter timer.
The composite filter has a lifespan of about 1700 hours (4 to 5 months of use depending on usage).
The screen lights up for 1 second to confirm the reset.

A simple restart is sufficient to resolve most minor malfunctions. If the problem persists, check that the filters are not clogged and that the indicator light does not require a filter change (changing from white to gray or black).

Question 2

How to reset the filter wear indicator to 100% on the Clean Air Optima CA503B Compact Smart air purifier after replacing the filter?

Accepted Answer

To reset the filter wear indicator to 100% on your Clean Air Optima CA503B Compact Smart, you need to press the filter change button located on the control panel after replacing the composite filter. This action automatically resets the wear counter.

Exact procedure:

Replace the composite filter (HEPA + activated carbon) by opening the lower base plate of the device
Press the filter change button on the control panel
The display lights up for 1 second, confirming the reset
The device automatically switches to standby mode
Press the Power button to turn the purifier back on

The composite filter of your CA503B has a lifespan of 1700 operating hours, which is about 4 to 5 months depending on usage. When the wear indicator lights up, it means the filter needs to be replaced.

Important: Do not wet or rinse the composite filter with water. Only the pre-filter and HEPA filter can be cleaned with a brush or vacuum once a month.

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