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Customer Questions and Answers for Range Limit Switch by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18032637
Manufacturer Part Number: WP74004530

Broiler not heating? This limit switch stops power when temperatures exceed safe limits. Common DIY fix—requires removing back panel and multimeter testing.

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Questions & Answers

For Whirlpool Range Limit Switch (Part Number: OEM18032637)

1 Answer

Hello Frankie, This can be a harness issue, a bad door switch, or a bad interior light switch on the control panel. The oven lights automatically come on when the doors are opened. When the doors are closed, press the LIGHT pad (upper or lower oven) on the control panel to turn the lights on or off. This switch 74008717 could be bad.

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Willie, The limit switch would be a safety to make sure that the oven does not overheat. You will want to test the limit switch for continuity and make sure that it has continuity. If no continuity then the part is bad and would need to be replaced. You will also want to check to make sure that the control board is sending power to the bake and broil elements.

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1 Answer

Hello Davey, This device has no polarity. In other words, it's like a fuse in the sense that the circuit doesn't care which way it's installed. You can hook it up either way and it will work just fine.

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