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Customer Questions and Answers for Surface Unit Switch Kit by Frigidaire

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Manufacturer Part
4.89 (64)
By: Frigidaire
Part Number: OEM7775421
Manufacturer Part Number: 5303935086

The Surface Unit Switch Kit is an OEM part for Frigidaire ranges. It controls the power and heat levels to the surface burners on the cooktop, allowing you to adjust the temperature for cooking. This kit typically includes the necessary components to replace a faulty switch and restore proper functionality to the burners.

Causes of a bad surface unit switch can include electrical malfunctions, wear and tear from regular use, or damage due to spills or impacts. A faulty switch can prevent the burner from heating correctly or at all.

Symptoms of a bad surface unit switch include:

  • Burners not heating up or heating unevenly
  • Inability to adjust the burner temperature
  • Burners not turning on or off properly
  • Sparks or electrical odors near the switch

This OEM replacement is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore models.

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Questions & Answers

For Frigidaire Surface Unit Switch Kit (Part Number: OEM7775421)

1 Answer

Jimmy, You're on target, the infinite switch has failed (internal contacts are bent and/or shorted) Based on the model number you supplied, the left front burner element is a "large" element and will need 316436001 surface element switch, to operate it properly.

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Randy L. for Model Number 790.96010406

I have a kenmore glass top range and the two large elements on the cook top have runaway problem. My wife will turn one of them on, and it will funtion properly for awhile. You can see the element pulsate as the temperature is being regulated, but then all of the sudden the element will come on and not turn off. It like it has been turned to high but it hasn't. Most of the time you can turn it off and back on and it will work for awhile. I once had to go to the breaker panel and turn off the oven breaker because the thing wouldn't shut off. After that we removed the knob so it couldn't be used on that burner. Thanks for the help.

1 Answer

Randy, Your post information would indicate you need the burner infinite switch(s) 5303935086 for both large (8" burner elements). The L2 to H2 circuit in the switch(s) cause the element to cycle off and on. The internal bi metal switch is failing and sticking closed causing the element to remain on the " HI" setting.

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1 Answer

Hi. The breakdown shows 2-screws holding down the switch plate cover. The infinite switch part # 5303935086 has a "P" terminal for the Pilot wire that lights a surface light to let you know the top is unsafe to touch. It also has a "L-1" > "H-1" & "L-2" > "H-2" terminals. Make sure you transfer the original wires to the new switch. Use a magnifying glass to see the old switch terminals if needed. There is a wiring diagram under the unit folded in a packet. Thank You.

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1 Answer

Scott, the electronic board is part number 5303271427. Unfortunately it has discontinued with no further replacements or cross references available and our company is unaware of any other available sources. Sorry about that!

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1 Answer

Hello Scott. Based on the information you provided, it sounds like the control board is bad and will need to be replaced on the unit.

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Doug R. for Model Number 13-2626-00-10

I have a rear left buner on a Tapan cook range that would not get hot. I replaced the element with one of the other elements and it still did not get hot. I ordered a new switch and installed it. The burner worked but the pilot light would not go on for just that element. The other switches did light the the pilot. I assumed the new switch was also defective and aske for a replacement. I installed the replacement switch. Now none of the switches have their pilot light come on.The switch I replaced comes on when switched to high but no heat when using the adjustable part of the switch. The voltage between the P and L1 connections are at 24V with the pilot wire disconnected. Please advise.

1 Answer

Hi Doug. On the back of the surface switches there is a "P" letter designating that the pilot lights are all wired in series from one p-terminal to the other. Make sure to use all black L-1 wires to the corresponding terminals. Follow the internal wiring diagram. All red H-2 wires connect there. They both then proceed to the next switch daisy chained together. This is the one - 120vac feed. The red L-2 is the other feed. The H-1 takes the closed switch L-1 feed to the burner. The H-2 takes the red l-2 feed to the burner. The p- sends the closed switch voltage to the surface lights. Infinite switch part # 5303935086. Make sure all wires are isolated from each other as it is very tight inside the cook top switch area. Use black electrical tape in between each terminal if need be. Thank You.

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1 Answer

Hello Ray. You will need to test and see if there is power coming to the element. If there is power there, and the element does not work, you will need to replace the element in the unit. If there is no power there, and the switch is turned on, you will need to replace the infinite switch 5303935086 on the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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