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Customer Questions and Answers for Timer, Defrost 6HR. by Whirlpool

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    • Part Number: AP3109443
    • MFG Part Number: 4391974
    • Made by: Whirlpool
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Questions & Answers

For Whirlpool Timer, Defrost 6HR. (Part Number: AP3109443)

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I have just bought a replacement 6 hour defrost timer. Which number does the lead go to? No.1 for continuous or no. 2 for cumulative?

Chuck for Model Number Admiral NT23B8SA

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I just got a replacement timer 4391974 for my Magic Chef (original TMDG823VB9) and just plugged it in. I saw the black lead on it but didn't do anything but left it there. I'm assumed the new timer is digital and it will do its defrosting automatically (i.e. if it realizes the fridge took a bit longer to run to cool than normal, it will go into defrost mode). Should I connect that wire to 1 (which I believe is a return/neutral) or 2 (which I believe is power in for defrosting), or just leave it as is and assume it will work fine.

Jeff W for Model Number RB19KN-4A

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I have an Admiral Ref. and I was wondering what terminal do I place the black lead on? (Defrost Timer Part#4391974)

Mark for Model Number NT19L9

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I just received the replacement defrost timer (4391974) for my Admiral fridge/freezer. Should the jumper be set to 'continuous' #1 or 'cumulative' #2? Thanks!

Chuck for Model Number NS22H 7A/ 7L15A

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I bought defrost timer 1/2hp 6 hour part no. 4391974. Should black lead wire be connected to terminal 1 or terminal 2? I have run it for a couple months connected to terminal 1, but it seems to defrost too long. Things in freezer melt, ice cubes start melting, then everything freezes back up. Ice cubes have huge chunk of ice on bottom of tray from so m any cubes melting. I'm going to try connecting black lead to terminal 2, but I'm just "shooting in the dark" on this.

FJ40 for Model Number SubZero 550

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Just received the replacement defrost timer (4391974) for a Jenn-Air fridge. Should the jumper be set to 'continuous' or 'cumulative'? Thanks.

Robert for Model Number JRTD226RL Jenn-Air

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I'd like to verify that I should configure my defrost timer (4391974) for continuous operation instead of cumulative. Can anyone help? The wiring diagram seems to indicate that the timer is powered directly instead of going through the thermostat.

Jack for Model Number JRT173R

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Installing new defrost timer pn 4391974 where does black jumper go.

Jim for Model Number rc22ln-3aw

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I am hooking up a Replacement Thermostat on my Magic Chef Refrigerator. The original timer has the following configuration: Terminal 3 Blue (Defrost Thermostat), Terminal 4 Orange (Freezer Fan), Terminal 1 White (Neutral (?), and Terminal 2 Yellow (Heater). Can I just plug in the existing wiring harness connector or do I need to rearrange the wiring to accommodate the new timer. I also have an extra wire coming from the timer. Where does that go.

Fred for Model Number BNT23L8A BL93B

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I just bought a defrost timer part # 4391974. The refridgerator has a four pronged plug: white wire from prong # 3 to neutral, orange wire from prong # 4 to the freezer fan, blue wire from prong # 1 to the temperature control, yellow wire from prong # 2 to the defrost heater. Can I just use the four prong plug without the jumper wires? If not, how do I hook them up and how do they attach to the time and/or plug? I don't really understand the instructions. Any help you may offer will be greatly appreciated.

David S for Model Number Norge refridgerator model NNT156G

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