Customer Questions and Answers for Refrigerator Air Damper Assembly by Whirlpool

Hello Joe. It sounds like you may have a defrost problem with the unit. Check and see if there is any frost build up on the back wall of the freezer. If so, you will need to test the defrost heater WP2323197 and the defrost thermostat WPW10225581. They should read closed for continuity when cold. You can test this with a multi-meter TJMA-DMT3. I will include a link at the end to assist you how to use the multi-meter if needed. If both parts are good, you will need to replace the defrost timer 4388932. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html