F 21 is flashing not got a reset button no lights are lighting up

<b>Amana:<br /></b> <ol> <li>Press and hold the <b>dispenser lock</b> and <b>auto light</b> buttons on the dispenser for 4 seconds until the filter status indicator begins to flash, then release the buttons.</li></ol>or<br /> <ol> <li>Press and hold the <b>dispenser lock</b> and <b>water</b> buttons for 4 seconds until the filter status indicator begins to flash, then release the buttons.</li></ol>or<br /> <ol> <li>After replacing the water filter, press and hold the Reset Filter pad for 3 seconds. The Order and Replace indicator lights will blink and then go off when the system is reset.</li></ol><span style="font-weight: bold;">Brita:</span><br /> <ol> <li>Press firmly and hold start button for 5 to 10 seconds.</li> <li>Four bars will appear in the display, one after the other, and flash. Do not release the start button until the 4 bars appear and start to flash. If you have difficulty pressing the start button, a capped ballpoint pen may be used to press the button down.</li> <li>A small flashing dot in the lower right corner shows the indicator is working.</li> <li>Every 2 weeks a bar automatically disappears. When only 1 bar remains make sure you have a new filter on hand.</li> <li>After 2 months, when all bars have disappeared, an arrow will flash at the top of the display reminding you to change your filter. </li></ol><b>Frigidaire<br /></b> <ol> <li>Press and hold the <b>reset </b>button on the dispenser until the green light flashes (up to 15 seconds).</li></ol><b>GE:<br /></b> <ol> <li><b>P</b>ress and hold the <b>reset water filter</b> button on the dispenser for 3 seconds.</li></ol>or<br /> <ol> <li> Press the reset button on the dispenser for 4 to 8 seconds then release. </li></ol><b>Hotpoint:<br /> </b> <ol> <li><b>P</b>ress and hold the <b>reset water filter</b> button on the dispenser for 3 seconds.</li></ol> <b>Jenn-Air:<br /> </b> <ol> <li>Press and hold the <b>lock</b> and <b>light</b> buttons (<b>lock and water</b> on newer fridges) on the dispenser for about 4 seconds, until the indicator light blinks.</li></ol><b>Kenmore:<br /></b> <ol> <li>Press and hold the button next to the filter light for 10 seconds.</li></ol><b>KitchenAide</b>:<br /> <ol> <li>Press the <b>light</b> switch 5 times within 10 seconds. If the fridge has a <b>filter button</b>, press and hold it for 5-10 seconds.</li></ol><b>LG:<br /> </b> <ol> <li>Press and hold the <b>reset</b> button for 3 seconds.</li></ol><b>Magic Chef</b> <br /> <ol> <li> Press and hold the light and lock pads until the change filter light flashes. (approximately 3 seconds)</li></ol> <b>Maytag:<br /></b> <ol> <li>Press and hold the <b>lock</b> and <b>light</b> buttons (<b>lock and water</b> on newer fridges) on the dispenser for about 4 seconds, until the indicator light blinks.</li></ol>or<br /> <ol> <li>Press the refrigerator's light switch five times within ten seconds.</li></ol><b>Samsung:<br /> </b> <ol> <li>Press the <b>ice type</b> and <b>child lock</b> buttons simultaneously for 3 seconds. NOTE: Hold the buttons for only 3 seconds. If you press these 2 buttons simultaneously for 5 seconds, the reset function ceases.</li> <li>Release the buttons and repeat the same step one more time. The water filter indicator light should turn green.</li></ol>or<br /> <ol> <li><span>Press and hold the "Alarm/Hold" button for 3 seconds.</span></li></ol>or<br /> <ol> <li><span>Press and hold the <i>Fridge </i>and <i>Power Cool</i> buttons for 3 seconds.</span></li></ol><b>Whirlpool</b>:<br /> <ol> <li>Press the <b>light</b> switch 5 times within 10 seconds. If the fridge has a <b>filter button</b>, press and hold it for 5-10 seconds.</li></ol>