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Customer Questions and Answers for Overload Protector (Compressor) by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18017994
Manufacturer Part Number: WP2183456

This overload protector is a safety device that mounts on the compressor and opens the circuit if overheating or excessive current is detected. Replacing a failed protector can help restore reliable compressor start-up and protect the motor from damage.

  • Monitors compressor temperature/current and interrupts power during an overload condition
  • Helps prevent compressor overheating and winding damage
  • Common symptoms: refrigerator not cooling, compressor won't start, clicking or humming then shutting off, repeated cycling from the rear machine compartment
  • Visible heat damage or a burnt odor at the start device area may indicate failure
What's included: 1 compressor overload protector Install notes:
  • Disconnect power before servicing; work in a well-ventilated area
  • Access the rear machine compartment; remove the cover to reach the compressor start assembly
  • Note wire positions and orientation; the overload fits on the compressor terminal alongside the start device/relay—seat it fully and securely
  • Inspect connectors for heat damage and ensure tight, clean terminals before restoring power

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Questions & Answers

For Whirlpool Overload Protector (Compressor) (Part Number: OEM18017994)

1 Answer

Hello Shawn, The overload would not cause the breaker to trip. This sounds like you have a bad compressor. 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

Gus, In a lot of cases this issue would be caused by a failed relay on the compressor. You would want to replace the overload and relay which will be part numbers relay WP10097204 and overload WP2183456.

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1 Answer

Phil, The most likely cause for the unit to trip the GFCI during defrost would be a bad defrost heater. You also really do not want to have the unit on a GFCI and on a designated circuit.

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1 Answer

Hello Darrell, If you wired the parts correctly, the compressor has failed. It is, however, very common to mis-wire the start device so before you condemn the unit, make sure it is wired correctly. The red wire should connect to the white device, (overload), and the white wire should connect to terminal 2 on the start relay. If there is no capacitor, you are done. If t6here is a capacitor, it should connect from one side of the relay to the other.

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1 Answer

Hello Scott, Does the unit trip the breaker when the compressor tries to come on? If so, you probably have a shorted winding in the compressor. If not, you will need to check the unit closer and provide more information so we can make a better diagnosis. We also need the model number from the units' I.D. tag so we can pull a wiring diagram for diagnostic reasons.

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1 Answer

Tjh, You will want to check the coils in the freezer and make sure that they are not impacted with ice. If they are then there is a defrost issue in which you would want to do a continuity test on the defrost thermostat and defrost heater. If they check ok then the defrost timer/adc board would need replaced. If the coils check ok then you will want to check to make sure that the evaporator fan motor is running and if not check for 120 vac to the fan motor and if there is voltage present then replace the fan motor. Also check the condenser fan motor the same way. Check for 120 vac. These would be the most common reasons for the unit not cooling.

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1 Answer

Hello Eric. Based on the information you provided, it sounds like the cold control WP2198202 is bad and will need to be replaced. Hope this helps.

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1 Answer

Eddie, You're sure you didn't damage any wires under the unit, or if you removed the doors they are aligned properly. There is no reset switch or overload in the voltage circuit in your fridge. You may want to start by checking the wiring in the compressor compartment in the back of the fridge, and you have have lost the power to the cold control or defrost timer, up in the refrigerator control panel. Good Luck

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