Igniter in oven will try to ignite. Hear gas flow. Can see spark on upper burner assembly but it does not ignite. Use custom broil and it will ignite the upper burner but will not stay lit after ignition procedure

For broil burner ignition an oven broiler burner spark electrode is used to ignite the gas. The electrode is a device that sits right next to the broil burner. It functions like a spark plug. As power is applied to it a spark jumps from the spark electrode tip to the to the electrode shield, igniting the gas. If the electrode is broken or worn out the spark may not occur or be intermittent. Visually inspect the electrode assembly for cracks in the porcelain housing or damage to the electrode tip itself. Be aware that a proper ground and the correct polarity of the incoming voltage to the range is necessary for the electrode control to sense the presence of a flame once the burner is ignited.
there is also a spark control module but I don't think that's it usually no spark when bad.
if you need or want parts ck here for your unit.
hope this helps a little
https://www.repairclinic.com/Shop-For-Parts/-x6b677373393037737373/Kgss907sss-Parts

The problem is usually the igniter not reaching the correct amp draw .When the igniter does not reach the correct amp draw it may allow the gas valve to partially open or not open at all. The igniters are inexpensive and easy to replace. This video will walk you thru the correct procedure for testing an oven igniter. It may be a different model but the testing will be the same.You can also enter your model # for diagrams and illustrations of your specific model. Not all models are available. All parts come with installation instructions.

Hello there: The oven bake burner and ignition components are located beneath the oven cavity. In most cases the oven bottom panel can be removed for access (check your owner's manual) but on some models the oven burner has to be accessed from below in the warming or broiler drawer area. If accessing from the top, a 'flame spreader' (flat metal plate) above the burner may also need to be removed to see the burner itself.Many ovens use a single oven burner in which case they only have a single gas valve and ignitor. The same burner is used for both bake and broil functions, the broil usually being in the drawer area below the oven. Higher-end models may have a separate bake and broil burner. On such a system there will be two ignitors, one for each burner. They may also employ a 'dual' gas valve (see illustration above) instead of using a separate valve for each burner.Some range models may have an additional broil burner located at the top of the oven cavity which may be referred to as a 'waist high' broil. If not, broiling usually takes place in the drawer area below the oven, which uses the same bake burner for the broil function. Most gas ranges currently available employ one of 3 basic gas ignition systems; pilot ignition, hot surface ignition system (which uses a 'glow bar' or 'glow coil' - aka an "ignitor") and a spark ignition system. The latter two being referred to as "electronic ignition" systems as they use electricity in one form or another to operate the oven heating system. Only the pilot ignition system has an actual "pilot" (which is a small but real "flame") which might need manual lighting.
If the surface burners of a range are a spark ignition type, the oven IS one of the possible kinds of electronic ignition systems and thus will not usually have a "pilot" which needs lighting. Be aware though that just because the surface burners might light via a spark doesn't necessarily mean the oven uses the spark type ignition system too.
There is one older style of electronic ignition system which does also use an oven pilot but it is very rare and such a system hasn't been used in oven models since the early to mid 70's. It is the 'constant pilot' *electronic ignition* system.


Making Observations
The oven burner's operation will usually need to be directly observed while in operation as the first step to troubleshooting problems.Ignition System Type Links
Ignition System Types:

Pilot Ignition

Electronic Ignition with Constant Pilot (rare)

Electronic Ignition with Glow Ignitor (most common)

Spark Ignition System

Is there continuity between the oven gas valve's terminals?


Hot Surface ('Glow Bar') Ignition System (most common)
This is the most popular system currently used for ovens and is comprised of a control mechanism (whether thermostat or electronic control), the oven ignitor and an oven gas valve.


What happens in this style ignition system is that the thermostat or electronic control switches power to the oven ignitor and gas valve circuit which are connected in series (one after the other). As power flows through the ignitor it heats and draws current (measured in amperage). Once the oven ignitor draws a specific amount of current the oven valve opens to allow gas to flow to the oven burner where the glowing hot ignitor (glow bar) ignites it. Power must continually flow through the ignitor and oven gas valve for gas to be released into the oven burner to create a flame.

It should usually only take in the area of 30-90 seconds for the oven ignitor to reach the proper resistance to allow the proper amperage to reach the gas valve to open it and for the ignitor to ignite the gas at the oven burner.

MOST modern appliances that use gas ignition (including dryers) no longer use a pilot. These appliances are equipped with a burner assembly with an electric igniter. The model number you have this question listed under is configured this way. The following link explains igniters and how to access the them on a gas range:

http://www.fixya.com/support/r401858-replacing_oven_igniter_gas_range

If you are having ignition problems with one of the oven manifolds (bake or broil), it may be a simple matter of a weak or bad igniter. Just because an igniter glows, does not mean it is good. If the igniter is weak, the gas safety valve will not open and gas will not flow. So...attempting to light with a match will not work. If BOTH manifolds are experiencing the same problem, you may have a bad regulator or electronic oven control (EOC) board. The EOC controls all your oven features.

The surface burners use an electrode type igniter for ignition. There is one mounted next to each surface burner assembly. They get their electric source from a spark module. If none of the surface igniters are working, you may have a bad spark module. If one single burner is not igniting, the problem is probably the electrode.

If you require additional assistance, please let me know. If your model number is different form the one listed, please post back with your correct information so that I may assist you better. The model number should be located on a name plate around the oven door, or lower drawer opening. Some manufacturers place the model number on the back of the operator console.

If you have any questions, please let me know. I hope this is helpful to you.

The igniter in the oven does not spark. It heats up and glows red hot until enough current opens the safety gas valve to the burner. It is not associated with the stovetop burners. Replace the oven igniter itself.

I had the same problem and swapped the oven igniter with the broiler igniter and the oven now works. This proved the oven igniter itself was the fault, now I have to replace the broiler igniter with a new one(which is much easier to get to).

FYI: An igniter may glow red and still not allow the oven to work. The igniter has to draw a certain amount of electrical current for the main gas valve to open.

That thing that is glowing is your oven igniter. Most modern ovens do not have a pilot light. The way the burner assemblies for the oven and broiler work is by an electric igniter with a gas safety valve. When the igniter reaches a certain current potential, it opens the gas safety valve, gas flows and you have ignition. This is a designed safety feature that prevents free flowing gas from entering the oven without ignition. If you can see the igniter glowing and the oven still does not light, more than likely you have a weak igniter. They do wear out with age and require replacement from time to time. There is a separate igniter for bake and broil. Usually, the oven igniter wears out faster than the broiler because of the frequency of use. the following link explains a little theory about igniter types and how they work. It also explains how to replace a defective one:

http://www.fixya.com/support/r401858-replacing_oven_igniter_gas_range

This is a very simple repair that anyone can do. just make sure you follow al the steps in the link provided. If you have questions, or require additional assistance, please let me know before you rate the solution. If you need assistance in locating a replacement igniter, let me know also. I hope this helps you.

it sound's like the spark module you might be going in too deep

i have a 900g stoves oven how do you change from auto to manual