Customer Questions and Answers for Defrost Bimetal by Whirlpool

Hello Michael. No, you need to order WP4387503 for your model number.

Hello Redi4show, The manufacturer recommends WR50X122 for the model number you listed. If you do not use the one recommended there will be issues that can cause result in food loss.

Hello Net, The defrost timer is located in the control area inside the fresh food compartment. The replacement part number is W10822278. The loose black wire should be connected to the second terminal which is labeled terminal number 1. To test the old timer, turn the small knob on the bottom which can be seen through the small dime sized opening in the units' ceiling and turn it clockwise until you hear a loud click. The unit should be in defrost from 20 to 30 minutes and start back up. While it is in defrost, you can check for voltage at the defrost heater and/or defrost bi-metal. If voltage is there and the timer cycles back out of defrost on its' own, it is good.

Hello Two4qt. 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 and the defrost thermostat. 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. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

Charlie, This unit does have a defrost timer which is located in the control panel of the refrigerator section. The part number for the defrost timer is WP2183400.

Hello Micah, If the meter reads 0 that means that there is an open line. When cold the bimetal should be closed. Yes the part number WP4387490 is the correct bimetal for your unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

Hello Dave, The defrost thermostat clips onto the large line that comes into the back wall of the freezer compartment about halfway between the back wall and the evaporator coil.

Jeremiah, part number WP4387490 is a Whirlpool manufactured Defrost bimetal and is not listed for your model TBX14SABNRAA. For the given model you will use part number WR50X10006. Thanks!

Jeremiah, model ET4WSKXT06 does not pull up in our systems. Please recheck that model number. For the other given model, ET14JKXJN00, the defrost thermostat WP4387490 is the correct replacement and will work on that product. Thanks!

Hello Jim! I am showing only one heating element and one bi metal. The bi metal WP2211224 is the defrost thermostat which senses the temperature within the unit and activates the element when it is time to defrost and the heater is part number WP2263749 which turns on and defrosts the appliance. Thanks!