Problem with Kenmore gas oven

I have a relatively new Kenmore gas range which is having some intermittent problems with the oven. Periodically, the oven will not ignite. When it is having problems neither the broiler nor the bottom burner will ignite. The display thinks that it is preheating the oven, but nothing happens...
This problem can develop suddenly (last night I used the oven for dinner and then 30 minutes later it no longer worked).
When the problem occurs, it always lasts a long time. The oven won't suddenly start working, but seems to work the next day. It did not work an hour later last night but it's working fine this morning.
This is happening about once a week for the past couple of weeks.
Sounds like it should be something pretty simple to diagnose. Any suggestions on how to do so?
Thanks in advance, Chris.
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Pittsburgh, PA - [240.8, 120.9] Apparent Rennerian

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Christopher R. Palmer wrote:

brands for that matter.. i guess they have a tester especially made to test it??? real simple for the sears guy, you just plug it into the board and then run the routine and you know if its the problem...... unlike the old gas ovens where you dont have the electronics and just have to worry about the gas and ignition, i looked all over for a built in oven with no electronics and could not find any..... if my electronics give me problems i guess i would just have to call the repair guy from sears.. it would be the first time i called anyone to service anything in this house since it was built about 30 yrs. ago... i can do it all but the new stuff(electronics)...
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Intermittent problems are usually the hardest to diagnose. Sometimes the appliance has to be used until the condition is constant in order to isolate the cause.

A start would be posting the complete model number off the range so we can see how it was designed (they're not all the same) and which components it uses might be suspect. You can find tips for locating the model and serial number tag on your appliances in the 'Repair Parts' section of my site linked below.
If your oven uses a hot surface (glow coil) ignition system, is the ignitor glowing when the oven should be on?
Dan O. - Appliance411.com http://ng.Appliance411.com/?ref411=Kenmore+range
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Yes, they are usually fun to diagnose.....

The model number is
665,75842001

The ignitors seems to be a spark ignitors.
Any suggestions for tracking this down would be greatly appreciated. Including things that I can do to confirm/rule-out possible causes.
Thanks! Chris.
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Pittsburgh, PA - [240.8, 120.9] Apparent Rennerian

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Christopher R. Palmer wrote:

pluged the wires into an outlet in the wall and it did not light up.. i held it with a pair of vicegrip pliers as if it did work it was gonna get hot real fast.... i then went to appliance parts place and got another one.. i had a kenmore gas wall oven... the shop told me its a GE... they sold me the part.. i went home and put it back in an there was no more prolbem with mine.. be careful the ignitor is pretty fragil.. if you drop it the ceramic stuff in there might crack and they it is junk..... hope this helps.... i also noticed that when the oven was working(when it was fixed) that the ignitor was on-light, all the time...... the gas will go on an off depending if its needs more or less gas to keep the oven at a certain temperature, but the ignitor has to be light to let the gas burn......
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Your model was built by Whirlpool and looks to be one of their new fangled "Direct Spark Ignition" systems which I have't had any experience with. There may be a 'tech sheet' located in the console panel which may help with diagnosis. I will warn you that there are lots of electronics in that range, even in the gas control circuit.
Sorry I couldn't be of help.
Dan O. - Appliance411.com http://ng.Appliance411.com/?ref411=Whirlpool+gas+range
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Yes, it does seem to be a tad more new fangled than I would like... Thanks for looking at it and thanks also to Jim for trying to help.
Cheers, Chris.
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Pittsburgh, PA - [240.8, 120.9] Apparent Rennerian

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