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Currently, the two center burners do NOT light. There are three rows of 2 burners, one each front and back.
The center burners will CLICK but NO spark visible. The 2 burners to the RIGHT also click at the same time as the center burners so they must be connected someway internally. The 2 right burners work fine, btw.
I've done some light sanding of the igniter elements, no effect.
Now, I can MANUALLY light one of the 2 center burners no problem…and when I do that, magically, the OTHER center burner works PERFECTLY…will ignite and spark on/off perfectly repeatedly while other burner is on. This applies vice versa. But again ONLY when the other center burner is already ignited.
I’d like to try and repair this myself and just buy the part.
Can you advise the issue and what part I might need?
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Rank: Member
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Hey Sdipede,
You've sanded lightly on the spark ignitors themselves. Try sanding lightly on the burner where the spark actually jumps to.
The spark is going to jump to the closest ground wherever that may be. If that is dirty it will not make spark.
We say sanding, but think 'polishing' don't rough it up.
As dumb as this sounds, I will sometimes touch my finger to the sparking ignitor...this verifies that I indeed have voltage getting to it. It doesn't hurt, but doesn't feel like it's being licked on by kittens either. Use this hillbilly method at your own discomfort.
Alternatively, you can hold a small screwdriver near the ignitor and see if the spark will jump to that.
Let us know what you find.
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Rank: Member
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Thanks for reply. Tried the sandpaper of the burner, no effect.
As I stated originally, the igniters FULLY SPARK/WORK when ONE of the burners is lit, and vice versa. They have full spark, and ignite the gas.
So clearly the have the POTENTIAL to spark/ignite...they just don't work from dead start.
Is it possible the SPARK MODULE is defective on one side of it...this spark module controls 4 burners. 2 burners work fine, others do not.
This stove had the spark module replaced on the left 2 burners (had their own module) about a year ago, and at that time, ONE of the burners did not want to light, so technician changed the spark module.
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Rank: Member
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Yes, that is possible that a portion of the spark module failed.
It sounds likely given your symptoms.
It could also have grease build up on the connections of the spark module and/or ignitors. I've seen this give issues before.
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Rank: Member
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OK, no one has told me yet that PART of the spark module could fail vs. entire module. Would 2 burners on same circuit failing also be consistent with partial spark module failure?
I will check the connections for grease...but would that explain why when one burner is manually lit, the previously NON operating ignitor/module all of sudden works perfectly, and vice versa?
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Rank: Member
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Joined: 12/7/2014(UTC)
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"Would 2 burners on same circuit failing also be consistent with partial spark module failure?"
If they share the same spark module yes. I've seen both types on Viking. Ones where each ignitor has an individual module or where there are multiple outputs on the same module.
Your model number isn't pulling up on the site.
Do you know the part number for the module in question?
I'm 99% sure this is the spark module at fault. If they're individual for each ignitor - replace both.
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Rank: Member
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I opened up the stove, and the 2 center and 2 right burners share the SAME spark module. Took a picture of the part, it is:
INVENSYS U-67204-7
The 2 left hand side burners are controlled by another separate spark module (I remember the tech telling me this when he replaced that module about a year ago).
So you're saying it is quite possible the 2 center burners are not working due to partially defective spark module, but the 2 right hand side burners can still work fine?
So replace this module then?
Can you explain if the spark module is partially defective and the 2 center burners do NO work at all, then how can the burners spark and ignite AFTER one of the burners is manually light?? See original symptom diagnostics.
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Rank: Member
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Joined: 12/7/2014(UTC)
Posts: 31
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I can't say for sure why it would be that it doesn't work on the first attempt, but perhaps has to do with the wires resistance based on temperature. This is speculation at this point.
If you have two identical modules, swap one with the other and see if the issue follows that suspected bad module.
This will allow you to know for certain it's the spark module.
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Rank: Member
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Joined: 12/8/2014(UTC)
Posts: 14
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The other module controls just 2 burners, not exactly the same.
So you're thinking that when one of the non-functioning burners is manually lit, is changes the temperature/resistance of that igniter, which then allows the OTHER non functioning igniter to then start to work...fascinating.
So unless you think it's something else, I am going to change the spark module.
Thanks so much for the help!
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Rank: Member
Groups: Registered
Joined: 12/7/2014(UTC)
Posts: 31
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One more question, when you turn your burners on - do you have a flame detect feature on your cooktop? Once the flame is lit, does it auto-stop the spark or do you need to adjust the valve manually to stop the clicking?
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