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Customer Questions and Answers for Relay by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18040173
Manufacturer Part Number: WP8566493

This relay is used on multiple types of appliances: Ranges, Cooktops, Wall Ovens, Washers and Dryers.

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Questions & Answers

For Whirlpool Relay (Part Number: OEM18040173)

1 Answer

Brian, the switch will need to be tested for 240VAC. The terminals P1 to P2 should measure 240VAC when tested together as this is the incoming voltage. With the switch turned on, 240VAC should be measured at terminals 2 to 4. If there is not 240VAC leaving the switch, but there is entering, then the switch WP74011489 has failed and would need to be replaced. If the switch has 240VAC leaving it, then the element can be tested for 240VAC entering it. If there is 240VAC, then the element has failed. If there is not 240VAC, then the most likely issue would be a broken wire.

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1 Answer

Hello Jason, would you repost your question with the stove's model number and we will need the model number for the type of burner cartridge also, remove the cartridge and turn it over, the model number is on the bottom of the cartridge, that way we can find the wiring diagram for that type of cartridge.

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Wayne, On the remote relay it shows on the tech sheet that the COM on the relay will have the Hot line coming in from the switch to the relay.

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1 Answer

Hello Ron, There are many configurations of the Whirlpool washer, even more if you figure the configurations of top load and front load machines. If we could please trouble you for the model number from the units' I.D. tag, we can look at the configuration you have and assist you in the diagnosis and repair of your unit. Thank you for your understanding in this matter and we are looking forward to assisting you in the near future.

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