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Customer Questions and Answers for Start Relay (Compressor) by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM8938722
Manufacturer Part Number: 4318083

Start relay for refrigerator compressors that helps the compressor begin running at power-up. Replacing a failed relay can restore normal starting behavior and resolve common startup symptoms. What it does

  • Provides the initial start current path to the compressor during startup.
  • Allows the compressor to reach running speed, then drops out once the motor is running.
  • Common symptoms a bad relay may cause: compressor clicking, humming without starting, intermittent cooling or frequent cycling.
  • Installed as the electrical component used only on compatible compressor assemblies.
What's included Includes one start relay. Install notes
  • Disconnect power to the appliance before servicing to avoid electrical shock.
  • Access the relay at the compressor; remove and replace the relay only after confirming diagnostics.
  • Dispose of the old electrical part per local regulations.

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Questions & Answers

For Whirlpool Start Relay (Compressor) (Part Number: OEM8938722)

1 Answer

Denise, It sounds like you may have a leak somewhere in the sealed system and would require a technician to determine where the leak is to repair the product.

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1 Answer

Hello Marco, I'm sorry but we will need to ask you to post a new question including the model number from your units' I.D. tag so we can recommend parts that can be guaranteed to work properly on your unit. Thank you for your patience and understanding in this matter.

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1 Answer

Greg, The capacitor can be eliminated from the relay on the unit. Just plug up the lead wire that goes to the capacitor into the relay and the other wire to the overload.

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Joyce for Model Number 106720120

This 40+ year old freezer keeps warming up. When I turn it off for an hour or so then back on, the compressor kicks in and it freezes just fine - when it gets down to temperature and turns off, it will NEVER COME ON AGAIN until I go through the process (turn off, wait) again. It makes clicking sounds, but the compressor will not come on. I was told it was the thermostat, which is no longer available, but it sounds like it might be the relay - which IS available. Any thoughts? Thanks!

1 Answer

Hello Joyce. Based on the information you provided, it is neither. The clicking is due to a bad compressor. The reason it will work when you turn it off for about an hour is the pressure equalizes and the compressor can start.

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1 Answer

Hello Brian. The model number you provided is for a whirlpool built Kenmore unit. We can not get the wiring diagrams for Kenmore models to help with this. You will need to look on the unit for the wiring diagram.

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1 Answer

Hello Jimmy, The red wire will go to the white overload and the white wire will go to the right hand side of the relay.

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