Hello, The Cooktop On indicator light is located on the console panel. When any control knob/cooktop element on the console panel is turned on, the Cooktop On indicator light will glow. Thank you for your inquiry on our Whirlpool appliances.

Hello, You may visit www.Whirlpoolparts.com to find and purchase parts online, chat with a parts specialist, or you may also call (844)200-5440 7 AM -Midnight - 7 days a week, to speak with a part specialist by phone. Thank you for your inquiry on our Whirlpool appliances.

Hello, model WFW4720RW has a Sanitize with Oxi feature. Thank you for your inquiry on our Whirlpool appliances.

Hello, Drain Pump Filter is located on the bottom front, where the circle is located. IMPORTANT: Make sure the washer is off before cleaning the drain pump filter.
NOTE: Perform the following procedure occasionally. 1. Open the flap by pushing in on the flap. This will reveal the drain pump filter. Remove the drawer by releasing the tab on each side. 2. Place a broad, flat container beneath the drain pump filter to collect the drain water. Release the black hose from the hose clip, remove the plug, and drain the hose into the container. Empty the container. Repeat this procedure if necessary until all the water has drained. Make sure that the black hose is completely dry, replace the plug, and secure the hose in the clip. NOTE: If water does not drain well, push in hose slightly to remove any possible kinks. 3. Lay a cotton cloth beneath the drain pump filter to absorb any water still in it. Then remove the drain pump filter by turning it counterclockwise. 4. Remove large clumps of lint by hand from the filter and place lint in a suitable waste container. Remove remaining residue from the filter by rinsing with water. 5. Reinsert the drain pump filter by turning it clockwise. Make sure to turn it in as far as it will go, with the filter handle remaining as close as possible to the vertical position. Thank you for your inquiry on our Whirlpool appliances.