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    • Part Number: AP4309018
    • MFG Part Number: 2323197
    • Made by: Whirlpool
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For Whirlpool Heater (Part Number: AP4309018)

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How can you test to SEE if this is working? I have a bad control board, and I do diagnostic to start heater, but is there a way to tell that heater is working? Does this type get red hot or change visually at all? Does it make a sound?

Rob for Model Number 10654206300

ANSWER Rob, The easiest way to test this type defrost heater is a resistance reading, with the wires disconnected. Using a multimeter across the the terminals there should be a resistance of 21 to 27 ohms resistance. You can also check for 120 VAC from each termianl of the heater to chassis ground, with the control in a test mode or defrost cycle,and the defrost thermostat cold and a "closed" circuit. This will sldo confirm a faulty control board or thermostat. Also after the refrigerator has been in a defrost cycle for 5 to 7 minutes, you'd be able the "feel" the heat from the heater on the back of your hand. 

Answered by AppliancePartsPros.com   |   Friday, October 19, 2012

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