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Customer Questions and Answers for Defrost Timer by Frigidaire

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Manufacturer Part
4.89 (64)
By: Frigidaire
Part Number: OEM20399667
Manufacturer Part Number: 5304518034

The Defrost Timer is an OEM replacement part for Frigidaire upright freezers. It serves as a crucial component responsible for regulating automatic defrost cycles.

Causes of a faulty defrost timer relate to 20,000+ hours of constant exposure to freezer temperatures as low as -10 degrees Fahrenheit. Such extremes can compromise electrical switching mechanisms over prolonged usage periods.

Symptoms of a failed defrost timer include:

  • Inability to initiate automatic defrost modes  
  • Excessive ice and frost accumulation inside cabinet
  • Warm areas detected due to impaired fan circulation
  • Diagnostic codes indicating defrosting problems

This genuine Frigidaire replacement part is compatible with Kelvinator and some Kenmore units as well.

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Questions & Answers

For Frigidaire Defrost Timer (Part Number: OEM20399667)

1 Answer

Hello Rbw. If the unit is getting stuck in the defrost cycle, then you will need to replace the timer 5304518034. If the timer is good, and it is not in defrost cycle, then you may have a bad temperature control 5304513033. Hopr this helps.

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1 Answer

Hello D Thompson. You will need to get a HVAC technician to check the level of freon in the unit. You may have a restriction or overcharge in the sealed system. Hope this helps.

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1 Answer

Hello D. Thompson. No, this is a slight overcharge of freon causing the frosting. As long as it clears off the line and does not freeze solid, it should be fine. Hope this helps.

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1 Answer

Hi Jeff. If your refrigerator is running (and considering your question), then if you think you have a leak in refrigerant, you will need a qualified service technician to diagnose and estimate your repair. You can use the yellow pages to find a local repairman. Thank-you.

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1 Answer

Hello Jeff. Check and make sure the coils are clean, and the evaporator fan motor [5304442620] is running properly. Hope this helps.

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1 Answer

Hello Kelly. The first thing you may want to try is cleaning your coils on the back or bottom of your refrigerator. If this does not help, this issue is typically indicitive of a failed thermostat. This part can be tested with a multi-meter MA-DM1. I will include a link to an article detailing how to use a multimeter to test various parts in this message. I hope this info helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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1 Answer

Hello Sandra! If the door is not sealing properly the door gasket will need to be replaced. Your part number is 5304507199. Thanks.

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1 Answer

Hello Moe. It is not an adjustment, it advances the timer 5304518034 to defrost mode. If the timer is sticking, it will need to be replaced. Hope this helps.

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