Model #79032433900 KENMORE Counter Unit, Gas

  • Maintop
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  • Burner
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  • Wiring Diagram
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Question and Answers

Q:

What would cause a Kenmore stovetop to continually activate the igniters with all burners shut off?

A:

I can understand your frustration over your new cooktop malfunctioning. While you are waiting for your expert answer, I did some research on the unit. At this time, I was unable to locate information that would be helpful in regards to your question. Some of these questions that are asked will need specific research and will be answered by an expert with-in two business days but usually sooner.

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Julio -
May 21, 2013
A:

Thanks for the information about your range/oven model 79032433900; sorry you are having this issue, I will be glad to assist you. Based on the description of the igniters sparking continually, this would be caused by the igniter switches.  This will happen if the switches get wet, but will generally stop when the moisture dries.( happens often during cleaning) If this has not happened and the igniter is still sparking the solution is to replace the wiring harness that includes all the switches. _Always disconnect power supply before servicing the appliance and when testing live voltage be sure to wear proper safety equipment (gloves and eye protection) also be aware of sharp metals on productBefore replacing, test for any wiring breakage or loose connection that may be grounded. Here is a link for the Harness/igniter switches. I hope this helps you, if you need more help reply with added details and I will be happy to respond. If you get to the point where you need to have a service technician diagnose and repair this failure, you can schedule service through this link: Sears Home Services. Ron H.

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Ron H -
Sears Technician
May 23, 2013
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Q:

Gas cooktop: getting shocked

A:

Getting shocked from the cook top can be painful and I will be happy to help. Managemylife.com is a great place to find the answers to just about anything, especially on a cook top. I would suggest that you provide a little more information such as the make and complete model number of your product, so your expert will be able to provide you with the best possible answer. Just click on reply down below, where you can provide the additional information.

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Joseph P. -
January 02, 2012
A:

Kenmore, model 790

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Chris -
January 02, 2012
A:

One more tid bit I'd like to add. I had the unit unplugged for the past few months and have been manually igniting, I plugged it back in tonight and all igniters are now firing despit the position of the knobs. How do I diagnose which part is bad? Thanks again

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Chris -
January 02, 2012
A:

Thank you for your question and I understand your concern.

The polarity of the outlet should be checked. The polarity could be reversed or the cook top lost ground.

I added a YouTube video showing how to test the outlet with a voltage meter to see if it's connected properly.

I see by you second post that the spark ignitors are sparking when all the burner knobs are in the OFF position. This is likely cause by one of the burner switches not sitting stationary on the gas valve or one of the 4 switches is stuck in the closed position. You will need to access the burner valves and switches in order to check them with an Ohm meter to see if one is stuck closed. You may find one twisted out of position causing the switch to remain closed even though the burner is Off.

So that's what I can tell you at this point. I can give you more detailed help if you could provide me with the complete model number. If you could supply me with that information I will be happy to assist you further if needed.

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Joey S -
Sears Technician
January 05, 2012
A:

Joey, thanks for the advice so far. I checked the plug initially and it is wired correctly (correct polarity and it is grounded). The full model number is 790.32433900. I wasn't really able to follow your last instruction regarding the stuck switch (all of the ignitions are firing simultaneoulsly- all 5, not just 1). The included wiring diagram shows that each burner is to be grounded. I didn't see a ground wire, but perhaps it's grounded some other way. Additional tips would be welcomed. Also, do you know if a schematic of the assembly of the unit is available or perhaps could you send me one? Thank you again- Chris

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Chris -
January 05, 2012
A:

Chris: Each burner valve has a switch mounted over the stem and sits on top of the burner valve. Each burner valve has a switch. The switch must sit stationary so when the burner valve knob is turned to the light position the stem causes the moving part of the switch to close a contact and complete the circuit to the spark module. Whenever any one switch is turned to the light position it will cause all 5 electrodes to begin sparking the grounded burner. If one of the 5 switches has turned out of position it can cause the switch to compete the circuit and cause all 5 electrodes to spark continuously. I aslo added the wiring diagram and image of the unit below.

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Joey S -
Sears Technician
January 06, 2012
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