Water Filter Indicator

The water filter status light, present on some models, will help you know when to change your water filter. The light, or indicator, is located on the temperature control panel in the refrigerator compartment or on the dispenser control panel on the freezer door. The light will change from green to yellow. This tells you that it is almost time to change the filter. It is recommended that you replace the filter when the status light changes to red OR when water flow to your water dispenser or ice maker decreases noticeably.

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. The status light will change from red to green 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.

also here is a link to the site for pics
http://whirlpool.custhelp.com/cgi-bin/wh...*&p_li=&p_topview=1

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%.