Constantly cutting out and re-igniting the oven

Probably the igniter is defective.

All gas appliances have a thermal cut out this will shut the gas off if the flame goes out the down side is when the thermal cut out becomes faulty it can shut the gas of when you are using the cooker the only fix is to replace the thermal cut out

If the igniter is failing frequently the burner may be shooting too much gas on the igniter. check to see if the holes on the burner tube are burned and too large. They should be no larger that about a 16th of an inch if they are much larger then they could be burning out the igniter. It could be you are using the oven frequently . the more you use the oven the shorter life on the igniter.

Hello there Gary and welcome to FIXYA

Usually when an oven won't bake properly or stops baking , it's because the bake igniter is weak or burned out. The igniter is a small, round or rectangular device, that's about 1 inch by 4 to 8 inches. It's near the burner itself. The burner is the tube-type device the gas flows through before it's ignited. It has many small holes on the sides to let the gas, when ignited, form a long, low flame. If the igniter is weak, if it glows red but doesn't get hot enough, or if it's burned out, the gas doesn't flow to the burner and the burner won't ignite. If this is the problem, you may need to replace either the igniter or the gas safety valve. Usually the igniter is to blame. I would disconnect the power to the oven then unplug the wiring assy and remove the part then clean all of the terminals really good then reassemble it then try the oven again if it still does not work properly i would go ahead and replace that part ok
Please keep me posted on how this is going i can give you more help but this is the most common problem ok?
Best regards Mike

Hello,

The reason the oven igniter will come on yet their is no heat in the oven is because that igniter is weak and not drawing the proper power to allow the gas valve to open. By replacing the oven igniter it will open the gas valve and once again heat the oven.


GENE

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.

You have a defective spark module. This is a device which breaks down the 120 incoming volts to a 12 volt spark to ignite the burners. Replace module and problem should be solved.

if the grill is constant sparking when the oven was on and turns off when the oven is not in use then u either have a defective pcb/ht lead or electrode if it is self lighting or if you have to push in a button then this button or control will have a problem

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

you should have an igniter set up in the oven follow the the front of the burner to the end (back) you should see the igniter follow the wires from the igniter to the elec- safety valve unplug those two wires and tape them together make sure stove is unplugged before you start his process. now plug in oven does igniter light if yes safety valve is bad if no unplug oven from outlet unwrap tapped wires and reinstall them where they came from it would help if you had a ohm meter cut th wires coming out of the igniter not too short in case you have to reconnect them but you will need ceramic wire nuts the do not melt after you cut the wires from the igniter check for continuity @ the igniter no continuity means bad igniter ,i doubt the thermostat is bad but we can troubleshoot it tommorrow if these steps dont work