On the front of your system, above the bottom filter, three buttons light up; these three buttons are your filter service life buttons. Each filter service life button has some writing that corresponds to one of the three stages. To reset a filter:
Previous firmware-
1. Hold down the corresponding button for three seconds.
2. Wait for it to beep.
3. Hold it down for another three seconds till it beep. Once this is done, the filter has been reset.
New firmware-
1. Hold down the corresponding button for three seconds.
2. Wait for it to beep.
3. Once this is done, the filter has been reset.
If you have any questions or need additional assistance, please contact us at support@123filter.com or call us at (678) 261-7611.