How do I reset the change carbon indicator?

My personal suggestion would be to go for these repair catalogs.
I know this website reliable-store that i used to buy them from, and they sold online it was very good manual. Go ahead, I bet.

Filter indicator : The filter Indicator will be Red when you have used your water filter for 6 months, Reset the indicator (it will be Blue) after replacing the filter by holding the "Alarm/Hold 3 sec for Filter Reset" button for 3 seconds.

The above is how to reset the indicator

Unit should filter air after hepa filter change/carbon filter clean/reinstall, but "change filter" indicator light will still be on. Insert a small diameter rod (bent paper clip) into "reset" hole (next to indicator) and push button, and indicator light will go off.

Note: Hepa filter can be vacuumed to extend life.

Resetting your Refrigerator filter indicator light after changing your water filter

Some people are not aware that after you change your refrigerator water filter, there are two more steps that should be taken to complete the water filter change process.

Step 1:
Reset your water filter indicator light - Most new refrigerators come equiped with an indicator light that notifies you when it is time to change your water filter. This light does not automatically reset when you change your water filter. Here is a list of refrigerator manufacturers and how to reset the indicator light.

GE General Electric Refrigerators - Press and Hold the Reset Button for around 8 Seconds.

Step 2:
Flush a couple of gallons of water through your new filter. Since most refrigerator water filters are made of carbon, some carbon residue is present in the first gallon or two of water. This will leave a bitter taste and residue in your water. If you continue to have these problems after flushing a couple of gallons through the filter, it is possible that you have a defective water filter.

Most models also have a filter indicator reset button located in the same area. After changing the filter, reset the filter status light by pressing the Filter Indicator Reset button or by pressing and holding the Filter button for 3 seconds. The status light will change from red to green or the status display will change from "Replace" to "Good" when the system is reset.

If your model has a water filter indicator, but no reset button, press the light switch in the refrigerator compartment 5 times within 10 seconds to reset the system. The status light will change from red to green when the system is reset.

Water Filter Status Indicator
Light (select models)
The Water Filter Status Indicator Light serves as a
reminder to replace the water filter. A green light
indicates that the filter is in good condition. A red light
indicates the filter should be changed. Once light turns
red, it will remain red until function is reset.
To Reset Indicator:
• Press and hold both the Lock and Water
buttons simultaneously for four seconds. The
green filter status indicator light will flash
three times when the function has
successfully reset.

Water Filter Status Indicator
Light (select models)
The Water Filter Status Indicator Light serves as a
reminder to replace the water filter. A green light
indicates that the filter is in good condition. A red light
indicates the filter should be changed. Once light turns
red, it will remain red until function is reset.
To Reset Indicator:
• Press and hold both the Lock and Water
buttons simultaneously for four seconds. The
green filter status indicator light will flash
three times when the function has
successfully reset.
Sea Breeze

Water Filter Status Indicator Light
(select models)
The Water Filter Status Indicator Light serves as a
reminder to replace the water filter. A green light
indicates that the filter is in good condition. A red light
indicates the filter should be changed. Once light turns
red, it will remain red until function is reset.
To Reset Indicator:
• Press and hold both the LOCK and WATER
buttons simultaneously for four seconds. The
green filter status indicator light will flash
three times when the function has
successfully reset.

Resetting your Refrigerator filter indicator light after changing your water filter Some people are not aware that after you change your refrigerator water filter, there are two more steps that should be taken to complete the water filter change process.
Step 1:
Reset your water filter indicator light - Most new refrigerators come equiped with an indicator light that notifies you when it is time to change your water filter. This light does not automatically reset when you change your water filter. Here is a list of refrigerator manufacturers and how to reset the indicator light.
Amana Refrigerators - Press and hold the Auto and Dispenser Lock buttons until the water filter status indicator light flashes.
Frigidaire Refrigerators - Press and Hold the Reset Button Until the Indicator Light Flashes.
GE General Electric Refrigerators - Press and Hold the Reset Button for around 8 Seconds.
HotPoint Refrigerators - Press and Hold the Reset Button for around 8 Seconds.
Jenn-Air Refrigerators - Press and Hold The Light and Lock Buttons until the Water Filter light flashes.
Kitchen Aid Refrigerators - Press and Release the Light Button 5 times Quickly.
Maytag Refrigerators - Press and Hold The Light and Lock Buttons until the Water Filter light flashes.
Samsung Refrigerators - Press and Hold the Ice Type and Child Lock Buttons at the same time for 3 seconds.
Whirlpool Refrigerators - Press and Release the Light Button 5 times Quickly.
Step 2:
Flush a couple of gallons of water through your new filter. Since most refrigerator water filters are made of carbon, some carbon residue is present in the first gallon or two of water. This will leave a bitter taste and residue in your water. If you continue to have these problems after flushing a couple of gallons through the filter, it is possible that you have a defective water filter.
Once these two steps are completed, you are all set to enjoy great tasting ice and water through your refrigerator. If you don't see your manufacturer listed or the insructions don't work for your model please post a comment with your make and model number so that we can provide exact instructions for your model.

I discovered by sheer luck that if I hold down the OK button for a few seconds the filter indicator changed from the flashing 1% to 99%.