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Customer Questions and Answers for Infinite Switch Top Burner Control Switch by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18042066
Manufacturer Part Number: WP9759474

The Infinite Switch is an OEM part for Whirlpool ranges and cooktops. It controls the heat levels of the surface burners, allowing for precise temperature adjustments during cooking.

Causes of a bad infinite switch can include electrical malfunctions, wear and tear from frequent use, or exposure to high temperatures. These issues can impair the switch’s ability to regulate the burner’s heat levels accurately.

Symptoms of a bad infinite switch include:

  • Inability to adjust burner heat levels
  • Burners not heating up or staying on high heat regardless of settings
  • Burners not turning on at all
  • Sparks or unusual noises when adjusting the switch

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

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Questions & Answers

For Whirlpool Infinite Switch Top Burner Control Switch (Part Number: OEM18042066)

Jean for Model Number GJC3034RP00 WHIRLPOOL

From the diagram it is ambiguous which switch part I need to replace. Both the front left burner (with the bridge to rear) and the right rear (dual size & also simmer selectable) are either off or on; when on, it is always at the totally hot temp, with zero other choices, no matter where the switch is set. Do I need the infinite switch changed out for both? Is it the same part of different? Do all four burners use the same inifinite switch?

1 Answer

Jean, Based on the information it does appear that you will need to replace both switches for this issue. The left front burner switch is part number WP9759474 and the right rear burner switch is part number WP3191050

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1 Answer

Hello Bill, Sounds like you need to check the harness for any shorts and if none are present, replace the infinite switch WP9761048.

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1 Answer

John, The infinite switch WP9759474 controls the voltage to the burner, thru the L2 circuit of the switch, your on the right track, you most likely have a inoperative infinite switch. Thanks and Good Luck.

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Karl for Model Number GJC3034LB02

I checked the fuse box under my counter top stove and I had 2 burnt glass fuses. I changed both. I turned back on the breaker in the main panel of the house. I just push down on the knob of the counter top stove model GJC3034LB02 and the glass fuse burns instantly. I checked all electrical connections and all seems fine. I tried it again and burnt another fuse. I then took apart the counter top stove and looked at all the burners. They do not have any signs of a short(i.e.: any black or burn marks). I then took apart the section where the knobs are and they all looked fine but the one that has the "accumiser". I see under it a small brown mark which looks like a burn mark. In between the slots, there seems to be burn marks in the form of black soot.Other than changing this knob, is there any other possibily for this sort of problem??? Could it be anything else???

1 Answer

Hi Karl. Did you notice your oven bake / broil working OK also? If so then start by removing all power to the unit and check the cord coming to the terminal bock. Make sure all connections are tight and not shorted. Then you can un hook the wires to the "accumiser" control. There should be a wiring diagram to assist you in behind the control panel. If not there, then behind the storage drawer folded in a bag on the sides. L-1 to H-1 should read open at Off. Same on L-2 to H-2. If your meter does not come open at off, or closed at temperature settings, then replace the control with part # AP3841140]. Thank you.

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1 Answer

Hello Simpson. Based on the information you provided, it sounds like the switch WP9759474 is wired wrong. According to the model number, L1 should be a Black wire. L2 should be Red wire. P is a Violet wire. H1B is a Orange/Black wire. H1A is a Orange/White wire. H2 is a Grey/Black wire. Make sure the switch is wired this way. Hope this helps.

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1 Answer

Hello Satnley. According to the model number you provided, WP9759474 is the correct switch for the left front burner. Hope this helps.

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